{"data":[{"entity_id":"agentcash","fields":{"name":"AgentCash","vendor":"AgentCash","category":"wallet","chains":"Base (x402 primary network); USDC","payment_protocols":"x402 (HTTP 402-based micropayments)","api_base_url":"https://agentcash.dev","services":"agent payment — https://agentcash.dev — Enables AI agents to send and receive payments using x402","auth_model":"Not publicly disclosed","pricing_model":"Not publicly disclosed","status":"active","docs_url":"https://agentcash.dev","announcement_url":"https://x402.org/ecosystem","last_verified_at":"2026-05-04T14:00:00Z"},"evidence":{"name":{"url":"https://x402.org/ecosystem","retrieved_at":"2026-05-04T00:00:00Z","title":"x402 Ecosystem — AgentCash","excerpt":"AgentCash enables AI agents to send and receive payments using x402, providing a simple interface for autonomous agent monetization. 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Now in Beta."}}},{"entity_id":"cloudflare-x402","fields":{"name":"Cloudflare x402","vendor":"Cloudflare","category":"payment-protocol","chains":"Base, Ethereum, Polygon, Optimism, Arbitrum, Avalanche, Solana, Aptos, Stellar, Sui; Base Sepolia (testnet); USDC primary","payment_protocols":"x402 (HTTP 402-based); exact scheme (fixed ERC-20/USDC transfer); upto scheme (EVM, max-authorize then settle-actual); deferred scheme (proposed — HTTP message signatures, batch/subscription settlement without per-tx on-chain)","api_base_url":"https://developers.cloudflare.com/agents/x402/","services":"Agents SDK x402 client — https://developers.cloudflare.com/agents/agentic-payments/x402/pay-from-agents-sdk/ — withX402Client wraps MCP clients so Workers-based agents auto-pay 402 responses\npaidTool MCP server — https://developers.cloudflare.com/agents/agentic-payments/x402/charge-for-mcp-tools/ — paidTool() decorator gates any MCP tool call behind an x402 micropayment\nHTTP content gating — https://developers.cloudflare.com/agents/agentic-payments/x402/charge-for-http-content/ — Worker proxy that gates APIs, web pages, and files with x402 paywall\npay-per-crawl — https://developers.cloudflare.com/ai-crawl-control/features/pay-per-crawl/ — Cloudflare-native deferred x402 payments for AI crawlers; daily batch settlement via card or stablecoin\nx402 playground — https://playground.x402.cloudflare.com/ — Live demo environment with testnet USDC wallet provisioned per session","auth_model":"Permissionless x402 — client provides PAYMENT-SIGNATURE header; no accounts required; Cloudflare Workers authenticate via Coinbase CDP facilitator for settlement","sdk_languages":"TypeScript/JavaScript (x402-hono npm, @x402/fetch npm, @x402/evm npm, agents/x402 included in Cloudflare Agents SDK)","pricing_model":"Open-source SDKs; x402 has no protocol fee; Cloudflare Workers billing applies; pay-per-crawl deferred settlement via card/stablecoin","status":"active","docs_url":"https://developers.cloudflare.com/agents/x402/","announcement_url":"https://blog.cloudflare.com/x402/","last_verified_at":"2026-05-04T14:00:00Z"},"evidence":{"name":{"url":"https://blog.cloudflare.com/x402/","retrieved_at":"2026-05-04T14:00:00Z","title":"Launching the x402 Foundation with Coinbase, and support for x402 transactions","excerpt":"Cloudflare is partnering with Coinbase to create the x402 Foundation. 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Over 100M payments processed. Open standard built on HTTP 402. TypeScript, Python, Go SDKs. Zero protocol fees. Supported by Coinbase, Cloudflare, AWS, Stripe, Vercel, World."},"services":{"url":"https://x402.org/writing/x402-v2-launch","retrieved_at":"2026-05-04T14:00:00Z","title":"Introducing x402 V2: Evolving the Standard for Internet-native Payments","excerpt":"V2 evolves the specification based on learnings from 6 months of x402 performing real-world payments: clearer separation between clients, servers, facilitators; modular SDK; Aptos, Stellar, Hedera, Sui support added; CAIP standards; @x402 npm org."},"auth_model":{"url":"https://x402.org/writing/x402-v2-launch","retrieved_at":"2026-05-04T00:00:00Z","title":"Introducing x402 V2 — x402.org","excerpt":"x402 v2 launched December 11, 2025. Over 100M payments processed. Open standard built on HTTP 402. TypeScript, Python, Go SDKs. Zero protocol fees. 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Foundation launched jointly with Cloudflare."},"last_verified_at":{"url":"https://x402.org/writing/x402-v2-launch","retrieved_at":"2026-05-04T14:00:00Z","title":"Introducing x402 V2: Evolving the Standard for Internet-native Payments","excerpt":"V2 evolves the specification based on learnings from 6 months of x402 performing real-world payments: clearer separation between clients, servers, facilitators; modular SDK; Aptos, Stellar, Hedera, Sui support added; CAIP standards; @x402 npm org."}}},{"entity_id":"crossmint","fields":{"name":"Crossmint Agentic Payments","vendor":"Crossmint","category":"hybrid","chains":"50+ blockchains via unified API; primary: Base, Ethereum, Solana; USDC, USDT stablecoin settlement","payment_protocols":"x402 (HTTP 402-based micropayments), Google AP2 (Agent Payments Protocol), Visa Intelligent Commerce, stablecoin rails (USDC/USDT)","api_base_url":"https://api.crossmint.com","services":"agent wallets — https://docs.crossmint.com/wallets/introduction — Provision smart-contract wallets for AI agents; modular signers with scoped permissions, gas sponsorship, 50+ chains\nvirtual cards — https://www.crossmint.com/solutions/agentic-finance — Issue Visa virtual cards per agent with programmable spending controls\nagentic checkout — https://www.crossmint.com/products/agentic-checkout — API for agents to purchase physical/digital goods (Amazon, Shopify) using stablecoins\nstablecoin onramps — https://www.crossmint.com/products/onramps — Fund agent wallets via card or stablecoin in 150+ countries\nagent credentials — https://www.crossmint.com/solutions/agentic-finance — W3C verifiable credentials for agent identity (KYC, company rep, platform affiliation)","auth_model":"API key (CDP console); smart-contract wallet with configurable signers; MPC/HSM-backed key management; SOC 2 Type II audited","sdk_languages":"TypeScript/JavaScript (React, React Native, Node.js), Swift, Kotlin; REST API (API version 2025-06-09)","pricing_model":"Managed service; pricing via sales/contact; gas sponsorship available with configurable limits","status":"active","docs_url":"https://docs.crossmint.com","announcement_url":"https://docs.crossmint.com/wallets/introduction","last_verified_at":"2026-05-05T00:00:00Z"},"evidence":{"name":{"url":"https://www.crossmint.com/solutions/agentic-finance","retrieved_at":"2026-05-04T00:00:00Z","title":"AI Agent Payments Infrastructure (Wallets, Cards & Payouts) | Crossmint","excerpt":"The payments platform built for AI agents. Supercharge your agent with financial tools: agent wallets, virtual cards, and stablecoin infrastructure — all in one platform. Supports x402, Google AP2, Visa Intelligent Commerce."},"vendor":{"url":"https://www.crossmint.com/solutions/agentic-finance","retrieved_at":"2026-05-04T00:00:00Z","title":"AI Agent Payments Infrastructure (Wallets, Cards & Payouts) | Crossmint","excerpt":"The payments platform built for AI agents. Supercharge your agent with financial tools: agent wallets, virtual cards, and stablecoin infrastructure — all in one platform. Supports x402, Google AP2, Visa Intelligent Commerce."},"category":{"url":"https://www.crossmint.com/solutions/agentic-finance","retrieved_at":"2026-05-04T00:00:00Z","title":"AI Agent Payments Infrastructure (Wallets, Cards & Payouts) | Crossmint","excerpt":"The payments platform built for AI agents. Supercharge your agent with financial tools: agent wallets, virtual cards, and stablecoin infrastructure — all in one platform. 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New SDK: Kotlin."},"auth_model":{"url":"https://www.crossmint.com/solutions/agentic-finance","retrieved_at":"2026-05-04T00:00:00Z","title":"AI Agent Payments Infrastructure (Wallets, Cards & Payouts) | Crossmint","excerpt":"The payments platform built for AI agents. Supercharge your agent with financial tools: agent wallets, virtual cards, and stablecoin infrastructure — all in one platform. Supports x402, Google AP2, Visa Intelligent Commerce."},"sdk_languages":{"url":"https://docs.crossmint.com/wallets/introduction","retrieved_at":"2026-05-05T00:00:00Z","title":"Crossmint Wallets SDK — Overview","excerpt":"Crossmint Wallets SDK V1: smart contract wallets with modular signers, gas sponsorship, 50+ chains, agent wallets use case explicitly listed. API version 2025-06-09. 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The previous version docs remain accessible at /wallets/v0."},"last_verified_at":{"url":"https://docs.crossmint.com/wallets/introduction","retrieved_at":"2026-05-05T00:00:00Z","title":"Crossmint Wallets SDK — Overview","excerpt":"Crossmint Wallets SDK V1: smart contract wallets with modular signers, gas sponsorship, 50+ chains, agent wallets use case explicitly listed. API version 2025-06-09. New SDK: Kotlin."}}},{"entity_id":"frames-engineering-agentwallet","fields":{"name":"AgentWallet","vendor":"frames-engineering","category":"wallet","chains":"Base (eip155:8453), Ethereum (eip155:1), Optimism (eip155:10), Polygon (eip155:137), Arbitrum (eip155:42161), BNB Smart Chain (eip155:56), Gnosis (eip155:100), Sepolia, Base Sepolia, Solana (mainnet + devnet)","payment_protocols":"x402 (v1 + v2), MPP (Machine Payments Protocol / Tempo)","api_base_url":"https://frames.ag/api/v1","services":"x402/fetch — https://frames.ag/api/wallets/{user}/actions/x402/fetch — One-step payment proxy: auto-detects 402 or MPP, signs, retries; supports preferredChain, preferredToken, dryRun\nx402/pay — https://frames.ag/api/wallets/{user}/actions/x402/pay — Manual x402 payment signing (v1 + v2)\nmpp/pay — https://frames.ag/api/wallets/{user}/actions/mpp/pay — Manual MPP (Tempo) payment signing via WWW-Authenticate header\ntransfer — https://frames.ag/api/wallets/{user}/actions/transfer — EVM USDC/ETH transfer (9 chains)\ntransfer-solana — https://frames.ag/api/wallets/{user}/actions/transfer-solana — Solana SOL/USDC transfer (mainnet + devnet)\ncontract-call — https://frames.ag/api/wallets/{user}/actions/contract-call — EVM or Solana program call; supports raw tx and VersionedTransaction\nsign-message — https://frames.ag/api/wallets/{user}/actions/sign-message — Sign arbitrary message (EVM or Solana)\nfaucet-sol — https://frames.ag/api/wallets/{user}/actions/faucet-sol — Solana devnet faucet (0.1 SOL, 3 req/24h)\nbalances — https://frames.ag/api/wallets/{user}/balances — Multi-chain wallet balances\nactivity — https://frames.ag/api/wallets/{user}/activity — Full event history (otp, policy, wallet.action, x402.authorization.signed)","auth_model":"Email OTP → Bearer token (mf_... prefix); policy-controlled per-tx","sdk_languages":"REST (curl); skill.json/skill.md metadata packages; version 0.2.0","pricing_model":"Free wallet provisioning; network fees apply per transaction; referral/airdrop points system","status":"active","docs_url":"https://frames.ag/skill.md","announcement_url":"https://frames.ag/skill.json","last_verified_at":"2026-05-05T00:00:00Z"},"evidence":{"name":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"vendor":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"category":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"chains":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"payment_protocols":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-05T00:00:00Z","title":"AgentWallet skill.md v0.2.0","excerpt":"version: 0.2.0 — AgentWallet provides server wallets for AI agents. x402 (v1+v2) and MPP (Machine Payments Protocol/Tempo) supported. x402/fetch auto-detects both protocols."},"api_base_url":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"services":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-05T00:00:00Z","title":"AgentWallet skill.md v0.2.0","excerpt":"version: 0.2.0 — AgentWallet provides server wallets for AI agents. x402 (v1+v2) and MPP (Machine Payments Protocol/Tempo) supported. x402/fetch auto-detects both protocols."},"auth_model":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"sdk_languages":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-05T00:00:00Z","title":"AgentWallet skill.md v0.2.0","excerpt":"version: 0.2.0 — AgentWallet provides server wallets for AI agents. x402 (v1+v2) and MPP (Machine Payments Protocol/Tempo) supported. x402/fetch auto-detects both protocols."},"pricing_model":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"status":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"docs_url":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"announcement_url":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-04T00:00:00Z","title":"AgentWallet Skill — frames.ag","excerpt":"AgentWallet provides server wallets for AI agents. Base URL: https://frames.ag/api/v1. EVM (Base, Ethereum, Optimism, Polygon, Arbitrum, BSC, Gnosis) and Solana. Policy-controlled, server-side signing."},"last_verified_at":{"url":"https://frames.ag/skill.md","retrieved_at":"2026-05-05T00:00:00Z","title":"AgentWallet skill.md v0.2.0","excerpt":"version: 0.2.0 — AgentWallet provides server wallets for AI agents. x402 (v1+v2) and MPP (Machine Payments Protocol/Tempo) supported. x402/fetch auto-detects both protocols."}}},{"entity_id":"frames-engineering-registry","fields":{"name":"Frames Registry","vendor":"frames-engineering","category":"registry","chains":"Base (eip155:8453), Base Sepolia (eip155:84532), Solana mainnet, Solana devnet","payment_protocols":"x402 (v2)","api_base_url":"https://registry.frames.ag","registry_endpoint":"https://registry.frames.ag/api/services","services":"twitter — https://registry.frames.ag/api/service/twitter — Full Twitter/X API: users, tweets, search, communities, spaces, trends (v3.0.0)\nai-gen — https://registry.frames.ag/api/service/ai-gen — AI image/video/audio/3D generation via 15+ models (v2.0.0)\nexa — https://registry.frames.ag/api/service/exa — Semantic web search, find-similar, contents, AI answer (v1.0.0)\njupiter — https://registry.frames.ag/api/service/jupiter — Solana swap, price, tokens, portfolio (v1.0.0)\nagentmail — https://registry.frames.ag/api/service/agentmail — Agent email: create inbox, send, list messages/threads (v1.0.0)\ncoingecko — https://registry.frames.ag/api/service/coingecko — Crypto prices, market data, trending, search (v1.0.0)\nnear-intents — https://registry.frames.ag/api/service/near-intents — Cross-chain swap quote via NEAR 1Click (v1.0.0)\nwordspace — https://registry.frames.ag/api/service/wordspace — AI agent loop with sandboxed execution (v1.0.0)\nopenrouter — https://registry.frames.ag/api/service/openrouter — 300+ LLM models text generation via OpenRouter (v1.1.0)\ntest — https://registry.frames.ag/api/service/test — x402 payment flow test on testnets (v1.0.0)","auth_model":"x402 pay-per-call; no API key required; USDC or USDT or CASH accepted","sdk_languages":"REST; compatible with AgentWallet x402/fetch proxy","pricing_model":"Pay-per-call via x402; $0.001–$2 per request depending on service","status":"active","docs_url":"https://registry.frames.ag/docs","announcement_url":"https://registry.frames.ag/api","last_verified_at":"2026-05-04T12:30:00Z"},"evidence":{"name":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"vendor":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"category":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"chains":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"payment_protocols":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"api_base_url":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"registry_endpoint":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"services":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T12:30:00Z","title":"Frames Registry – Services API","excerpt":"10 services confirmed live: twitter (v3.0.0), ai-gen (v2.0.0), test (v1.0.0), exa, wordspace, openrouter (v1.1.0), jupiter, near-intents, agentmail, coingecko. All endpoints healthy."},"auth_model":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"sdk_languages":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"pricing_model":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"status":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"docs_url":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"announcement_url":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T00:00:00Z","title":"Frames Registry — /api/services","excerpt":"Pay-per-call API gateway for AI agents. 10 services available via x402. Base: https://registry.frames.ag"},"last_verified_at":{"url":"https://registry.frames.ag/api/services","retrieved_at":"2026-05-04T12:30:00Z","title":"Frames Registry – Services API","excerpt":"10 services confirmed live: twitter (v3.0.0), ai-gen (v2.0.0), test (v1.0.0), exa, wordspace, openrouter (v1.1.0), jupiter, near-intents, agentmail, coingecko. All endpoints healthy."}}},{"entity_id":"skyfire","fields":{"name":"Skyfire","vendor":"Skyfire","category":"wallet","chains":"Not publicly disclosed (managed wallets; USD/stablecoin settlement)","payment_protocols":"KYAPay tokens (JWT-based): kya (identity), pay (payment), kya-pay (combined identity + payment)","api_base_url":"https://api.skyfire.xyz","registry_endpoint":"https://docs.skyfire.xyz/docs/service-discovery","services":"buyer token mint — https://api.skyfire.xyz (buyer agent API) — Generate kya/pay/kya-pay tokens for seller API access\nseller token verify — https://api.skyfire.xyz (seller agent API) — Verify and charge incoming buyer tokens via JWKS\nservice directory — https://app.skyfire.xyz (Skyfire Dashboard) — Searchable registry of verified sellers with service IDs, pricing, endpoints, and identity requirements\nwallet funding — https://docs.skyfire.xyz/docs/wallet-funding — Fund buyer wallet to transact with sellers\nKYA verification — https://docs.skyfire.xyz/docs/kyapay-tokens — Identity verification tiers (none/individual/business) for token creation","auth_model":"Email-verified user accounts; JWT KYAPay tokens for agent-to-service auth; identity tiers (none/individual/business)","sdk_languages":"REST API; standard JWKS verification libraries","pricing_model":"Managed wallet; settlement between buyer and seller wallets on successful service delivery","status":"active","docs_url":"https://docs.skyfire.xyz/docs/developer-documentation","announcement_url":"https://docs.skyfire.xyz/docs/developer-documentation","last_verified_at":"2026-05-04T14:00:00Z"},"evidence":{"name":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"vendor":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"category":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"chains":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"payment_protocols":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"api_base_url":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"registry_endpoint":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"services":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T14:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Identity and Payments for AI. Each user manages one or more agent accounts (Buyer or Seller). Buyers interact with seller websites, APIs, MCP servers, and services by presenting Skyfire tokens: kya (identity), pay (payment), kya-pay (combined identity and payment)."},"auth_model":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"sdk_languages":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"pricing_model":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"status":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T14:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Identity and Payments for AI. Each user manages one or more agent accounts (Buyer or Seller). Buyers interact with seller websites, APIs, MCP servers, and services by presenting Skyfire tokens: kya (identity), pay (payment), kya-pay (combined identity and payment)."},"docs_url":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T14:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Identity and Payments for AI. Each user manages one or more agent accounts (Buyer or Seller). Buyers interact with seller websites, APIs, MCP servers, and services by presenting Skyfire tokens: kya (identity), pay (payment), kya-pay (combined identity and payment)."},"announcement_url":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T00:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Skyfire enables programmatic interaction between Buyers and Sellers using a token-based identity and payment protocol. KYA+PAY tokens. Managed wallets. Live implementations at Dappier, BuildShip, Apify."},"last_verified_at":{"url":"https://docs.skyfire.xyz/docs/developer-documentation","retrieved_at":"2026-05-04T14:00:00Z","title":"Skyfire Developer Documentation","excerpt":"Identity and Payments for AI. Each user manages one or more agent accounts (Buyer or Seller). Buyers interact with seller websites, APIs, MCP servers, and services by presenting Skyfire tokens: kya (identity), pay (payment), kya-pay (combined identity and payment)."}}},{"entity_id":"stripe-machine-payments","fields":{"name":"Stripe Machine Payments (x402)","vendor":"Stripe","category":"payment-protocol","chains":"Base (USDC), Solana (USDC), Tempo (USDC); USDC settlement only; US businesses only for stablecoin acceptance","payment_protocols":"x402 (HTTP 402-based machine-to-machine payments); Stripe PaymentIntents with crypto deposit mode (2026-03-04.preview API)","api_base_url":"https://api.stripe.com","services":"machine payments (x402) — https://docs.stripe.com/payments/machine/x402 — x402 middleware for any HTTP endpoint; Stripe handles crypto deposit addresses via PaymentIntents and auto-captures on settlement\npurl CLI — https://github.com/stripe/purl — Command-line tool to test x402-protected endpoints; pays 402 responses automatically\n@x402/hono paymentMiddleware — npm:@x402/hono — Server-side paywall middleware integrated with Stripe for PaymentIntent creation","auth_model":"Stripe Secret API Key; API version 2026-03-04.preview required; stablecoin payment method must be enabled via Stripe Dashboard","sdk_languages":"Node.js (@x402/hono, @x402/express); purl CLI; REST API","pricing_model":"Stripe processing fees apply; stablecoin/crypto payment method via Dashboard; US businesses only for acceptance","status":"active","docs_url":"https://docs.stripe.com/payments/machine/x402","announcement_url":"https://docs.stripe.com/payments/machine/x402","last_verified_at":"2026-05-04T12:30:00Z"},"evidence":{"name":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"vendor":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"category":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"chains":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"payment_protocols":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"api_base_url":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"services":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"auth_model":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"sdk_languages":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"pricing_model":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"status":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"docs_url":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"announcement_url":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."},"last_verified_at":{"url":"https://docs.stripe.com/payments/machine/x402","retrieved_at":"2026-05-04T12:30:00Z","title":"Stripe – x402 Machine Payments","excerpt":"x402 is a protocol for internet payments. When a client requests a paid resource, your server returns an HTTP 402 response with payment details. The client pays, then retries the request with an authorization. Stripe handles deposit addresses and automatically captures the PaymentIntent when funds settle on-chain. Supports USDC on Base, Solana, and Tempo. API version 2026-03-04.preview required."}}},{"entity_id":"thirdweb-x402","fields":{"name":"thirdweb x402","vendor":"thirdweb","category":"hybrid","chains":"EVM chains (CAIP-2 format, e.g. eip155:1, eip155:8453); Solana (base58 addresses); supports any x402-compatible network via chainId parameter","payment_protocols":"x402 (HTTP 402-based); auto-detects and handles 402 Payment Required responses on client and server","api_base_url":"https://api.thirdweb.com","services":"x402/fetch proxy — https://api.thirdweb.com/v1/payments/x402/fetch — One-step proxy: send target URL, method, optional body; auto-detects 402, signs payment, retries; uses project default wallet or specified from address\nMCP server (x402 tools) — https://api.thirdweb.com/mcp — Remote MCP server with fetchWithPayment and listPayableServices tools; filterable by tool name via ?tools= param\nuseFetchWithPayment hook — npm:thirdweb/react — React hook wrapping x402 payment flow with built-in UI for wallet connection, funding, and error handling\nserver-side paywall — https://portal.thirdweb.com/x402/server — Add x402 paywall to any Express/Next.js/Hono endpoint; supports dynamic pricing","auth_model":"x-secret-key (backend) or x-client-id (frontend); project wallets or user/server wallets specified by from address parameter","sdk_languages":"TypeScript/JavaScript (thirdweb npm, React hooks); Python; HTTP API; LangChain/LangGraph integration via MCP","pricing_model":"thirdweb platform fees apply; no per-tx protocol fee for x402 itself; wallet and infrastructure fees per thirdweb pricing","status":"active","docs_url":"https://portal.thirdweb.com/x402","announcement_url":"https://portal.thirdweb.com/x402/agents","last_verified_at":"2026-05-04T12:30:00Z"},"evidence":{"name":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"vendor":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"category":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"chains":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"payment_protocols":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"api_base_url":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"services":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"auth_model":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"sdk_languages":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"pricing_model":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"status":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"docs_url":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"announcement_url":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."},"last_verified_at":{"url":"https://portal.thirdweb.com/x402/agents","retrieved_at":"2026-05-04T12:30:00Z","title":"thirdweb – x402 Agents","excerpt":"Easily create AI agents that can pay for any x402-compatible API calls. Use the remote MCP server or the /v1/payments/x402/fetch endpoint. The MCP server comes with fetchWithPayment and listPayableServices tools. Client-side: useFetchWithPayment hook with built-in UI. Server-side: add paywall to any endpoint. Supports EVM and Solana chains."}}},{"entity_id":"vercel-x402","fields":{"name":"Vercel x402-mcp","vendor":"Vercel","category":"payment-protocol","chains":"Base (USDC primary); any x402-compatible network","payment_protocols":"x402 (HTTP 402-based); exact scheme (USDC on Base)","api_base_url":"https://vercel.com/ai-gateway","services":"x402-mcp paidTool MCP server — npm:x402-mcp — createPaidMcpHandler wraps MCP server to define paidTool() calls with per-call prices; withPayment client wraps MCP client to auto-pay 402 responses\npaymentMiddleware (Next.js) — npm:x402-next — Protects Next.js API routes with x402 paywall in one middleware declaration\nx402 AI Starter template — https://vercel.com/templates/ai/x402-ai-starter — One-click Next.js + AI SDK + x402 template with paid API routes, paid MCP tools, and crawl paywall","auth_model":"Coinbase CDP server-managed wallets (CDP_API_KEY_ID, CDP_API_KEY_SECRET, CDP_WALLET_SECRET); x402 permissionless client-side signing","sdk_languages":"TypeScript/JavaScript (npm:x402-mcp, npm:x402-next, npm:x402-fetch); Vercel AI SDK integration","pricing_model":"Open-source packages; x402 no protocol fee; Vercel platform fees apply; per-call prices set by deployer","status":"active","docs_url":"https://vercel.com/blog/introducing-x402-mcp-open-protocol-payments-for-mcp-tools","announcement_url":"https://vercel.com/blog/introducing-x402-mcp-open-protocol-payments-for-mcp-tools","last_verified_at":"2026-05-05T00:00:00Z"},"evidence":{"name":{"url":"https://vercel.com/blog/introducing-x402-mcp-open-protocol-payments-for-mcp-tools","retrieved_at":"2026-05-05T00:00:00Z","title":"Introducing x402-mcp: Open protocol payments for MCP tools","excerpt":"We built x402-mcp to integrate x402 payments with Model Context Protocol (MCP) servers and the Vercel AI SDK. 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