A directory of services AI agents can actually use — APIs, tools and merchants with machine-readable interfaces and agent payment protocols. Badges are probe-backed, never self-asserted.
| Score |
|---|
 Agentic Commerce Protocol (ACP)OpenAPIllms.txtACP Open spec from OpenAI and Stripe for agent-initiated checkout — product feeds, checkout endpoints, and scoped delegated payment tokens with the merchant staying merchant of record | Payments | ||
 Coinbase Developer PlatformMCPOpenAPIllms.txtx402 Server wallets, AgentKit, and the public x402 facilitator agents use to sign and settle stablecoin payments | Payments | ||
 Machine Payments Protocol (MPP)MCPOpenAPIllms.txtMPP Open HTTP payment standard from Stripe and Tempo covering one-shot, recurring, and streaming agent payments across cards, stablecoins, and Lightning | Payments | ||
 Stripe Agentic Commerce SuiteMCPOpenAPIllms.txtACPAP2MPPUCP Shared payment tokens, agentic network tokens, and ACP support so businesses can sell through AI agents | Payments | ||
 Stripe Issuing for AgentsMCPOpenAPIllms.txtMPP Issue virtual cards agents can spend on, with real-time authorization decisions, per-card spend controls, and full transaction visibility | Payments | ||
 Universal Commerce Protocol (UCP)OpenAPIllms.txtUCP Open commerce standard from Google and Shopify for agentic shopping journeys across retailers, pairing with AP2 for the payment leg | Payments | ||
 x402OpenAPIllms.txtx402 Open HTTP 402 standard for per-request stablecoin payments, now at v2 and governed by the x402 Foundation | Payments | ||
 Agent Payments Protocol (AP2)llms.txtAP2x402 Open protocol using signed mandates so agents can transact within user-defined limits, with x402 and card rails | Payments | ||
 ATXPMCPOpenAPIllms.txtx402 Agent payments platform wrapping x402 wallets, per-call billing, and a hosted tool marketplace agents can spend against | Payments | ||
 CircleMCPOpenAPIllms.txtx402 USDC issuance, programmable wallets, and Circle Payments for agent-to-agent settlement | Payments | ||
 CrossmintMCPOpenAPIx402 Agent wallets, on-ramps, and headless checkout across stablecoin (x402) and card rails | Payments | ||
 FewsatsMCPOpenAPIL402x402 Wallet and MCP server that lets an agent pay L402 and x402 paywalls without a human in the loop | Payments | ||
 L402OpenAPIllms.txtL402 HTTP 402 payment standard over Lightning — macaroon-based credentials for pay-per-request access, with the Aperture reverse proxy as reference implementation | Payments | ||
 LithicOpenAPI Documentation-first card issuing API for running your own virtual card program, including cards handed to agents | Payments | ||
 MarqetaMCPOpenAPI Enterprise card issuing platform with agentic payment controls and an MCP server over the issuing APIs | Payments | ||
 Mastercard Agent PayOpenAPIllms.txtAgent PayMPP Agentic tokens and Agent Pay registration so verified agents can initiate card payments for a consumer | Payments | ||
 Mercury Agent CardsOpenAPI Virtual corporate cards created by a human and spent autonomously by an agent, with merchant and category limits | Payments | ||
 NeverminedMCPOpenAPIllms.txtx402 Metering, authorization, and settlement for agent APIs, including an x402 facilitator and credit-based plans | Payments | ||
 PayPal Agentic CommerceMCPOpenAPIllms.txtACP Agent-ready checkout and payouts, an ACP payment provider, plus a remote MCP server over the PayPal APIs | Payments | ||
 PlaidMCPOpenAPIllms.txt Bank account data, balances, and payment initiation, with a remote MCP server over the dashboard APIs | Payments |
Same query as JSON: /api/v1/services?category=pay