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.
| Category |
|---|
| Score |
|---|
 Coinbase Developer PlatformMCPOpenAPIllms.txtx402 Server wallets, AgentKit, and the public x402 facilitator agents use to sign and settle stablecoin payments | 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 | ||
 NeverminedMCPOpenAPIllms.txtx402 Metering, authorization, and settlement for agent APIs, including an x402 facilitator and credit-based plans | Payments | ||
 SkyfireMCPOpenAPIllms.txtx402 KYA agent identity plus wallets and pay-per-call settlement so services can charge unknown agents safely | Payments | ||
 ZuploMCPOpenAPIllms.txtx402 API gateway that puts an x402 or key-based paywall in front of any endpoint agents call | Payments |
Same query as JSON: /api/v1/services?category=pay&protocol=x402&has_llms_txt=true