Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
Bitrefill Gift cards, phone top-ups, and eSIMs bought over an eCommerce MCP server, payable with x402 or L402 — no account, no card on file MCPOpenAPIllms.txt	gift-cards+5	MCP+2	L402+1	wallet, Merchants	5/5
Coinbase Developer Platform Server wallets, AgentKit, and the public x402 facilitator agents use to sign and settle stablecoin payments MCPOpenAPIllms.txt	wallets+4	MCP+2	x402	wallet, Payments	5/5
Agent Payments Protocol (AP2) Open protocol using signed mandates so agents can transact within user-defined limits, with x402 and card rails llms.txt	ap2+4	llms.txt	AP2+1	wallet, Payments	4/5
ATXP Agent payments platform wrapping x402 wallets, per-call billing, and a hosted tool marketplace agents can spend against MCPOpenAPIllms.txt	x402+4	MCP+2	x402	wallet, Payments	4/5
L402 HTTP 402 payment standard over Lightning — macaroon-based credentials for pay-per-request access, with the Aperture reverse proxy as reference implementation OpenAPIllms.txt	l402+5	OpenAPI+1	L402	wallet, Payments	4/5
Skyfire KYA agent identity plus wallets and pay-per-call settlement so services can charge unknown agents safely MCPOpenAPIllms.txt	agent-identity+4	MCP+2	x402	wallet, Payments	4/5
Tempo Payments-focused L1 built for machine payments, co-author of MPP and home of the MPP service directory MCPOpenAPIllms.txt	mpp+4	MCP+2	MPP	wallet, Payments	4/5