Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
Agentic Commerce Protocol (ACP) 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 OpenAPIllms.txt	acp+5	OpenAPI+1	ACP	none, Payments	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
Machine Payments Protocol (MPP) Open HTTP payment standard from Stripe and Tempo covering one-shot, recurring, and streaming agent payments across cards, stablecoins, and Lightning MCPOpenAPIllms.txt	mpp+5	MCP+2	MPP	api-key, Payments	5/5
Stripe Agentic Commerce Suite Shared payment tokens, agentic network tokens, and ACP support so businesses can sell through AI agents MCPOpenAPIllms.txt	agentic-commerce+4	MCP+2	ACP+3	api-key, Payments	5/5
Stripe Issuing for Agents Issue virtual cards agents can spend on, with real-time authorization decisions, per-card spend controls, and full transaction visibility MCPOpenAPIllms.txt	virtual-cards+4	MCP+2	MPP	api-key, Payments	5/5
Universal Commerce Protocol (UCP) Open commerce standard from Google and Shopify for agentic shopping journeys across retailers, pairing with AP2 for the payment leg OpenAPIllms.txt	ucp+5	OpenAPI+1	UCP	none, Payments	5/5
x402 Open HTTP 402 standard for per-request stablecoin payments, now at v2 and governed by the x402 Foundation OpenAPIllms.txt	x402+4	OpenAPI+1	x402	x402-none, Payments	5/5
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
Circle USDC issuance, programmable wallets, and Circle Payments for agent-to-agent settlement MCPOpenAPIllms.txt	usdc+3	MCP+2	x402	api-key, Payments	4/5
Crossmint Agent wallets, on-ramps, and headless checkout across stablecoin (x402) and card rails MCPOpenAPI	agent-wallets+4	MCP+1	x402	wallet, Payments	4/5
Fewsats Wallet and MCP server that lets an agent pay L402 and x402 paywalls without a human in the loop MCPOpenAPI	l402+4	MCP+1	L402+1	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
Lithic Documentation-first card issuing API for running your own virtual card program, including cards handed to agents OpenAPI	virtual-cards+3	OpenAPI	—	api-key, Payments	4/5
Marqeta Enterprise card issuing platform with agentic payment controls and an MCP server over the issuing APIs MCPOpenAPI	virtual-cards+4	MCP+1	—	api-key, Payments	4/5
Mastercard Agent Pay Agentic tokens and Agent Pay registration so verified agents can initiate card payments for a consumer OpenAPIllms.txt	network-tokens+3	OpenAPI+1	Agent Pay+1	api-key, Payments	4/5
Mercury Agent Cards Virtual corporate cards created by a human and spent autonomously by an agent, with merchant and category limits OpenAPI	virtual-cards+3	OpenAPI	—	api-key, Payments	4/5
Nevermined Metering, authorization, and settlement for agent APIs, including an x402 facilitator and credit-based plans MCPOpenAPIllms.txt	monetization+4	MCP+2	x402	api-key, Payments	4/5
PayPal Agentic Commerce Agent-ready checkout and payouts, an ACP payment provider, plus a remote MCP server over the PayPal APIs MCPOpenAPIllms.txt	payments+4	MCP+2	ACP	m2m-oauth, Payments	4/5
Plaid Bank account data, balances, and payment initiation, with a remote MCP server over the dashboard APIs MCPOpenAPIllms.txt	banking+3	MCP+2	—	api-key, Payments	4/5
Ramp Scoped virtual cards external agents can spend within company policy, plus an MCP server over spend data MCPOpenAPI	virtual-cards+4	MCP+1	MPP	m2m-oauth, Payments	4/5