Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
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
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
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
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
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
Zuplo API gateway that puts an x402 or key-based paywall in front of any endpoint agents call MCPOpenAPIllms.txt	api-gateway+4	MCP+2	x402	api-key, Payments	4/5