Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
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
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
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