402index

Plugs Claude into 402index.io's registry of 15,000+ paid API endpoints that speak HTTP 402 payment protocols. Exposes semantic search across services indexed from the x402 Bazaar, Satring, l402apps, and direct submissions, with filters for protocol type (L402/Lightning, x402/stablecoins, MPP/Stripe), health status, and verification. Returns endpoint URLs, pricing details, and payment requirements. Useful when you're building AI agents that need to discover and call paid APIs without hardcoding providers, or when you want Claude to find a weather API, AI model endpoint, or data service that accepts machine payments. The directory is protocol-agnostic and community-maintained, so you get broad coverage across the HTTP 402 ecosystem in a single search interface.