Any API becomes a Lightning toll booth in one line. L402 middleware for Express, Hono, Deno, Bun, and Workers.
402 client MCP - AI agents discover, pay for, and consume L402 + x402 APIs
Lightning-paid AI inference - monetise any OpenAI-compatible endpoint in 30 seconds
Announce HTTP 402 services on Nostr for decentralised discovery. Kind 31402 parameterised replaceable events.