402.markets

API marketplace powered by Lightning Network and Cashu tokens

Pay-per-requestNo subscriptionsInstant paymentsCensorship-resistant

L402

Lightning API keys combine Macaroons with Lightning Network payments, enabling secure pay-per-request authentication. Macaroons provide bearer tokens that can be verified cryptographically without server lookups.

X-Cashu

HTTP 402 Payment Required responses with X-Cashu headers enable Cashu token payments. Servers respond with payment requests containing amount, unit, accepted mints, and locking conditions.

OpenAPI 3.0 Standards

All APIs follow OpenAPI 3.0 specifications for consistent documentation, validation, and integration. Standardized schemas ensure seamless developer experience across different API providers.

Nostr Protocol Storage

API metadata and discovery information stored on Nostr protocol for censorship-resistant, decentralized access. No central authority controls API listings or availability.

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