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API Information

API Name

Provider / Company

Category

Website URL

Endpoint Details

Endpoint URL The URL that returns HTTP 402 with a Lightning invoice

Endpoint Name

HTTP Method

Cost (sats) e.g., "10 sats", "10-50 sats", "~100 sats/request"

Description

Authentication (if any) Leave blank if pure L402 (no pre-registration needed)

Protocol Details

Payment Protocol

402 response includes WWW-Authenticate: L402 macaroon="...", invoice="..." header.

402 response body contains {"payment_request": "lnbc..."}.

402 response includes PAYMENT-REQUIRED header with USDC payment details.

Request Body Format For POST endpoints: describe the expected request body. Leave blank for GET.

Example Response Example of a successful response. Helps agents understand what to expect.

Contact

Your Email We'll notify you when your API is approved

Additional Notes