Pay per call

Every docs page as Markdown: /docs/llms.txt

Call any endpoint without an API key: pay $0.004 a call in USDC on Base with x402.

• Call an endpoint with no apiKey. It answers 402 with its price in the PAYMENT-REQUIRED header.
• An x402 client signs a USDC payment from your wallet and sends the call again with it in PAYMENT-SIGNATURE.
• The answer is the same as with a key. The payment settles only when the call succeeds, and the receipt comes back in PAYMENT-RESPONSE.
• Your account endpoints need an API key.
• Clients for TypeScript, Go and more are on x402.org. Every endpoint is also listed in the x402 Bazaar, where agents find paid APIs.

Updated 2026-11-12 15:52 UTC