Pay per completed check
$0.05 per compatibility, parts or fit check on the paid endpoints. You're never charged for errors or "need more detail" answers, and the price doesn't depend on whether the answer is yes or no. The free endpoints stay free during early access.
Prepaid credits
For developers: buy credits with a card, and your agents spend them through an API key. No crypto wallet needed.
Coming soon
Card payments aren't switched on yet. Join the pilot to be told first.
Agent-native payments (x402)
For agents with a wallet: call a paid endpoint, get 402 with a PAYMENT-REQUIRED header, pay in USDC and retry with PAYMENT-SIGNATURE. Works over MCP too (_meta["x402/payment"]).
Coming soon
What you get for each paid check
- The same evidence-backed verdict as the free endpoint, with sources and their dates.
- A signed receipt (EdDSA JWS) with a valid-until date. It proves what we said and when, not that it's right.
- Higher, predictable limits that don't count against the free launch allowance.