Start from the contract
Everything an integrator needs is public. There is no sales gate between an agent and a working call.
The differentiator
Most families expose a free verification route and a published public key, so a third party can independently check an attestation — without paying, without an account, and without asking us.
101 routes across 7 families. A free verify route and a published public key sit alongside the pay-per-call routes, so a receipt can be re-checked by anyone, forever. Attestations are signed with Ed25519.
Base URLhttps://x402.synthexforge.com
OpenAPI spechttps://x402.synthexforge.com/openapi.json
Attestation public key
Ed25519 · GET /v1/receipts/public-key
GET /openapi.json200 the contract
GET /health200 {"status":"ok"}
POST /v1/receipts/mint402 PAYMENT-REQUIRED
GET /v1/receipts/verifyfree · no key
Free verification, by family