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Synthex Forge — x402 Paid Agent Services

Verify Signature

verify_signature
Read-onlyIdempotent

Verify a signed receipt you already hold — FREE, no payment, no network call to us. Recomputes the canonical JSON digest and checks the Ed25519 signature against the published public key, so you can confirm a receipt's authenticity before you act on it.

VALUE: Free, because verifying a receipt you already paid for must never cost a second payment.

PRICE: FREE — no payment required.

Call it directly. No payment, no headers, no account.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bodyYesThe exact JSON body that was signed.
sha256YesThe sha256 hex digest of the canonical body.
signatureYesThe base64 Ed25519 signature.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changed
    • changedInput schema / properties / body / description
      Previous value: -"The canonical signed body, exactly as received."New value: +"The exact JSON body that was signed."
    • changedInput schema / properties / sha256 / description
      Previous value: -"The declared SHA-256 hex digest of the canonical body."New value: +"The sha256 hex digest of the canonical body."
    • changedInput schema / properties / signature / description
      Previous value: -"The Ed25519 signature hex."New value: +"The base64 Ed25519 signature."
  2. First observed

TDQS

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