A usable outcome
ALLOW, ALLOW_WITH_CONDITIONS, HOLD, BLOCK or UNDETERMINED, interpreted together with machine action, reasons, conditions and validity.
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RUNONPROOF PAYMENT DECISION
Should this payment
go ahead?
One structured assessment of one supplier-payment operation, with evidence, reasons, conditions and a signed Proof Capsule.
PER DECISION
0.79 USDC
Base mainnet · x402
No subscription. No recurring billing.
The fee buys the assessment, not the supplier payment.
What your workflow receives
An evidence trail
The supported source references, policy and limitations behind the result, bound to the specific operation.
A signed Proof Capsule
A verifiable delivery artifact and authenticated recovery of the same acquired result after a lost response.
Bring the payment into one context.
Submit the supplier identity and supported identifiers; invoice or obligation reference and digest; amount and currency; declared payee and destination; payment instructions; buyer context and signed mandate. The current schema defines the complete required input.
| Decision layer | What it contributes |
|---|---|
| Supplier | Resolve the declared entity against the supported country evidence. |
| Invoice or obligation | Bind the assessment to the submitted document reference and digest. |
| Payee and destination | Compare the supplied bindings and identify supported mismatches. |
| Buyer mandate | Apply the supported scope and limits. Self-service purchase authority does not prove enterprise representation. |
| Evidence and policy | Evaluate source availability, freshness and rules without treating unknowns as approval. |
VERIFY THE PROOF
Inspect the result. Verify the binding.
- Check the signature. Use the published verification keys to verify the Proof Capsule.
- Match the request. Confirm that the signed result belongs to the operation, inputs and evidence you submitted.
- Read the boundaries. Check the policy, conditions, evidence validity and limitations before using the decision.
- Preserve the original operation. Recover a lost delivery using its authenticated recovery contract. Retrieval does not refresh expired evidence.
Inspect a real archived response and verify its signature in your browser ↗. This controlled production example is expired and is not a live assessment or customer case study.
A valid signature establishes origin and integrity. It does not independently establish the truth of buyer assertions or guarantee that a supplier is safe.
Signing, verification & recovery guide ↗Useful even when the answer is “stop.”
Payee mismatch
A supported mismatch between the declared payee and destination identifies what must be resolved before proceeding.
Mandate limit exceeded
An operation outside the supported mandate limits cannot be treated as authorized just because the company exists.
Evidence unavailable
Missing or expired required evidence does not become a clean check. Follow the returned limitations and next steps.
These are explanatory scenarios, not live customer results or newly signed proofs.
Questions before integrating
Does RunOnProof send the supplier payment?
No. Payment Decision evaluates the operation. Your authorized payment workflow controls and executes the transfer.
Does it prove bank-account ownership or invoice authenticity?
No universal guarantee is made. Comparing supplied bindings is different from independently proving account ownership. A document digest binds the submitted invoice; it does not prove that the underlying obligation is genuine.
Is a HOLD free?
Not necessarily. A HOLD can be a successfully delivered paid assessment. HOLD and UNDETERMINED are not permission to pay; no universal refund is promised.
What happens if the response is lost?
Preserve the exact original request and idempotency information. Use authenticated recovery without another payment for the acquired result. Changed business inputs are a new operation.
Are US, UK and Brazil the same contract?
They belong to the same product family, with country-specific identifiers, routes, sources and coverage. UK and Brazil are implemented and awaiting production activation. Check country coverage and the live catalog.
Can you add my country?
More jurisdictions are on the roadmap. Tell us the country and payment workflow so we can assess source access, coverage and integration. Scope and timing are agreed after that assessment.