Agentic payment verification

Verify AI agent payments before checkout.

AffixIO helps merchants, wallets, issuers and orchestration layers check whether an AI agent is recognised, acting inside user consent, and allowed to complete a transaction.

BoundProof Agent

Give every AI agent its own proof area before it acts.

Provision a persistent BoundProof Agent, check its proof allowance and give a reviewer a scoped AffixIO Hub code. Trial and paid access follow the current billing status of that agent area.

  • bpa_ agent key first. SDK key access depends on an active trial or subscription licence.
  • Authorised payment. An authorised agent can use the documented API payment flow. Human payers use hosted Stripe Checkout. Payment-provider authentication may still be required.
  • Scoped Hub view. The BP code opens only that agent's own area, usage and proof status.
Starter paid access From £19/month

Provision the agent, check its licence and allowance, then request an SDK key through the documented flow.

What this page answers

Agentic payment verification is the pre-authorisation check that connects an AI agent, a user approved intent, a payment or checkout context, and a policy decision. AffixIO returns a signed allow or deny result without becoming a PII warehouse.

AffixIO is designed for privacy-preserving verification. The customer keeps source records, account context, consent evidence and policy data. AffixIO verifies the proof path and returns signed evidence that another system can use without receiving a full identity dossier.

Verification flow

  1. 01Bound the intentCapture merchant, amount ceiling, category, expiry, user scope and checkout context.
  2. 02Prove locallyKeep account, consent and identity records on the customer host.
  3. 03Verify remotelyAffixIO checks the proof path and returns a binary outcome.
  4. 04Store evidenceRetain signed attestation and Merkle audit references for dispute and compliance review.

Direct answers

Concise answers for search, procurement, engineering and agent retrieval.

How do AI agents get verified before making payments?

The host checks agent_ref, subject_ref, consent_ref, transaction intent, nonce, timestamp and policy version. AffixIO verifies the proof path and returns a signed allow or deny outcome.

What evidence does AffixIO return?

A verification can return proof_id, decision, policy version, proof digest, ML-DSA-65 attestation and Merkle audit material.

Does AffixIO replace payment networks or SCA?

No. AffixIO is a verification and attestation layer that sits beside payment networks, wallets, issuers, acquirers and Strong Customer Authentication flows.

Free proof allocations

Agents get 150 free proofs. Humans get 100. No card required.

AI agents receive 150 free AffixIO SDK proofs on BoundProof Agent provision. Eligible new Hub account holders (humans) can claim one allocation of 100 free SDK proofs to test AffixIO verification, agentic payment checks, transaction intent proof and signed yes, no or review outcomes.

Terms: one allocation per account holder, per person or business owner. No card is required. Proofs expire after 30 days. Duplicate, shared, automated or abusive signups may be refused or removed. Agents: /boundproof/agent/. Humans: Hub onboarding with offer params.

See free proofs split