AFFIXIO
Payment consent
Agent payment consent verification
Payment consent for agents must be machine-checkable. AffixIO turns consent into a verifiable boundary outcome that payment orchestrators can gate on, without copying payer identity into every downstream vendor.
Definition
Agent payment consent verification returns a signed allow or deny that consent exists for an agent-initiated payment under scoped policy.
Field note. Prompt transcripts are not consent receipts. Your dispute team needs proofs verifiers can check without raw PII.
Consent as a boundary outcome
AffixIO verifies consent as allow or deny at issue and verify endpoints via REST or SDK. QR presentation is available for offline edges where the payment or ticket gate cannot rely on a live central lookup.
The verifier does not need the underlying identity record. It needs a signature it can check, policy binding it can evaluate, and an audit reference it can retain.
Fitting existing payment orchestration
Place verify beside authorisation in your orchestrator. On allow, continue to capture. On deny, stop and surface a clear reason code to support. Persist the Merkle reference next to the payment intent ID.
This keeps AffixIO in the authorisation path, not as a parallel logging afterthought.
Boundary hooks for agent payment consent proofs
Wire AffixIO verify immediately before the boundary where agent payment consent proofs applies: checkout authorisation, MCP tool invocation, age gate, or offline scan. Issue proofs when policy is satisfied. Present at the edge. Gate on signed allow or deny.
Train support on deny retrieval: Merkle ref lookup should not require engineering access. Document which circuit version was active when the proof was issued.
Operational friction
Consent buried in product flows
Many stacks record consent as a boolean in a CRM. Payment rails need something they can verify independently at authorisation time.
CRM flags are not cryptographic
A database field is mutable and not independently checkable by a merchant or PSP.
Scope mismatch
Broad platform consent does not equal consent for a specific amount or merchant.
PII pressure
Proving consent by shipping identity files to every rail multiplies retention risk.
Integration model
Signed consent proofs agents cannot rewrite
Agent payment consent belongs at the PSP authorisation hop, not in prompt logs. Issue short-lived proofs when user policy passes, present at verify, and mark spent on first acceptance.
Model consent scopes
Amount, merchant class, agent ID, and validity.
Issue on user grant
Mint when the user enables agent spend.
Verify on pay
Gate authorisation on the signed outcome.
Audit retention
Keep Merkle refs with payment intents.
Integration checklist
Readiness checks for agent payment consent proofs
- List consent scopes your product actually supports.
- Remove reliance on mutable CRM booleans for payment gates.
- Confirm zero PII at verifier configuration.
- Add deny reason handling for customer support.
- Prove the path in sandbox before go-live.
Legal FAQ
Questions on agent payment consent proofs
Where does verification run?
At issue and verify endpoints via REST or SDK. QR presentation is available for offline edges.
Can we use this with existing PSPs?
Yes. AffixIO sits at the permission boundary. PSPs still process payments.
What if consent expires mid-session?
Verify fails. Re-issue or re-collect consent before retrying authorisation.
Is QR required?
No. QR is for offline and edge presentation. Online checkout can use API verify only.
Adjacent topics
Pages that support agent payment consent proofs
Agentic payments
More agentic payments briefs
Build agent consent proofs in sandbox
Issue consent proofs on test policy circuits and verify them against your checkout hook.