A firewall for AI agents that spend money.
Mandate Firewall is a runtime enforcement layer for AI-agent payments. It verifies user intent, merchant scope, spend limits, cart details, expiry, and payment mandates before money moves.
What is a Mandate Firewall?
A Mandate Firewall checks whether an AI agent is allowed to complete a transaction at the exact moment it tries to act.
In agentic commerce, a user may authorize an AI agent to search, compare, negotiate, book, buy, or pay. The mandate is the permission. The firewall is the enforcement layer.
It sits between the agent, the merchant, the wallet, the payment provider, and the user’s original instruction. Its job is simple: block any transaction that does not match the mandate.
Why now?
AI agents are moving from answering questions to executing tasks. They can connect to tools, workflows, checkout systems, and payment rails. That shift creates a new security question: how do we prove that an autonomous transaction still matches the user’s actual intent?
Emerging agent payment systems already use the language of mandates, credentials, and agent-led checkout. The next missing layer is runtime enforcement: a policy gate that validates each action before settlement, capture, fulfillment, or irreversible execution.
Agents act
AI agents can call tools, update carts, trigger workflows, and initiate payments.
Mandates authorize
Payment mandates express what the user allowed: amount, merchant, item, timing, and scope.
Firewalls enforce
A runtime firewall blocks replay, overspend, merchant substitution, stale carts, and policy drift.
What should a Mandate Firewall verify?
A useful Mandate Firewall does not only ask whether a payment is technically valid. It asks whether the transaction is still authorized in context.
Where it fits in the payment stack
Mandate Firewall is not a replacement for authentication, fraud detection, payment processing, or compliance. It is the runtime policy layer between agent authorization and financial execution.
Before payment
Validate mandate scope, amount, merchant, cart state, risk, and user intent before authorization or capture.
Before fulfillment
Block irreversible outcomes when the transaction no longer matches the user-approved mandate.
Before settlement
Create a verifiable enforcement record for disputes, audits, refunds, liability, and reconciliation.
Before scale
Give banks, PSPs, merchants, wallets, and agent platforms a control point for autonomous commerce.
Who needs Mandate Firewall?
Any business preparing for AI-agent checkout, delegated payments, autonomous procurement, or agent-to-merchant transactions will need a way to enforce payment intent at runtime.
Payment providers
PSPs, issuers, acquirers, wallets, and payment networks handling agent-initiated transactions.
Agent platforms
AI products that let agents browse, book, purchase, negotiate, or execute actions for users.
Merchants
Businesses that want agent-ready checkout without accepting unauthorized or ambiguous orders.
Reference architecture
A Mandate Firewall can be implemented as an API, gateway, policy engine, SDK, or verification service. The core workflow is intentionally simple.
1. Read the mandate
Parse the user’s authorized scope: merchant, amount, cart, time window, payment method, and constraints.
2. Inspect the action
Compare the agent’s attempted transaction against live context and the original instruction.
3. Enforce the decision
Allow, block, challenge, escalate, or log the action before money or goods move.
FAQ
Is Mandate Firewall the same as fraud detection?
No. Fraud detection usually evaluates transaction risk. Mandate Firewall evaluates whether an AI agent’s attempted action still matches the user’s authorized mandate.
Is this only for payments?
Payments are the clearest use case, but the same concept can apply to bookings, procurement, trading, subscriptions, contract actions, and any workflow where an agent can cause an irreversible outcome.
Does a signed mandate solve the problem by itself?
A signed mandate is evidence of permission. Runtime enforcement is still needed to check that the attempted transaction matches that permission at the moment of execution.
Is Mandate Firewall a company?
Mandate Firewall is a category concept and research hub for runtime enforcement in AI-agent payments.
Further reading
The agentic payments stack is still emerging. These public resources help explain why mandates, agent-led checkout, tool access, and runtime enforcement are becoming important.