Post Oak Labs Showcase AP2 Agentic Payment Policy Guardrail
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T412 · AGENTIC POLICY TOOLING AP2 v1.0 PARSER MCP RUNTIME EXPORT
Agentic Payments AP2 · ISO 20022 AP2 Policy JSON

A visual guardrail for machine-readable
payment agent mandates.

Paste an AP2 JSON mandate on the left. The tool parses every constraint, renders it as a shield-gated flow chart through the agent's decision pipeline, and compiles a validated mandate ready to hand off to your MCP agent runtime. Every shield is a contract: the agent must satisfy all of them before settling a payment.

AP2 Mandate · Principal

mnd_—
Agent ID
Scope
Issued
Expires
Decision Pipeline · Guardrail Flow — shields
01
Inbound Payment Intent
user_signal · cart · context
02
Shielded Constraints
every shield must clear
03
Resolution Branch
deterministic outcomes
Outcome Tree
▲ ALLOW
All shields cleared, no escalation triggered.
→ Settle on preferred rail
→ Emit ap2.outcome.allow event
◆ REVIEW
Any REVIEW shield triggers, or amount in escalation band.
→ Hold payment, notify principal
→ Wait for human confirmation
■ DENY
Any DENY shield triggers, or ENFORCE contract violated.
→ Reject with reason code
→ Emit ap2.outcome.deny event

Compile to MCP-ready AP2 mandate

Generates a signed, version-stamped JSON envelope your MCP agent runtime can consume directly. Constraints are normalized, severity flags are resolved, and an agent_instructions block is appended in natural language so an LLM-backed agent can reason about edge cases.

Agentic Runtime

Building agentic payment infrastructure?

We design the deterministic AP2 / MCP policy layer that runtimes like this one depend on. If you're putting agents anywhere near money, let's pressure-test your mandate architecture.

Talk to our team →
Post Oak Labs · production deployments in the Caribbean & South Asia · works with a limited number of institutions at a time
POST OAK LABS · AGENTIC PAYMENT POLICY TOOLING
AP2 v1.0 · MCP 0.4 · CLIENT-SIDE · ZERO PII