Build a complete agentic payment policy stack in four stages — simulate a mandate, formalise it as an AP2 VDC, validate the policy JSON, and score your MCP server for production readiness. Stage outputs chain in-page: paste the key output from each tool into this page to track the chain and export a full assembly report at the end.
The Agentic Mandate Sandbox lets you simulate agent payment policies for tokenised A2A corridors — spend caps, MCC allowlists, velocity rules, expiry, and cross-currency handling. It generates AP2-compatible policy JSON that becomes the source of truth for the formal mandate in Stage 2. Run the sandbox, configure your policy parameters, and export the policy scaffold JSON.
Copy the exported policy scaffold JSON from RBE-06 and paste it here.
Use the policy scaffold from Stage 1 as the input for the Google AP2 Checkout / Payment Mandate VDC Builder. The builder formalises the mandate as a Verifiable Digital Credential — adding identity binding, credential proofs, and schema validation against the AP2 Open or Closed Wallet spec. This is the artefact your agent runtime will present when initiating a payment. Export the full mandate VDC JSON.
Copy the validated AP2 mandate VDC JSON from T285 and paste it here.
Run the AP2 mandate JSON from Stage 2 through the AP2 MCP Policy Validator. The validator checks the payload against the Unified Build Contract v1.0 schema, auto-generates MCP tool definitions from the mandate, and simulates agent ingestion of the agent_instructions array. This confirms the mandate is correctly structured for MCP agent runtime consumption before you proceed to the deployment readiness check in Stage 4. Capture the compliance score and any gap items.
Copy the validation result (compliance score, pass/fail, gap list) from T320 and paste it here.
The final gate before deployment. The MCP Developer Readiness Scorecard rolls up tool-definition quality, server.json registry-readiness, OAuth 2.1 posture, transport security, tool-poisoning hygiene, and spec-revision compliance into a graded report. Use the validated mandate from Stages 2–3 and the MCP tool definitions generated by T320 as inputs. Capture the overall readiness score and the prioritised fix list.
Copy the readiness score and fix list from T288 and paste it here.
All four stages captured. The report below consolidates your mandate simulation parameters, AP2 VDC, policy validation result, and MCP readiness score into a single timestamped record. Copy it for your data room, agent runtime configuration, or compliance documentation.