OpenChainGraph Suite · ART-217 · US Mortgage Compliance

TRID APR Accuracy Verifier

TRID APR accuracy check per Reg Z §1026.22(a). Verifies disclosed APR against actual APR within 1/8 percentage point tolerance for regular transactions or 1/4 pp for irregular transactions. APR understatement is a TILA violation; overstatement within tolerance is not.

Reg Z §1026.22(a) TRID APR 1/8 pp Tolerance Irregular Support
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
APR Comparison
APR as disclosed on the Closing Disclosure (or revised LE).
APR computed per Reg Z Appendix J (use ART-215 output).
Transaction Type (for tolerance determination)
Accuracy Detail
Execution Hash (SHA-256)

Ask your agent

Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

Run the AINumbers MCP tool `verify_trid_apr_accuracy`. Task: TRID APR accuracy check per Reg Z §1026.22(a).
Call it with arguments: {"policy_parameters":{"disclosed_apr_pct":6.875,"actual_apr_pct":6.82}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-217-trid-apr-accuracy.html#p=v1.H4sIAAAAAAAA_wExAM7_eyJkaXNjbG9zZWRfYXByX3BjdCI6Ni44NzUsImFjdHVhbF9hcHJfcGN0Ijo2LjgyfXC48M0xAAAA