---
title: "Chargeback Evidence Bundle Composer"
method: POST
path: "/v1/tools/compose_chargeback_evidence_bundle"
tags: ["chargeback", "dispute", "agent-payment", "evidence-bundle", "checkrun", "ap2", "x402", "adjudication", "zero-PII"]
---

# Chargeback Evidence Bundle Composer

`POST /v1/tools/compose_chargeback_evidence_bundle`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/compose_chargeback_evidence_bundle`
- Auth: none declared

CHECKRUN definition assembling an agent-transaction dispute pack: mandate/receipt evidence (AP2 mandate chain, AP2 receipt), payment-protocol evidence (x402 payload, A2A x402 extension, batch settlement reconciliation), and session + delivery evidence (trace spans, delivery attestation). Produces a hash-chained, Merkle-rooted adjudication bundle prepared for a payment-network dispute/adjudication review. Verify-only.

**Tool URL:** https://ainumbers.co/tools/567-chargeback-evidence-bundle-composer.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `evidence` unknown[]: Per-step attestation notes or sha256 evidence digests
    - unknown

## Response `200`

Successful tool execution result

- object
  - `adjudication_bundle` object: definition, definition_digest, run_receipt (Merkle root over 8 step receipts), step_receipts, coverage_summary

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)