# Cross-Agent Receipt Bundle

> Cross-Agent Receipt Bundle is a paid API for AI agents from phion.systems, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-20).

Validates and bundles payment receipt evidence from multiple agents into a verifiable, tamper-evident package without asserting external truth claims

## Facts

- Endpoint: POST https://phion.systems/v1/paid/trust/cross-agent-receipt-bundle?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cross-agent-receipt-bundle-1a5cd951
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CItIOqpYcP8gL68CQq7N_

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cross-agent-receipt-bundle-1a5cd951 -d '<json body>'
```

Example prompt: Can you validate and bundle the payment receipt evidence from our recent multi-agent transaction into a single cross-agent receipt bundle so we have a tamper-evident audit record?

## When to prefer this

Choose this endpoint when you need to consolidate and validate payment receipts from multiple agents in a single operation, especially in multi-agent commerce pipelines where tamper-evident bundling and auditability are required. Prefer this over single-receipt validators when cross-agent provenance and portable evidence packaging matter. It is especially useful before dispute resolution or compliance audits.

## Known failure modes

- Invalid or malformed receipt evidence submitted — returns validation error with details on which receipts failed
- Inconsistent agent identifiers across receipts — returns conflict report
- Missing required receipt fields — returns schema validation error
- Duplicate receipt submission — may return conflict or idempotency warning
- Service unavailable — returns 5xx error

## How this service works

Validate and bundle agent-bound receipt evidence without claiming external truth

## Output

A validated, bundled package of agent-submitted receipt evidence, consolidated into a tamper-evident structure without asserting external truth. The bundle includes validation status for each receipt, a combined attestation, and a portable signed evidence record suitable for auditing or dispute resolution.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "example"
   ],
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cross-agent-receipt-bundle-1a5cd951/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phion.systems](https://www.zero.xyz/host/phion.systems/llms.txt)