# Reputation Update Receipt

> Reputation Update Receipt is a paid API for AI agents from phion.systems, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-21).

Recommends an auditable, bounded reputation change for an agent or entity based on diverse verified outcome evidence

## Facts

- Endpoint: POST https://phion.systems/v1/paid/trust/reputation-update-receipt?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/reputation-update-receipt-d4311d11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iOz37jVVESyaQWf_zkN8R

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 reputation-update-receipt-d4311d11 -d '<json body>'
```

Example prompt: Based on the verified task outcomes and delivery evidence for agent ID agent-7f3c, generate an auditable reputation update receipt recommending a bounded trust score change, and include a summary of the evidence used.

## When to prefer this

Choose this endpoint when you need a defensible, policy-bounded reputation change recommendation backed by an auditable receipt — particularly in agentic systems where trust score manipulation is a risk and you need verifiable evidence provenance. Prefer this over raw score updates when governance, audit trails, or multi-source evidence verification is required.

## Known failure modes

- Insufficient or unverifiable outcome evidence returns an error or low-confidence recommendation
- Evidence sources not diverse enough to meet policy requirements may block or caveat the recommendation
- Missing agent identity or trust context fields result in a validation error
- Conflicting evidence across sources may produce a conservative or zero-delta recommendation
- Network or provider availability issues return a 5xx error with no receipt issued

## How this service works

Recommend an auditable bounded reputation change from diverse verified outcome evidence

## Output

Returns a structured audit receipt containing a recommended bounded reputation delta, the evidence sources that informed it, a rationale for the change, and a verifiable attestation that the recommendation was derived from diverse verified outcomes within declared policy limits.

## 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/reputation-update-receipt-d4311d11/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)