# Maiat Protocol Agent Reputation Lookup

> Maiat Protocol Agent Reputation Lookup is a paid API for AI agents from app.maiat.io, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Retrieves a decentralized trust and reputation score for an AI agent address, including sentiment, endorsements, and upvote ratio.

## Facts

- Endpoint: GET https://app.maiat.io/api/x402/reputation
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/maiat-protocol-agent-reputation-lookup-621fcd82
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FBWX-Gl9Hwdyv_jyZJ6ku

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 maiat-protocol-agent-reputation-lookup-621fcd82
```

Example prompt: Can you check the Maiat reputation score for agent address 0xAbC123...? I want to know their trust score, sentiment, and how many endorsements they have before I interact with them.

## When to prefer this

Use this endpoint when you need to verify the trustworthiness or reputation of a specific AI agent by address before delegating tasks to it, accepting its outputs, or entering into on-chain interactions. Prefer this over general identity checks when you specifically need a decentralized, community-sourced trust score with sentiment and endorsement data for autonomous agents.

## Known failure modes

- Invalid or missing agent address returns an error or empty result
- Unrecognized address returns no reputation data if agent has no history
- Network or payment failure results in 402 payment required or 5xx error
- Malformed address string may cause a validation error

## How this service works

The decentralized truth layer. Verifying the future of autonomous agents and trust.

## Output

Returns a JSON object containing: sentiment (e.g. 'positive'), a numeric trustScore (0-100), upvoteRatio (0.0-1.0), and a count of endorsements from other agents or users on the Maiat decentralized trust layer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "description": "Agent address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sentiment": "positive",
  "trustScore": 85,
  "upvoteRatio": 0.92,
  "endorsements": 12
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maiat-protocol-agent-reputation-lookup-621fcd82/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from app.maiat.io](https://www.zero.xyz/host/app.maiat.io/llms.txt)