# x402 Agentic Reputation Score

> x402 Agentic Reputation Score is a paid API for AI agents from api.x402agentic.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a 0–100 reputation score for a blockchain address based on sanctions data, community reports, and vouches

## Facts

- Endpoint: GET https://api.x402agentic.ai/reputation
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agentic-reputation-score-84d10459
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ut_03UjZLvlaRq8qSZ4fU

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 x402-agentic-reputation-score-84d10459
```

Example prompt: Before I send payment to 0x4a3b...c7f2, can you check their reputation score on x402 Agentic to see if they have any sanctions flags or community reports against them?

## When to prefer this

Use this endpoint when an AI agent needs to assess the trustworthiness of a payee before executing a payment on Base USDC, especially when operating autonomously and unable to rely on human oversight. Prefer this over generic blockchain explorers when you need a combined sanctions + community signal score rather than raw transaction history.

## Known failure modes

- Address not found or never seen — may return a neutral or default score
- Invalid address format — returns 400 bad request
- Service unavailable — 5xx error
- Payment not provided — 402 payment required
- Rate limiting if too many calls in short period

## How this service works

Reputation score (0–100) for a payee from sanctions data plus community reports and vouches. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

## Output

A reputation score between 0 and 100 for the queried address, incorporating sanctions screening data, community-submitted fraud reports, and positive vouches from other users. Higher scores indicate more trustworthy payees.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "action": {
       "enum": [
        "report",
        "vouch"
       ],
       "type": "string",
       "description": "POST only: report or vouch for the address"
      },
      "reason": {
       "type": "string",
       "description": "POST only: short note (<=140 chars)"
      },
      "address": {
       "type": "string",
       "description": "Address to look up (GET) or contribute a signal for (POST)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "label": "unknown",
  "score": 50,
  "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
  "reports": 0,
  "verdict": "neutral",
  "vouches": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agentic-reputation-score-84d10459/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402agentic.ai](https://www.zero.xyz/host/api.x402agentic.ai/llms.txt)