# Agent Trust Score — Single Base Wallet

> Agent Trust Score — Single Base Wallet is a paid API for AI agents from agent-trust-api-production.up.railway.app, paid per call via x402, $0.030000/call, status unknown (last checked 2026-09-16).

Returns a trust score (0–100), letter grade (A–F), tier, scam flag, and x402 ecosystem participation status for a given Base wallet address.

## Facts

- Endpoint: GET https://agent-trust-api-production.up.railway.app/score/0xa2c36B289198734a9a5c9e4F7e31102d27eDf8e7
- Price: $0.030000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-trust-score-single-base-wallet-1659d4df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cncgRRpkOONA73YvY2mEL

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 agent-trust-score-single-base-wallet-1659d4df
```

Example prompt: What's the trust score and grade for the Base wallet 0xa2c36B289198734a9a5c9e4F7e31102d27eDf8e7? I want to know if it's safe to deal with and whether it's an active x402 participant.

## When to prefer this

Use this endpoint when you need a quick, single-wallet reputation check on Base before executing an on-chain transaction, paying an agent, or accepting a counterparty. Prefer this over the batch endpoint when checking a single address to minimize latency and cost ($0.03 USDC per call). Prefer over manual on-chain analysis when you need a pre-computed risk signal with x402 ecosystem context.

## Known failure modes

- Invalid or malformed wallet address returns an error response
- Non-Base-network addresses may return unreliable or empty scores
- Cached results may be stale for very recently active wallets
- Service unavailability returns HTTP 5xx

## How this service works

Agent trust score (0-100) for any Base wallet. Returns score, grade (A-F), tier, and x402 ecosystem participation status. Useful for vetting counterparties before on-chain deals.

## Output

Returns a JSON object with: numeric trust score (0–100), letter grade (A–F), tier label (e.g. 'Trusted'), isScam boolean, x402User and x402Provider booleans indicating ecosystem participation, the wallet address echoed back, scoredAt ISO timestamp, and a cached boolean indicating if the result was served from cache.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "tier",
  "grade",
  "score",
  "cached",
  "isScam",
  "address",
  "scoredAt",
  "x402User",
  "x402Provider"
 ],
 "properties": {
  "tier": {
   "type": "string"
  },
  "grade": {
   "type": "string"
  },
  "score": {
   "type": "number"
  },
  "cached": {
   "type": "boolean"
  },
  "isScam": {
   "type": "boolean"
  },
  "address": {
   "type": "string"
  },
  "scoredAt": {
   "type": "string"
  },
  "x402User": {
   "type": "boolean"
  },
  "x402Provider": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-trust-score-single-base-wallet-1659d4df/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-trust-api-production.up.railway.app](https://www.zero.xyz/host/agent-trust-api-production.up.railway.app/llms.txt)