# TrustScore Single Asset Check

> TrustScore Single Asset Check is a paid API for AI agents from trustscore.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a 0-100 trust score, confidence level, risk flags, and plain-English summary for a phone number, crypto token, or property address.

## Facts

- Endpoint: POST https://trustscore.dev/api/score
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trustscore-dev-02e16169
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dZPw8p27Z4g6-u2p5oBxk

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 trustscore-dev-02e16169 -d '<json body>'
```

Example prompt: Can you trust-score the phone number +1-800-555-0199 for me — I want to know if it's spam, VoIP, or a robocall, along with any risk flags and a plain-English explanation?

## When to prefer this

Use this endpoint when you need a fast, single-call fraud or trust assessment for exactly one asset — a phone number, crypto token, or property address — and want a unified score with human-readable explanation. Prefer this over the bulk endpoint when checking just one item, and prefer it over raw blockchain or carrier lookup APIs when you want a pre-interpreted trust score with risk flags rather than raw data.

## Known failure modes

- Invalid or unrecognized asset type — endpoint cannot determine which scoring model to apply
- Malformed phone number format — returns error or low-confidence result
- Unverified or very new crypto token with no on-chain history — may return low confidence score
- Property address not found in deed records — returns low confidence or error
- Rate limiting or payment failure if x402 payment is not properly attached
- Network timeout if underlying data sources are slow to respond

## How this service works

Check if a phone number, crypto token, or property address is trustworthy. Returns a 0-100 trust score, confidence, risk flags, and plain-English summary. Detects phone fraud, spam, robocalls, and VoIP; crypto rugpulls, honeypots, and scam tokens; property deed fraud and shady listings. One call, three asset types.

## Output

A JSON object containing a numeric trust score from 0 to 100, a confidence value, one or more risk flags (e.g. 'VoIP', 'honeypot', 'deed fraud'), and a plain-English summary explaining the assessment for the queried phone number, crypto token, or property address.

## Example request

```json
{
 "type": "phone",
 "input": {
  "phone_number": "+1-800-555-0199"
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "type": {
   "enum": [
    "phone"
   ],
   "type": "string"
  },
  "input": {
   "type": "object",
   "required": [
    "phone_number"
   ],
   "properties": {
    "phone_number": {
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trustscore-dev-02e16169/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trustscore.dev](https://www.zero.xyz/host/trustscore.dev/llms.txt)