# TrustSource Domain Trust Score

> TrustSource Domain Trust Score is a paid API for AI agents from api.trustsource.cc, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns a 0–100 trust score, risk tier (TRUSTED/MODERATE/CAUTION/HIGH_RISK), domain age, DNS records, and registrar for a given domain or URL.

## Facts

- Endpoint: GET https://api.trustsource.cc/trustscore
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-trustsource-cc-4ee8c110
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1QeLJGANTapnr41UQ8_bQ

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 api-trustsource-cc-4ee8c110
```

Example prompt: Before I send payment to this vendor, can you check the trust score for payments.acme-vendor.io and tell me whether it's TRUSTED or HIGH_RISK?

## When to prefer this

Use this endpoint when an agent needs to quickly assess whether a domain or URL is safe to interact with before executing a transaction, visiting a link, or sharing sensitive data. Prefer this over general web search when you need a structured, machine-readable trust score with tier classification and DNS metadata rather than unstructured reputation information.

## Known failure modes

- Domain not resolvable or invalid — may return low score or error
- Unknown TLD or private domain — limited DNS data available
- Very new domain with no history — may default to CAUTION or HIGH_RISK tier
- Network timeout reaching DNS or WHOIS sources — returns error response
- Malformed domain/URL input — validation error returned

## How this service works

Verify whether a domain is legitimate and safe before transacting with it. Returns a 0–100 trust score and tier (TRUSTED/MODERATE/CAUTION/HIGH_RISK) derived from WHOIS domain age, TLD risk, DNS presence, and registrar reputation. Use to vet an unfamiliar URL, redirect target, or payment destination before sending USDC or trusting its content.

## Output

Returns a 0–100 numeric trust score, a categorical risk tier (TRUSTED, MODERATE, CAUTION, or HIGH_RISK), domain age, DNS records, and registrar details for the queried domain.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "domain": "google.com"
  }
 }
}
```

## 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": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain name or full URL to score (e.g. example.com or https://example.com/path)."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-trustsource-cc-4ee8c110/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.trustsource.cc](https://www.zero.xyz/host/api.trustsource.cc/llms.txt)