# Klymax Trust Score API

> Klymax Trust Score API is a paid API for AI agents from trust-score.api.klymax402.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Evaluates the trustworthiness of a domain, URL, wallet address, or IP address, returning a composite 0–100 score, letter grade, verdict, and 5 sub-scores

## Facts

- Endpoint: GET https://trust-score.api.klymax402.com/api/score
- 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/klymax-trust-score-api-e07fec02
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KAed6gmtRRSjNaYczehRm

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 klymax-trust-score-api-e07fec02
```

Example prompt: Can you run a full trust check on 'api.payments-gateway.io' and tell me the score, grade, verdict, and all five sub-scores — I want to know if it's safe to integrate?

## When to prefer this

Use this endpoint when you need a quick, multi-dimensional trust assessment of an unknown domain, API endpoint, URL, or crypto wallet before interacting with it — especially in agentic workflows where the agent is about to call an external service, send funds, or process data from an untrusted source. Prefer the subset check option (ssl, dns) for latency-sensitive flows under 2 seconds.

## Known failure modes

- Invalid or malformed target input (not a valid domain, URL, wallet, or IP) — likely returns a 400 or error payload
- Check-specific failures if a requested check type (e.g. WHOIS) is unavailable for the target — sub-score may be null or skipped
- Payment not processed (x402 protocol failure) — endpoint returns 402 Payment Required
- Timeout if full scan takes longer than expected (3–8s range) — agent should retry or use subset checks
- Unreachable target domain — DNS or SSL checks may return failed sub-scores rather than a full error

## How this service works

Evaluate trust of a domain, URL, wallet address, or API endpoint. Returns composite score 0-100 with grade (A+ to F), verdict (trusted/moderate/suspicious/dangerous), and 5 detailed sub-scores.

## Output

Returns a composite trust score from 0 to 100, a letter grade from A+ to F, a categorical verdict (trusted, moderate, suspicious, or dangerous), and up to 5 detailed sub-scores covering SSL, DNS, WHOIS, HTTP headers, and content checks depending on which checks were requested.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "checks": {
   "type": "array",
   "items": {
    "enum": [
     "ssl",
     "dns",
     "whois",
     "headers",
     "content",
     "all"
    ],
    "type": "string"
   },
   "description": "Which checks to run. Default: all. Pass a subset like [\"ssl\",\"dns\"] for faster results (under 2s). Full scan takes 3-8s."
  },
  "target": {
   "type": "string",
   "description": "Domain (example.com), full URL (https://api.example.com/v1), wallet address (0x...), or IP address to evaluate"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/klymax-trust-score-api-e07fec02/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trust-score.api.klymax402.com](https://www.zero.xyz/host/trust-score.api.klymax402.com/llms.txt)