# Agentics Service Quality Score

> Agentics Service Quality Score is a paid API for AI agents from x402rail.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a multi-component quality score for a given service, including latency, fidelity, identity, and availability metrics derived from live probes

## Facts

- Endpoint: GET https://x402rail.net/v1/score/%7BserviceId%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentics-service-quality-score-7c14d296
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7h9A8_9sjf74yfdCJMrUE

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 agentics-service-quality-score-7c14d296
```

Example prompt: Before my agent calls the 'document-summarizer' service, can you pull its Agentics quality score so I know its fidelity, latency, availability, and overall correctness rating?

## When to prefer this

Use this endpoint when an AI agent needs to vet a third-party service for correctness, reliability, or trustworthiness before integrating it into an autonomous workflow. Particularly valuable when fidelity and identity verification matter — e.g., before delegating critical tasks to an external API. Prefer this over generic uptime monitors when you need multi-dimensional quality signals (latency + fidelity + identity + availability) with cryptographic evidence.

## Known failure modes

- Unknown or invalid serviceId returns an error or empty result
- Service not yet probed may return null scores or low sample size
- Network timeout if probe data is temporarily unavailable
- Malformed serviceId path parameter causes a 400 or 404 response

## How this service works

Correctness-critical services for autonomous AI agents

## Output

A JSON object containing an overall numeric quality score (e.g. 92.4), a serviceId, a breakdown of component scores (latency, fidelity, identity, availability each as numeric values), a sample size indicating how many probes informed the score, a timestamp of the last probe, and a cryptographic evidence hash for auditability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 92.4,
  "serviceId": "demo-service",
  "components": {
   "latency": 87,
   "fidelity": 95.2,
   "identity": 88,
   "availability": 99.1
  },
  "sampleSize": 144,
  "lastProbeAt": "2026-06-18T12:00:00.000Z",
  "evidenceHash": "9f2b1c…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentics-service-quality-score-7c14d296/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402rail.net](https://www.zero.xyz/host/x402rail.net/llms.txt)