# entropy.rip Endpoint Reputation & Latency Metrics

> entropy.rip Endpoint Reputation & Latency Metrics is a paid API for AI agents from entropy.rip, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns compiled reputation metrics and latency percentiles from historical probe checks for a target HTTP/HTTPS endpoint

## Facts

- Endpoint: GET https://entropy.rip/api/trust/reputation
- 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/entropy-rip-endpoint-reputation-latency-metrics-0a80e77d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_otK9_taBF_SDMP1RNZo5e

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 entropy-rip-endpoint-reputation-latency-metrics-0a80e77d
```

Example prompt: Can you pull the reputation history and latency percentiles for https://api.example.com/v1/data from entropy.rip — I want to know how reliable and fast it has been based on past probe checks?

## When to prefer this

Use this endpoint when you need historical reliability and latency data for a specific HTTP endpoint, especially paywalled or x402-compatible resources. Prefer this over real-time ping tools when you want trend data and reputation scoring rather than a single current measurement.

## Known failure modes

- Invalid or malformed URL returns validation error
- No historical probe data available for URL returns empty or null metrics
- Non-HTTP/HTTPS URL type rejected by const constraint
- Target URL unreachable or not previously probed returns limited data
- Payment of 0.02 USDC not fulfilled results in 402 response

## How this service works

Compile reputation metrics and latency percentiles from historical probe checks for a target endpoint

## Output

Returns compiled reputation metrics and latency percentile statistics (e.g. p50, p95, p99) derived from historical probe checks run against the specified endpoint URL, giving a trust and performance profile for that endpoint.

## 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",
     "description": "type"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string",
     "description": "method"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "Target HTTP/HTTPS URL of the paywalled resource to query reputation history for"
      }
     },
     "description": "queryParams"
    }
   },
   "description": "input",
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "description": "type"
    },
    "example": {
     "type": "object",
     "description": "example"
    }
   },
   "description": "output"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com/api/resource",
  "timestamp": "2026-07-14T09:23:00Z",
  "uptime_7d": 0.999,
  "uptime_24h": 0.998,
  "total_probes": 144,
  "last_probed_at": "2026-07-14T09:23:00Z",
  "phantom_detected": false,
  "latency_percentiles": {
   "p50_ms": 120,
   "p90_ms": 250,
   "p99_ms": 800
  },
  "trust_score_current": 95,
  "spec_compliance_ratio": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entropy-rip-endpoint-reputation-latency-metrics-0a80e77d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from entropy.rip](https://www.zero.xyz/host/entropy.rip/llms.txt)