# Orcpin Endpoint Reliability Pre-Flight Check

> Orcpin Endpoint Reliability Pre-Flight Check is a paid API for AI agents from orcpin.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns factual delivery measurements for a target x402 endpoint — uptime rate, valid-402 rate, p50/p95/p99 latency, last status, and sampled paid delivery verification — before an agent spends money on it.

## Facts

- Endpoint: GET https://orcpin.dev/v1/endpoint-reliability
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orcpin-endpoint-reliability-pre-flight-check-3b0fc697
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hISIJqKFhOskZkVlXQxUs

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 orcpin-endpoint-reliability-pre-flight-check-3b0fc697
```

Example prompt: Before my agent pays for it, check the reliability of https://api.example.com/some-x402-resource — I want to see its uptime rate, valid-402 rate, and p50/p95/p99 latency stats so I know it actually delivers before spending anything.

## When to prefer this

Use this endpoint when an AI agent is about to spend USDC on an x402 API call and needs objective, pre-payment assurance that the endpoint is live and has historically delivered valid responses. Prefer this over generic uptime monitors because it is specifically designed for the x402 payment protocol — measuring valid-402 response rates and paid delivery verification, not just TCP reachability. Ideal as a pre-flight gate in automated agentic workflows before committing funds.

## Known failure modes

- Target URL not reachable or no historical measurement data available — returns empty or minimal facts object
- Invalid or malformed target URL provided — schema validation error
- Target endpoint has never been probed — no sample data returned
- Orcpin service itself temporarily unavailable — HTTP 5xx error
- Insufficient probe sample size for meaningful statistics — flags field may indicate low confidence

## How this service works

x402 endpoint reliability pre-flight: factual service-delivery measurements of a target x402 endpoint before an agent pays it — reachability/uptime rate, valid-402 rate, response latency (p50/p95/p99), last status, and sampled paid delivery verification. Facts only (no trust score, no 'scam' label). Check whether an endpoint is live and delivers before spending on it.

## Output

A JSON object containing factual delivery measurements for the queried x402 endpoint: uptime/reachability rate, valid-402 response rate, latency percentiles (p50/p95/p99), last observed status, sampled paid delivery verification results, any flags raised, sample size, schema version, and a disclaimer. No trust scores or subjective labels — raw observed facts only.

## 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": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "Target x402 endpoint URL to read reliability facts for."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "facts": {
       "type": "object"
      },
      "flags": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "status": {
       "type": "string"
      },
      "disclaimer": {
       "type": "string"
      },
      "sample_size": {
       "type": "integer"
      },
      "schema_version": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orcpin-endpoint-reliability-pre-flight-check-3b0fc697/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orcpin.dev](https://www.zero.xyz/host/orcpin.dev/llms.txt)