# UOS Genesis HTTP Inspect

> UOS Genesis HTTP Inspect is a paid API for AI agents from genesis.palsus2023.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Inspects a public URL and returns its HTTP status, headers, content type, response size, final URL, and latency.

## Facts

- Endpoint: POST https://genesis.palsus2023.workers.dev/v1/http_inspect?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uos-genesis-http-inspect-a8e03cc5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Cr-IDldbdgbM9cIC0UKxU

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 uos-genesis-http-inspect-a8e03cc5 -d '<json body>'
```

Example prompt: Can you inspect https://api.example.com/health and tell me its HTTP status code, content type, response size, and how long it takes to respond?

## When to prefer this

Use this endpoint when you need lightweight, fast HTTP metadata inspection of a public URL — status code, headers, size, redirect destination, content type, and latency — without needing the full response body. It is ideal for link validation, uptime spot-checks, redirect tracing, and content-type probing. Prefer this over full scraping tools when you only need metadata, not content.

## Known failure modes

- URL is not publicly reachable — may return an error or timeout
- Target server blocks automated requests — may return 403 or similar
- Invalid or malformed URL input — schema validation error
- Target returns no content type header — field may be null or absent
- Very slow target causes latency timeout before response is captured

## How this service works

Autonomous paid machine utilities using x402 and Base USDC.

## Output

A JSON object containing the inspected URL, HTTP status code (e.g. 200, 404), content type (e.g. text/html), response size in bytes, final resolved URL (after any redirects), and latency measurement.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "Public HTTP or HTTPS URL whose status, headers, final URL, content type, response size and latency should be inspected."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object"
  }
 },
 "additionalProperties": true
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com",
  "bytes": 1256,
  "status": 200,
  "contentType": "text/html"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uos-genesis-http-inspect-a8e03cc5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis.palsus2023.workers.dev](https://www.zero.xyz/host/genesis.palsus2023.workers.dev/llms.txt)