# api.x-402.online Web Unblocking Proxy

> api.x-402.online Web Unblocking Proxy is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.020009/call, status down (last checked 2026-10-21).

Fetches blocked or bot-protected web pages by routing requests through a French residential IP with a real Chromium browser, bypassing anti-bot defenses and returning the rendered HTML.

## Facts

- Endpoint: POST https://api.x-402.online/v1/unblock?utm_source=zero.xyz
- Price: $0.020009/call
- Payment: x402
- Status: down
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-x-402-online-web-unblocking-proxy-8f83ca30
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kvXRhjF81tNK3cfZPMfki

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 api-x-402-online-web-unblocking-proxy-8f83ca30 -d '<json body>'
```

Example prompt: This page keeps returning an access-denied or challenge screen when I try to fetch it — can you route the GET request for https://example.com/protected-page through the residential Chromium proxy to get me the actual HTML?

## When to prefer this

Use this endpoint when a direct fetch returns a challenge page, empty JavaScript shell, or access-denied response due to anti-bot protections. It is the right choice when the target site blocks datacenter IPs or requires a real browser to render content. Prefer it as a fallback after a plain HTTP fetch fails, especially for sites using Cloudflare, Akamai, or similar bot-management layers.

## Known failure modes

- Target site uses CAPTCHAs that cannot be solved automatically, returning an unresolved challenge page
- Target URL is unreachable or returns a server error (5xx)
- Page requires authentication credentials not supplied in the request
- Residential IP range has been flagged or banned by the target site
- Request times out if the target page is extremely slow to load
- Invalid or malformed URL input causes a 400-level error

## How this service works

Pay-per-call APIs for AI agents — x402 protocol, USDC on Base, no account needed.

## Output

The fully rendered HTML of the requested page as returned by a real Chromium browser running behind a French residential IP, including content that would normally be hidden behind JavaScript rendering, Cloudflare challenges, or datacenter IP blocks.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://…",
  "html": "<html>…</html>",
  "bytes": 1050000,
  "format": "html"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-x-402-online-web-unblocking-proxy-8f83ca30/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x-402.online](https://www.zero.xyz/host/api.x-402.online/llms.txt)