# X402 Data API – Agent Accessibility Checker

> X402 Data API – Agent Accessibility Checker is a paid API for AI agents from api.x402dataapi.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Inspects a public URL and returns its robots.txt rules, sitemap info, and AI-readiness status for autonomous agents

## Facts

- Endpoint: POST https://api.x402dataapi.com/v1/agent-accessibility
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-data-api-agent-accessibility-checker-1e300202
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rONfjRjnHWJlrSqUWQcK3

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 x402-data-api-agent-accessibility-checker-1e300202 -d '<json body>'
```

Example prompt: Can you check whether https://example.com is accessible to AI agents — I want to know its robots.txt rules, sitemap availability, and whether it's marked as AI-ready?

## When to prefer this

Use this endpoint when an AI agent needs to pre-check whether a target website permits automated or AI-agent access before crawling or scraping it, especially when you need structured robots.txt and sitemap data in a single call rather than fetching and parsing those files manually

## Known failure modes

- Invalid or non-public URL returns validation error
- URL is unreachable or times out returns connectivity error
- Payment of $0.001 USDC not provided triggers 402 response
- URL uses non-http/https scheme returns format error
- Target site returns unexpected structure causing partial results

## How this service works

Paid x402 API for AI agents that checks robots.txt, sitemap availability, llms.txt discovery, AI crawler readiness, agent accessibility and AI scraping compatibility for a public URL.

## Output

A JSON object containing the inspected URL, parsed robots.txt directives, sitemap metadata, and a boolean ai_ready flag indicating whether the site is considered accessible to AI agents

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "format": "uri",
   "description": "Public http or https URL to inspect"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com",
  "robots": {},
  "sitemap": {},
  "ai_ready": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-data-api-agent-accessibility-checker-1e300202/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402dataapi.com](https://www.zero.xyz/host/api.x402dataapi.com/llms.txt)