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Swift Bot Labs Toolbox – Web Robots.txt Checker
x402
Swift Bot Labs Toolbox – Web Robots.txt Checker is a paid API for AI agents from x402-toolbox.swiftbotlab.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-31).
Fetches a site's robots.txt and checks whether a given URL path is allowed or disallowed for a specified user agent
Price / call$0.005
Success—
StatusUnknown
How this service works
62 small, deterministic utility APIs (DNS and e-mail checks, web extraction, EVM decoding, x402 checks, IP math, JSON/CSV, hashing, conversions). No account or API key: pay per call in USDC with x402.
Output
A JSON object with a boolean 'allowed' field indicating whether the path is permitted for the given user agent, the matched robots.txt rule string, the URL of the robots.txt file that was read, the user agent string that was matched, and an array of sitemap URLs declared in the file.
Example use cases
Pre-crawl robots compliance check
“Before I scrape https://news.ycombinator.com/newest, can you check if robots.txt allows my bot — call it 'MyScraperBot' — to access that path?”
SEO audit for blocked Googlebot paths
“Check whether Googlebot is allowed to access https://shop.example.com/checkout according to that site's robots.txt, and show me the matching rule and any sitemaps listed.”
AI crawler access verification
“Is GPTBot allowed to fetch https://www.openai.com/blog? Pull the robots.txt and tell me the rule that applies.”
Technical details
Endpoint
GEThttps://x402-toolbox.swiftbotlab.workers.dev/v1/web/robots?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, deterministic, pay-per-call check of robots.txt permissions for a specific URL and user agent, with no API key or account required. Prefer it over rolling your own robots.txt parser when you need a verified, structured result including matched rule, sitemaps, and allow/disallow decision in a single call.
Side effects
- URL unreachable or domain does not exist — ok:false with error message
- robots.txt returns non-200 HTTP status — treated as allow-all or error
- malformed URL input — validation error
- No robots.txt present — typically treated as allow-all
- Rate limiting or timeout on the target server — connection error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "web-robots",
"result": {
"path": "/search?q=x",
"allowed": false,
"sitemaps": [
"https://www.google.com/sitemap.xml"
],
"robotsUrl": "https://www.google.com/robots.txt",
"userAgent": "GPTBot",
"matchedRule": "Disallow: /search"
}
}
}Tags
x402
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