agent402.tools Robots.txt Crawl Permission Checker

x402

agent402.tools Robots.txt Crawl Permission Checker is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Fetches a site's robots.txt and determines whether a given user-agent is permitted to crawl a specific URL path, returning the matched rule and declared sitemaps.

Price / call$0.001

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StatusUnknown

How this service works

Fetch a site's robots.txt and answer: may this user-agent crawl this path? Returns the matched rule and all declared sitemaps.

Output

Returns a crawl permission decision (allowed/disallowed), the specific matched rule from robots.txt (e.g. Disallow: /products/), and a list of all sitemap URLs declared in the robots.txt file.

Example use cases

Example prompt

“Check whether the user-agent 'MyBot' is allowed to crawl the path '/products/deals' on example.com — fetch the robots.txt and tell me the matched rule and any sitemaps declared.”

Technical details

Endpoint

POSThttps://agent402.tools/api/robots-check

When to prefer

Use this endpoint when an agent needs to programmatically verify crawl compliance before scraping or indexing a URL, especially when operating multiple bots with distinct user-agent identifiers. Ideal for respecting crawl ethics at scale without manually parsing robots.txt files. Prefer this over generic HTTP fetch when you also need sitemap discovery in the same call.

Side effects

robots.txt not found (404) — site may have no robots.txt, permission assumed allowed by convention
network timeout fetching robots.txt — transient failure, retry recommended
malformed URL input — returns validation error
robots.txt is inaccessible due to server error (5xx) — unclear permission state
user-agent token not found in robots.txt — falls back to wildcard (*) rules

Input

Schema · Request body

Field	Type	Description
url	string	URL whose path to check
userAgent	string	User-agent token (default *)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "allowed": true,
    "sitemaps": [
      "https://example.com/sitemap.xml"
    ],
    "matchedRule": null
  }
}

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How this service works

Fetch a site's robots.txt and answer: may this user-agent crawl this path? Returns the matched rule and all declared sitemaps.

Output

Returns a crawl permission decision (allowed/disallowed), the specific matched rule from robots.txt (e.g. Disallow: /products/), and a list of all sitemap URLs declared in the robots.txt file.

Technical details

Endpoint

POSThttps://agent402.tools/api/robots-check

When to prefer

Side effects

robots.txt not found (404) — site may have no robots.txt, permission assumed allowed by convention
network timeout fetching robots.txt — transient failure, retry recommended
malformed URL input — returns validation error
robots.txt is inaccessible due to server error (5xx) — unclear permission state
user-agent token not found in robots.txt — falls back to wildcard (*) rules

Input

Schema · Request body

Field	Type	Description
url	string	URL whose path to check
userAgent	string	User-agent token (default *)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "allowed": true,
    "sitemaps": [
      "https://example.com/sitemap.xml"
    ],
    "matchedRule": null
  }
}