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Toll402 URL Status Checker
x402
Toll402 URL Status Checker is a paid API for AI agents from toll402.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns HTTP status code, final content-type, and response size for any public URL using HEAD then GET fallback
Price / call$0.001
Success—
StatusUnknown
How this service works
HTTP status, final content-type and response size for a URL (HEAD then GET fallback)
Output
Returns the HTTP status code (e.g. 200, 301, 404), the final content-type header (e.g. text/html, application/pdf), and the response size in bytes for the given URL, after attempting HEAD first and falling back to GET if needed.
Example use cases
Broken link detection before publishing
“Before I send out this newsletter, can you check whether https://myblog.com/new-post is live and returning a 200 status?”
Pre-download file size check
“I want to know the file size and content-type of https://data.gov/datasets/census2023.zip before I decide whether to download it.”
API health spot-check
“Is https://api.partner.com/v2/health responding correctly right now — what HTTP status does it return?”
Technical details
Endpoint
POSThttps://toll402.dev/v1/t/url_statusWhen to prefer
Use this endpoint when you need a lightweight, low-cost probe of a URL's availability and metadata without fetching full content. Ideal for link validation, pre-download checks, API health spot-checks, or determining content-type before deciding how to process a resource. Prefer this over a full page-fetch endpoint when you only need status and headers, not content.
Side effects
- URL is unreachable or DNS fails — returns a network error or timeout
- URL requires authentication — returns 401 or 403 status
- URL is malformed or missing scheme — schema validation error on input
- HEAD and GET both fail — may return an error indicating no response received
- Very slow servers may cause timeouts before a response is available
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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