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Strale URL Health Check
x402
Strale URL Health Check is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-09-14).
Checks the HTTP health and availability of any URL, returning status, response time, and redirect chain information.
Price / call$0.0324
Success—
StatusUnknown
How this service works
The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.
Output
Returns the HTTP status code, response time, redirect chain (if any), and an audit record with cryptographic chain hashing confirming the check was performed. Includes availability verdict and any error details if the URL is unreachable.
Example use cases
Pre-send link validation
“Before I publish this newsletter, check that https://mybrand.com/promo-offer is actually live and returning a 200 — use a GET request.”
Broken link detection in pipeline
“I need to verify whether https://partner-api.example.com/v1/status is reachable right now — do a HEAD request with a 5-second timeout.”
Monitor third-party service availability
“Check if https://checkout.stripe.com is up and responding before we route users there — GET request, follow any redirects.”
Technical details
Endpoint
GEThttps://api.strale.io/x402/v2/url-health-checkWhen to prefer
Choose this endpoint when you need a quick, auditable HTTP health check on a single URL with cryptographic proof of the check. Prefer it over generic ping tools when you need a tamper-evident audit trail, redirect chain tracking, or when the result will be used in a compliance or trust context. It is ideal for pre-flight checks before agent workflows depend on an external resource.
Side effects
- URL is malformed or missing — returns validation error
- Target URL times out — returns timeout error with elapsed time
- DNS resolution failure for the target host — returns connection error
- URL returns a non-2xx status — still returned as valid response with status code
- Network-level block or firewall prevents probe — returns connection refused error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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