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agentfetch /v1/headers
x402
agentfetch /v1/headers is a paid API for AI agents from agentfetch.dynv6.net:8080, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Fetches HTTP response headers and metadata for a given URL, including status code, redirect chain, and server info, paid via USDC micropayment.
Price / call$0.005
Success—
StatusDown
How this service works
Pay-per-call web utilities for AI agents: page metadata, page-to-markdown (optional JS rendering), and PNG screenshots. USDC micropayments on Base or Solana via x402.
Output
Returns a JSON object containing the final URL, HTTP status code, response headers as key-value pairs, the number of redirects followed, the redirect chain (if any), and elapsed response time in milliseconds.
Example use cases
Detect server software and CDN
“What server software and CDN is https://shopify.com using? Check its HTTP headers for me.”
Verify redirect chain for a link
“Does https://bit.ly/3xampleLink redirect, and if so where does it end up? Show me the full redirect chain and final status code.”
Monitor site availability and latency
“Check if https://api.myservice.io is returning a 200 and how many milliseconds it's taking to respond — I want to know if it's up right now.”
Technical details
Endpoint
GEThttps://agentfetch.dynv6.net:8080/v1/headersWhen to prefer
Use this endpoint when you need lightweight HTTP metadata about a URL without downloading the full page body — ideal for checking server type, status, redirects, and response time cheaply. Prefer this over page-to-markdown or screenshot endpoints when you only need header-level information. Best for monitoring, infrastructure checks, redirect auditing, or CDN/server detection tasks.
Side effects
- URL is unreachable or times out — likely returns an error status or non-200 code
- Invalid or malformed URL input — may return a 4xx error from the API itself
- Target server blocks automated requests — may return 403 or unusual headers
- DNS resolution failure for the provided domain — endpoint returns an error
- Payment not processed (x402 flow fails) — request is rejected before being made
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://example.com",
"chain": [],
"status": 200,
"headers": {
"server": "nginx"
},
"elapsedMs": 120,
"redirects": 1
}
}Tags
x402
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