AgentProof Check URL Alive

x402

AgentProof Check URL Alive is a paid API for AI agents from agentproof.hatchable.site, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Checks whether a given URL is alive/reachable and returns a machine-verifiable provenance receipt with integrity hash

Price / call$0.01

Seller volume →—

Success—

StatusUnknown

How this service works

AgentProof publishes Agent Transaction Passport™ and provides machine-paid evidence, provenance receipts, source comparison and change monitoring for autonomous transactions.

Output

A JSON object with an 'ok' boolean indicating reachability, the tool name ('check_url_alive'), a provenance receipt containing a UUID receipt ID and an integrity SHA-256 hash, and the service name 'AgentProof'. This receipt serves as machine-verifiable evidence that the URL was checked at a given moment.

Example use cases

Pre-transaction link liveness check

“Before my agent purchases a data feed subscription, verify that https://datafeed.provider.com/api/stream is actually reachable and give me a receipt I can keep as proof.”

Dead link audit with provenance

“Check whether https://docs.myservice.io/reference is still live and return a cryptographic receipt showing when and whether it responded.”

Autonomous pipeline health gate

“My workflow needs to confirm https://reports.internal.corp/export is up before proceeding — probe it and give me a signed receipt I can log for audit purposes.”

Technical details

Endpoint

POSThttps://agentproof.hatchable.site/api/paid/check_url_alive?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need not just a liveness check but a machine-verifiable, tamper-evident receipt proving the check occurred — particularly useful for autonomous agent workflows, audit trails, or pre-transaction validation where proof of URL reachability at a specific moment is required. Prefer over generic uptime monitors when cryptographic provenance is important.

Side effects

URL is unreachable or returns non-2xx — ok may be false
Invalid or malformed URL input — likely 4xx error response
Network timeout reaching the target URL — may result in ok:false or error
Payment failure (x402) — request rejected before check is performed
Target URL blocks probe requests (e.g. firewall, bot detection) — false negative possible

Input

Schema · Request body

Field	Type	Description
url	string
claim	string
email	string
phone	string
contactName	string
previousSha256	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "tool": "check_url_alive",
    "receipt": {
      "id": "uuid",
      "integrity_sha256": "..."
    },
    "service": "AgentProof"
  }
}

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