Tool detail

probe

Returns a measured liveness verdict (LIVE/PAUSED/GATED/CHALLENGED/DEGRADED/DEAD/UNKNOWN) for one URL, with sourced reasons.

Categories: API testing

Use when

check whether an API's back end actually works, not just whether its front door answers 200

Not for

not batch probing of many URLs (see /skyfire/batch or /x402/batch)
not the full x402 payee census (see /x402/census, a separate paid product)

Inputs

GET query param: url (string, required)

Admitted input schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

Endpoint

Method: GET
URL: https://x402.shortforge.dev/x402/probe

Payment

Protocol: x402
Listed price: 0.01 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: GET https://x402.shortforge.dev/x402/probe
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z