Caveat Check

Last 30 days

Uptime

100%

Response time

230 ms typical, 595 ms slowest 5%

Last check

3 min ago

Next check

in 26 min

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://mini-tollbooth.onrender.com/caveat-check?finding=Model+X+is+30x+faster.&source=Model+X+was+30x+faster+than+Model+Y+on+dataset+Z%2C+measured+by+the+authors+%28v2%2C+Oct+2026%29."

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fmini-tollbooth.onrender.com%2Fcaveat-check
const res = await pay("https://mini-tollbooth.onrender.com/caveat-check?finding=Model+X+is+30x+faster.&source=Model+X+was+30x+faster+than+Model+Y+on+dataset+Z%2C+measured+by+the+authors+%28v2%2C+Oct+2026%29.");
console.log(await res.json());

Example input

{
  "finding": "Model X is 30x faster.",
  "source": "Model X was 30x faster than Model Y on dataset Z, measured by the authors (v2, Oct 2026)."
}

Example output

{
  "caveats_dropped": 2,
  "claims_analyzed": 3,
  "description": "NOT AN AUDIT — heuristic screen: paste a finding plus its source text (text only, no URL fetching) and get the dropped caveats flagged — numbers missing a baseline, claims missing a measurer, results missing conditions or versions — quoting the exact claim text ($0.05).",
  "lane": "/caveat-check",
  "missing_caveats": [
    {
      "claim": "Model X is 30x faster.",
      "type": "missing-baseline",
      "what_to_ask": "Ask: compared to what baseline?"
    }
  ],
  "summary": "…",
  "verdict": "caveats-dropped"
}

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