Score

Last 30 days

Uptime

100%

Response time

319 ms typical, 372 ms slowest 5%

Last check

9 min ago

Next check

in 24 min

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://api.s2ar.dev/x402/v1/score?form=haiku&text=An+old+silent+pond%0AA+frog+jumps+into+the+pond%0ASplash%21+Silence+again"

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%2Fapi.s2ar.dev%2Fx402%2Fv1%2Fscore
const res = await pay("https://api.s2ar.dev/x402/v1/score?form=haiku&text=An+old+silent+pond%0AA+frog+jumps+into+the+pond%0ASplash%21+Silence+again");
console.log(await res.json());

Example input

{
  "form": "haiku",
  "text": "An old silent pond\nA frog jumps into the pond\nSplash! Silence again"
}

Example output

{
  "accepted": true,
  "charged_usd": 0.005,
  "composite": 0.96,
  "form": "haiku",
  "ok": true,
  "receipt": {
    "charter": "https://api.s2ar.dev/charter",
    "cost_usd": 0.005,
    "determinism": "replayable",
    "evidence_hash": "sha256:94abfed2…",
    "issued_at": "2026-10-10T00:00:00Z",
    "refund_rule": "failed calls are never charged",
    "what": "…",
    "witnesses": [
      "sym"
    ]
  },
  "scores": {
    "form": 1,
    "meter": 0.9,
    "rhyme": 1,
    "surface": 1
  }
}

Security scan

• No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

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