resources/promptqualityscore.com/e62ab5ceb13be1cc4b07e341
POSTorigin reachablediscovery only

POST /api/pqs-grade

Quick pre-flight quality score: composite (0-100) + grade (A-F) + three framework sub-scores (PEEM, RAGAS, G-Eval) + verdict. Run upstream of any other paid call to filter weak prompts before inference. The cheapest gate on the AI input quality problem.

https://promptqualityscore.com/api/pqs-grade
USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE
AI CODING TOOLS
quote-check.ts
const response = await fetch("https://promptqualityscore.com/api/pqs-grade", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
  "type": "http",
  "method": "POST",
  "bodyType": "json",
  "bodyFieldNames": [
    "prompt",
    "vertical"
  ],
  "pathParamNames": [],
  "queryParamNames": []
}),
});

console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));

// A valid 402 is a quote, not a completed paid call.

Review the provider input schema before running this non-read-only method. No payment code is included.

STATUS HISTORY

  1. Exact route checked

    not safely testable · potentially-mutating-method:POST

  2. Origin reachable

    HEAD https://promptqualityscore.com/ returned 200.

  3. Observed in cdp-bazaar

    The registry record was observed and retained with provenance.

EVIDENCE

cdp-bazaarobserved 2026-07-10 · https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources
origin checkHEAD https://promptqualityscore.com/ → 200 on 2026-07-10
route quotenot invoked automatically · potentially-mutating-method:POST · 2026-07-10

Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call.

PAYMENT OPTIONS

eip155:8453exact1000 atomic · 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
POST /api/pqs-grade · TOLL·402