promptqualityscore.com

https://promptqualityscore.com/api/pqs-grade

Shares a payout wallet with 5 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

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.

61
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

Uptime

100.0% avg
0% 50% 100% Jul 22Aug 1Aug 10Aug 20

Response time

p50 728ms · p95 861ms
0ms 500ms 1000ms Jul 22Aug 1Aug 10Aug 20
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
7/22/2026, 12:00:00 AM 100% 1 940ms
7/23/2026, 12:00:00 AM 100% 1 736ms
7/24/2026, 12:00:00 AM 100% 1 175ms
7/25/2026, 12:00:00 AM 100% 1 719ms
7/26/2026, 12:00:00 AM 100% 1 890ms
7/27/2026, 12:00:00 AM 100% 1 727ms
7/28/2026, 12:00:00 AM 100% 1 733ms
7/29/2026, 12:00:00 AM 100% 1 157ms
7/30/2026, 12:00:00 AM 100% 1 741ms
7/31/2026, 12:00:00 AM 100% 1 762ms
8/1/2026, 12:00:00 AM 100% 1 713ms
8/2/2026, 12:00:00 AM 100% 1 890ms
8/3/2026, 12:00:00 AM 100% 1 777ms
8/4/2026, 12:00:00 AM 100% 1 746ms
8/5/2026, 12:00:00 AM 100% 1 781ms
8/6/2026, 12:00:00 AM 100% 1 725ms
8/7/2026, 12:00:00 AM 100% 1 190ms
8/8/2026, 12:00:00 AM 100% 1 706ms
8/9/2026, 12:00:00 AM 100% 1 715ms
8/10/2026, 12:00:00 AM 100% 1 715ms
8/11/2026, 12:00:00 AM 100% 1 816ms
8/12/2026, 12:00:00 AM 100% 1 192ms
8/13/2026, 12:00:00 AM 100% 1 702ms
8/14/2026, 12:00:00 AM 100% 1 183ms
8/15/2026, 12:00:00 AM 100% 1 785ms
8/16/2026, 12:00:00 AM 100% 1 701ms
8/17/2026, 12:00:00 AM 100% 1 680ms
8/18/2026, 12:00:00 AM 100% 1 167ms
8/19/2026, 12:00:00 AM 100% 21 756ms
8/20/2026, 12:00:00 AM 100% 19 692ms
61
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
84

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
not yet measured

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
Registrar
GoDaddy.com, LLC
Domain registered
2026-04-22
Hosting network
VERCEL-09
Hosting country

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

196
payments (30d)
5.28
USD volume (30d)
4
paying wallets (30d)

Payments per day

last payment 8/19/2026
0 10 20 Jul 22Jul 31Aug 10Aug 19
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
7/22/2026 12 0.3 2
7/23/2026 9 0.25 2
7/24/2026 6 0.15 1
7/25/2026 9 0.2 2
7/26/2026 10 0.33 2
7/27/2026 12 0.68 3
7/28/2026 6 0.15 1
7/29/2026 6 0.15 1
7/30/2026 6 0.15 1
7/31/2026 6 0.15 1
8/1/2026 6 0.15 1
8/2/2026 5 0.13 1
8/3/2026 6 0.15 1
8/4/2026 6 0.15 1
8/5/2026 6 0.15 1
8/6/2026 6 0.15 1
8/7/2026 6 0.15 1
8/8/2026 6 0.15 1
8/9/2026 6 0.15 1
8/10/2026 6 0.15 1
8/11/2026 6 0.15 1
8/12/2026 9 0.15 2
8/13/2026 6 0.15 1
8/14/2026 6 0.15 1
8/15/2026 6 0.15 1
8/16/2026 6 0.15 1
8/17/2026 6 0.15 1
8/18/2026 6 0.15 1
8/19/2026 4 0.1 1

This payout wallet is shared: figures cover all 6 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

Response schema
{
  "input": {
    "bodyFields": {
      "prompt": {
        "description": "Prompt text to grade (1-10000 chars)",
        "type": "string"
      },
      "vertical": {
        "description": "Optional domain: software/content/business/education/science/crypto/general/research",
        "type": "string"
      }
    },
    "bodyType": "json",
    "discoverable": true,
    "method": "POST",
    "type": "http"
  },
  "output": {
    "properties": {
      "frameworks": {
        "properties": {
          "geval": {
            "description": "G-Eval framework score: weights LLM-judged faithfulness (clarity, specificity, CoT, constraints)",
            "maximum": 10,
            "minimum": 0,
            "type": "number"
          },
          "peem": {
            "description": "PEEM framework score: weights structure (clarity, output format, role, constraints)",
            "maximum": 10,
            "minimum": 0,
            "type": "number"
          },
          "ragas": {
            "description": "RAGAS framework score: weights grounding (context, specificity, examples)",
            "maximum": 10,
            "minimum": 0,
            "type": "number"
          }
        },
        "required": [
          "peem",
          "ragas",
          "geval"
        ],
        "type": "object"
      },
      "grade": {
        "enum": [
          "A",
          "B",
          "C",
          "D",
          "F"
        ],
        "type": "string"
      },
      "methodology_url": {
        "description": "Link to the methodology blog post explaining the five-framework synthesis",
        "type": "string"
      },
      "score": {
        "description": "Composite 0-100 score (percentile-normalized total)",
        "maximum": 100,
        "minimum": 0,
        "type": "integer"
      },
      "upgrade_url": {
        "description": "Link to PQS Pro for the full 8-dimension SaaS",
        "type": "string"
      },
      "verdict": {
        "description": "Single sentence diagnosing the weakest dimension, with a framework citation",
        "type": "string"
      }
    },
    "required": [
      "score",
      "grade",
      "verdict",
      "frameworks"
    ],
    "type": "object"
  }
}