Quick pre-flight quality score: composite (0-100) + grade (A-F) + three framewor...
https://promptqualityscore.com/api/pqs-gradeOverview
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.
Protocol
x402
Price
$0.0010
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
promptqualityscore
Source
bazaar
Indexed
2026-05-13 18:39:42
Health
Status
healthy
Latency (p50)
803ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-09-10 00:50:03
Last Healthy
2026-09-10 00:50:03
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"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 Schema
{
"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"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-10 00:50:03 | healthy | 402 | 850ms | |
| 2026-09-09 14:11:54 | healthy | 402 | 1480ms | |
| 2026-09-09 05:57:09 | healthy | 402 | 803ms | |
| 2026-09-08 21:41:12 | healthy | 402 | 762ms | |
| 2026-09-08 12:09:04 | healthy | 402 | 1100ms | |
| 2026-09-08 01:22:29 | healthy | 402 | 775ms | |
| 2026-09-07 19:57:07 | healthy | 402 | 769ms | |
| 2026-09-07 14:43:01 | healthy | 402 | 2284ms |