← The evidence ledger
Evidence row 3970163
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://promptqualityscore.com/api/pqs-grade
- Recorded
- Previous row
- #1791793
- Body SHA-256
- d65d08ff9e562e9a9c15aa1d33c9604a51b80d54c122c9c55685d43db8ff6013
- Leaf
- 0x19f670af5ad05d9c604033d4b5eed5ef4296ba855125d0fe8ddd3962a13bd536
What was observed
{
"endpoints": [
[
"x402",
"https://promptqualityscore.com/api/pqs-grade"
]
],
"name": "promptqualityscore.com/api/pqs-grade",
"owner_address": "0xb40a687ca5483ebc02f870348f6e08971cae1308",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"category": "ai",
"description": "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.",
"discoverable": true,
"extra": {
"name": "USD Coin",
"version": "2"
},
"iconUrl": "https://raw.githubusercontent.com/OnChainAIIntel/assets/main/onchainintel_profile_pic.png",
"maxAmountRequired": "1000",
"maxAmountRequiredUSD": "$0.001",
"maxTimeoutSeconds": 300,
"mimeType": "application/json",
"network": "eip155:8453",
"networkLegacy": "base",
"outputSchema": {
"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"
}
},
"payTo": "0xB40a687ca5483Ebc02F870348f6e08971Cae1308",
"scheme": "exact",
"serviceName": "Prompt Quality Score",
"tags": [
"pqs-grade",
"prompt-quality",
"preflight",
"scoring",
"llm-tooling",
"x402",
"pqs"
]
}
],
"description": "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.",
"extensions": {
"bazaar": {
"category": "ai",
"discoverable": true,
"info": {
"input": {
"body": {
"prompt": "Explain PQS scoring in one sentence to an AI agent operator.",
"vertical": "general"
},
"bodyType": "json",
"method": "POST",
"pathParams": {},
"type": "http"
},
"output": {
"example": {
"frameworks": {
"geval": 6,
"peem": 5.5,
"ragas": 5.7
},
"grade": "C",
"methodology_url": "https://promptqualityscore.com/blog/five-framework-synthesis?utm_source=pqs-grade&utm_medium=api&utm_campaign=2026-05-grade-launch",
"score": 58,
"upgrade_url": "https://promptqualityscore.com/pro?utm_source=pqs-grade&utm_medium=api&utm_campaign=2026-05-grade-launch",
"verdict": "PEEM flags weak output format and role definition. Specify how the answer should be shaped and who is asking."
},
"type": "json"
}
},
"routeTemplate": ":var1",
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"prompt": {
"description": "Prompt text to grade (1-10000 chars)",
"maxLength": 10000,
"minLength": 1,
"type": "string"
},
"vertical": {
"default": "general",
"description": "Optional domain: software/content/business/education/science/crypto/general/research",
"enum": [
"software",
"content",
"business",
"education",
"science",
"crypto",
"general",
"research"
],
"type": "string"
}
},
"required": [
"prompt"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"pathParams": {
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"pqs-grade",
"prompt-quality",
"preflight",
"scoring",
"llm-tooling",
"x402",
"pqs"
]
}
},
"lastUpdated": "2026-10-26T09:45:43.209Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-26T09:45:42.92Z"
},
"resource": "https://promptqualityscore.com/api/pqs-grade",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "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."
}What the leaf hashes
{"body":"d65d08ff9e562e9a9c15aa1d33c9604a51b80d54c122c9c55685d43db8ff6013","id":3970163,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1794083627351885,"prev":1791793,"subject":"x402_bazaar:https://promptqualityscore.com/api/pqs-grade","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (195826 rows).
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- 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c
- Day root
- 0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d
- Chained
- 0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb
- Published
- On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa