PQS - A Quality Gate For Prompts
A Quality Gate For Prompts. Before they break production. Score any AI prompt against 8 dimensions, see what's weak, and get the fixed version in seconds.
Offering
- Provider
- promptqualityscore.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Security
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://promptqualityscore.com/api/preflight- MIME type
- Not provided
- First seen
- 2026-10-16T02:00:03.055Z
- Last seen
- Tags
- AI, Utility
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"payTo": "0xb40a687ca5483ebc02f870348f6e08971cae1308"
},
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"payTo": "0xB40a687ca5483Ebc02F870348f6e08971Cae1308"
}
]Observed health
- Status
- Healthy
- Latest latency
- 78 ms
- Average latency
- 109 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"prompt": {
"type": "string",
"description": "Prompt to preflight"
},
"vertical": {
"type": "string",
"description": "Domain: software/content/business/education/science/crypto/general/research"
},
"endpoint_url": {
"type": "string",
"description": "Optional endpoint URL for trust scoring"
}
},
"discoverable": true
}Output schema
{
"type": "object",
"required": [
"pqs_version",
"clearance",
"prompt"
],
"properties": {
"chain": {
"enum": [
"base",
"solana"
],
"type": "string"
},
"prompt": {
"type": "object",
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "integer"
},
"out_of": {
"enum": [
80
],
"type": "integer"
},
"feedback": {
"type": "array",
"items": {
"type": "string"
}
},
"top_issue": {
"type": [
"string",
"null"
]
},
"dimensions": {
"type": "object",
"properties": {
"total": {
"type": "integer",
"maximum": 80,
"minimum": 8
},
"clarity": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"context": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"examples": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"constraints": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"specificity": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"cot_structure": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"output_format": {
"type": "integer",
"maximum": 10,
"minimum": 1
},
"role_definition": {
"type": "integer",
"maximum": 10,
"minimum": 1
}
}
},
"threshold_met": {
"type": "boolean"
}
}
},
"endpoint": {
"type": "object",
"properties": {
"wallet": {
"type": "string"
},
"trust_label": {
"type": "string"
},
"trust_score": {
"type": "number"
},
"resolution_source": {
"type": "string"
}
},
"description": "Present only when endpoint_url was supplied"
},
"clearance": {
"enum": [
"CLEAR",
"CAUTION",
"BLOCK"
],
"type": "string"
},
"confidence": {
"type": "number"
},
"pqs_version": {
"enum": [
"2.0"
],
"type": "string"
}
}
}