Pass/Fail before you waste budget on a doomed call. Decide whether to make a pai...
https://promptqualityscore.com/api/preflightOverview
Pass/Fail before you waste budget on a doomed call. Decide whether to make a paid LLM call before you make it. Preflight scores your prompt against an 8-dimension quality rubric (pass/fail at 28/80) and optionally pulls the target endpoint's on-chain trust signals — total payments, unique payers, last activity. Two-in-one circuit breaker for agents that don't want to waste budget on weak prompts or sketchy endpoints. (rev 2)
Protocol
x402
Price
$0.05
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
promptqualityscore
Source
bazaar
Indexed
2026-06-03 23:20:07
Health
Status
healthy
Latency (p50)
829ms
Uptime (30d)
100.0%
Reliability Score
82/100
Last Checked
2026-06-04 03:41:10
Last Healthy
2026-06-04 03:41:10
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"bodyFields": {
"endpoint_url": {
"description": "Optional endpoint URL for trust scoring",
"type": "string"
},
"prompt": {
"description": "Prompt to preflight",
"type": "string"
},
"vertical": {
"description": "Domain: software/content/business/education/science/crypto/general/research",
"type": "string"
}
},
"bodyType": "json",
"discoverable": true,
"method": "POST",
"type": "http"
}
Output Schema
{
"properties": {
"chain": {
"enum": [
"base",
"solana"
],
"type": "string"
},
"clearance": {
"enum": [
"CLEAR",
"CAUTION",
"BLOCK"
],
"type": "string"
},
"confidence": {
"type": "number"
},
"endpoint": {
"description": "Present only when endpoint_url was supplied",
"properties": {
"resolution_source": {
"type": "string"
},
"trust_label": {
"type": "string"
},
"trust_score": {
"type": "number"
},
"wallet": {
"type": "string"
}
},
"type": "object"
},
"pqs_version": {
"enum": [
"2.0"
],
"type": "string"
},
"prompt": {
"properties": {
"dimensions": {
"properties": {
"clarity": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"constraints": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"context": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"cot_structure": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"examples": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"output_format": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"role_definition": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"specificity": {
"maximum": 10,
"minimum": 1,
"type": "integer"
},
"total": {
"maximum": 80,
"minimum": 8,
"type": "integer"
}
},
"type": "object"
},
"feedback": {
"items": {
"type": "string"
},
"type": "array"
},
"grade": {
"type": "string"
},
"out_of": {
"enum": [
80
],
"type": "integer"
},
"score": {
"type": "integer"
},
"threshold_met": {
"type": "boolean"
},
"top_issue": {
"type": [
"string",
"null"
]
}
},
"type": "object"
}
},
"required": [
"pqs_version",
"clearance",
"prompt"
],
"type": "object"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-06-04 03:41:10 | healthy | 402 | 829ms |