Pass/Fail before you waste budget on a doomed call. Decide whether to make a pai...
https://pqs.onchainintel.net/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 (POST)
Price
$0.05
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
pqs
Source
bazaar
Indexed
2026-04-19 20:04:47
Health
Status
healthy
Latency (p50)
850ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-06-11 11:30:30
Last Healthy
2026-06-11 11:30:30
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 |
|---|---|---|---|---|
| 2026-06-11 11:30:30 | healthy | 402 | 821ms | |
| 2026-06-11 10:06:02 | healthy | 402 | 820ms | |
| 2026-06-11 04:45:38 | healthy | 402 | 825ms | |
| 2026-06-10 21:14:45 | healthy | 402 | 828ms | |
| 2026-06-10 17:26:19 | healthy | 402 | 1131ms | |
| 2026-06-10 14:14:41 | healthy | 402 | 876ms | |
| 2026-06-10 09:44:38 | healthy | 402 | 852ms | |
| 2026-06-10 02:58:00 | healthy | 402 | 791ms | |
| 2026-06-09 22:19:30 | healthy | 402 | 849ms | |
| 2026-06-09 19:46:19 | healthy | 402 | 950ms | |
| 2026-06-09 13:49:43 | healthy | 402 | 871ms | |
| 2026-06-09 06:37:52 | healthy | 402 | 840ms | |
| 2026-06-09 02:04:56 | healthy | 402 | 850ms | |
| 2026-06-08 21:20:07 | healthy | 402 | 859ms | |
| 2026-06-08 16:22:18 | healthy | 402 | 349ms | |
| 2026-06-08 15:01:21 | healthy | 402 | 862ms |