Source-bounded fact-check. Verify a claim against provided source text. Returns ...
https://x402.asterpay.io/v2/x402/ai/fact-checkOverview
Source-bounded fact-check. Verify a claim against provided source text. Returns verdict: supported, contradicted, or unverifiable. Does NOT search the web.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
tools/search
Provider
x402
Source
bazaar
Indexed
2026-06-17 22:15:20
Health
Status
degraded
Latency (p50)
210ms
Uptime (30d)
100.0%
Reliability Score
85/100
Last Checked
2026-10-06 04:26:54
Last Healthy
2026-07-26 10:46:04
Consecutive Failures
2
x402 Payment Validation
Payment Requirements
Invalid
Asset Verified
—
Facilitator
—
Input Schema
{
"body": {
"claim": "Apple reported revenue of $94.9 billion in Q1 2024",
"source": "Apple Inc. reported fiscal first-quarter revenue of $119.6 billion, a new record."
},
"method": "POST",
"schema": {
"properties": {
"claim": {
"type": "string"
},
"source": {
"type": "string"
}
},
"required": [
"claim",
"source"
],
"type": "object"
},
"type": "http"
}
Output Schema
{
"example": {
"claims_checked": 1,
"confidence": 0.98,
"evidence": "Source states $119.6B, not $94.9B as claimed.",
"latency_ms": 820,
"model": "llama-3.3-70b-versatile",
"summary": "Revenue figure directly contradicted by source.",
"verdict": "contradicted"
},
"schema": {
"properties": {
"confidence": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"evidence": {
"type": "string"
},
"summary": {
"type": "string"
},
"verdict": {
"enum": [
"supported",
"contradicted",
"unverifiable"
],
"type": "string"
}
},
"required": [
"verdict",
"confidence",
"evidence",
"summary"
],
"type": "object"
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-06 04:26:54 | degraded | 404 | 242ms | |
| 2026-10-05 18:31:44 | degraded | 404 | 259ms | |
| 2026-10-05 07:09:26 | degraded | 404 | 210ms | |
| 2026-10-05 00:00:29 | degraded | 404 | 214ms | |
| 2026-10-04 08:38:24 | degraded | 404 | 192ms | |
| 2026-10-04 05:05:21 | degraded | 404 | 192ms | |
| 2026-10-03 19:38:55 | degraded | 404 | 201ms | |
| 2026-10-03 13:40:20 | degraded | 404 | 205ms |