Verify whether a cited source supports an exact factual claim
Verify whether a cited source supports an exact factual claim
Answeringour last check, 2026-09-24
1 of 1checks answered this week
3429 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://red-breeze-8b8c.keenanbooker83.workers.dev/verify-citation
| Category | Everything else |
|---|---|
| Provider host | red-breeze-8b8c.keenanbooker83.workers.dev |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 3429 ms |
Example input (from the provider)
{
"body": {
"claim": "The United States declared war on Japan on December 8, 1941.",
"sourceUrl": "https://www.archives.gov/milestone-documents/joint-address-to-congress-declaration-of-war-against-japan"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"claim": {
"description": "The exact factual claim to test against the cited source.",
"maxLength": 4000,
"minLength": 1,
"type": "string"
},
"sourceUrl": {
"description": "Public URL of the source that allegedly supports the claim.",
"maxLength": 2048,
"minLength": 1,
"type": "string"
}
},
"required": [
"claim",
"sourceUrl"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"ok": {
"type": "boolean"
},
"result": {
"type": "object"
}
},
"required": [
"ok",
"result"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}