Inspect citation overlap before counting corroboration
Inspect citation overlap before counting corroboration. Supply 2-10 URLs, optional article HTML and citation chains. Returns duplicate URLs, shared links and supplied-source groups with locations. No fetching, truth or independence verdict. See /openapi.json for schemas and examples.
Answeringour last check, 2026-09-29
1 of 1checks answered this week
703 msmedian answer time
n/alisted price per call
n/aprice 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://tkivbru614.execute-api.us-east-1.amazonaws.com/v1/sources/check
| Category | Code and developer |
|---|---|
| Provider host | tkivbru614.execute-api.us-east-1.amazonaws.com |
| Networks | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-29 | valid payment request | 402 | 703 ms |
Example input (from the provider)
{
"body": {
"citations": [
{
"html": "<a href=\"https://b.test\">Source</a>",
"id": "a",
"url": "https://a.test"
},
{
"id": "b",
"url": "https://b.test"
}
],
"claim": "Reported benefit"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"citations": {
"items": {
"additionalProperties": false,
"dependentRequired": {
"derives_from": [
"evidence_locator"
],
"evidence_locator": [
"derives_from"
]
},
"properties": {
"derives_from": {
"description": "Caller-declared parent citation ID. Requires evidence_locator; cycles rejected.",
"maxLength": 64,
"type": "string"
},
"evidence_locator": {
"description": "Location supporting declared lineage; not independently verified.",
"maxLength": 256,
"minLength": 1,
"type": "string"
},
"html": {
"description": "Supplied article HTML; limit 131072 UTF-8 bytes. Never executed.",
"maxLength": 131072,
"type": "string"
},
"id": {
"pattern": "^[A-Za-z0-9_.-]{1,64}$",
"type": "string"
},
"url": {
"format": "uri",
"maxLength": 2048,
"pattern": "^https://",
"type": "string"
}
},
"required": [
"id",
"url"
],
"type": "object"
},
"maxItems": 10,
"minItems": 2,
"type": "array"
},
"claim": {
"description": "Context label only; truth and semantic relevance are not assessed.",
"maxLength": 4000,
"minLength": 1,
"type": "string"
}
},
"required": [
"claim",
"citations"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"citation_link_candidates": {
"items": {
"properties": {
"from_id": {
"type": "string"
},
"locations": {
"items": {
"properties": {
"anchor_text": {
"type": "string"
},
"column": {
"type": "integer"
},
"line": {
"type": "integer"
},
"target_url": {
"type": "string"
}
},
"required": [
"target_url",
"line",
"column",
"anchor_text"
],
"type": "object"
},
"type": "array"
},
"status": {
"const": "citation_link_candidate"
},
"to_id": {
"type": "string"
}
},
"required": [
"from_id",
"to_id",
"locations",
"status"
],
"type": "object"
},
"type": "array"
},
"coverage": {
"properties": {
"citation_count": {
"type": "integer"
},
"html_document_count": {
"type": "integer"
}
},
"required": [
"citation_count",
"html_document_count"
],
"type": "object"
},
"independence": {
"const": "unknown"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"schema_version": {
"const": "1"
},
"service": {
"const": "kvaln"
},
"shared_link_candidates": {
"items": {
"properties": {
"documents": {
"items": {
"properties": {
"id": {
"type": "string"
},
"locations": {
"items": {
"properties": {
"anchor_text": {
"type": "string"
},
"column": {
"type": "integer"
},