Compare two supplied public-source text versions and return bounded, hash-backed
Compare two supplied public-source text versions and return bounded, hash-backed evidence of change.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
255 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://vennatta-core.onrender.com/api/v1/evidence/compare
| Category | Everything else |
|---|---|
| Provider host | vennatta-core.onrender.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.01 | 255 ms |
Example input (from the provider)
{
"body": {
"comparison_type": "auto",
"current_text": "Enterprise plans are billed annually.",
"previous_text": "Enterprise plans are available monthly.",
"source_url": "https://example.com/pricing"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"comparison_type": {
"default": "auto",
"description": "Optional bounded category hint for the comparison.",
"enum": [
"auto",
"pricing",
"product",
"integration",
"security",
"policy"
],
"type": "string"
},
"current_text": {
"description": "Current version of the supplied public-source text.",
"maxLength": 2000000,
"minLength": 1,
"type": "string"
},
"previous_text": {
"description": "Previous version of the supplied public-source text.",
"maxLength": 2000000,
"minLength": 1,
"type": "string"
},
"source_url": {
"description": "Optional source URL associated with both submitted versions.",
"format": "uri",
"type": "string"
}
},
"required": [
"previous_text",
"current_text"
],
"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": {
"data": {
"properties": {
"added_evidence": {
"items": {
"type": "string"
},
"type": "array"
},
"change_detected": {
"type": "boolean"
},
"change_type": {
"enum": [
"pricing_change",
"product_change",
"integration_change",
"security_change",
"policy_change",
"unknown"
],
"type": "string"
},
"current_sha256": {
"type": "string"
},
"metadata": {
"properties": {
"current_characters": {
"type": "integer"
},
"previous_characters": {
"type": "integer"
},
"processing_ms": {
"type": "integer"
}
},
"required": [
"previous_characters",
"current_characters",
"processing_ms"
],
"type": "object"
},
"previous_sha256": {
"type": "string"
},
"removed_evidence": {
"items": {
"type": "string"
},
"type": "array"
},
"schema_version": {
"type": "string"
},
"source_url": {
"type": [
"string",
"null"
]
},
"summary": {
"type": "string"
}
},
"required": [
"schema_version",
"source_url",
"change_detected",
"previous_sha256",
"current_sha256",
"change_type",
"summary",
"added_evidence",
"removed_evidence",
"metadata"
],
"type": "object"
},
"status": {
"type": "string"
}
},
"required": [
"status",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}