Api Endpoint

Vennatta Evidence Compare

Compare two supplied public-source text versions and return bounded, hash-backed evidence of change.

Open interactive test console

Offering

Provider
vennatta-core.onrender.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Data
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://vennatta-core.onrender.com/api/v1/evidence/compare
MIME type
Not provided
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
Evidence, comparison, Research

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x98807Ecce0D4F555d0447F79E7BdD9AA2aF0b767"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "2rcgAvgbmVQh279F6EVPeH3gaHNqAq1uU611Wqcxwnq1"
  }
]

Observed health

Status
Reachable
Latest latency
44 ms
Average latency
118 ms
HTTP status
405
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "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 schema

{
  "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"
}