Jaccard similarity API

Computes Jaccard similarity (intersection over union) over word or character token sets, with overlap counts. Answers 'how much do these texts overlap as sets?', 'what fraction of tokens are shared?'.

Price$0.01per request

MethodPOST

Route/v1/text/jaccard

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

textjaccardsimilarityoverlapsettokensfuzzydedupe

API URLhttps://x402.hexl.dev/v1/text/jaccard

Integration docs

Example request

{
  "a": "the quick fox",
  "b": "the lazy fox"
}

Example response

{
  "similarity": 0.5,
  "intersection": 2,
  "union": 4,
  "aTokens": 3,
  "bTokens": 3,
  "mode": "word"
}

Input schema

{
  "type": "object",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "type": "string",
      "examples": [
        "the quick fox"
      ]
    },
    "b": {
      "type": "string",
      "examples": [
        "the lazy fox"
      ]
    },
    "mode": {
      "type": "string",
      "enum": [
        "word",
        "char"
      ],
      "examples": [
        "word"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}