Hamming distance API

Returns the number of differing positions, match count, and similarity between two equal-length binary or symbol vectors. Answers 'What is the Hamming distance between these binary codes?', 'How many bits differ?'.

Price$0.01per request

MethodPOST

Route/v1/retrieval/hamming-distance

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

hammingbinarydistancebitwisesimilarityquantizedretrievalrag

API URLhttps://x402.hexl.dev/v1/retrieval/hamming-distance

Integration docs

Example request

{
  "a": [
    1,
    0,
    1,
    1
  ],
  "b": [
    1,
    1,
    0,
    1
  ]
}

Example response

{
  "hammingDistance": 2,
  "length": 4,
  "similarity": 0.5,
  "matches": 2
}

Input schema

{
  "type": "object",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "type": "array"
    },
    "b": {
      "type": "array"
    }
  }
}

Output schema

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