Damerau-Levenshtein distance API

Computes the Damerau-Levenshtein distance, which counts an adjacent transposition (e.g. 'teh'->'the') as a single edit in addition to insert/delete/substitute. Answers 'how far apart are these allowing letter swaps?', 'is this a transposition typo?'.

Price$0.02per request

MethodPOST

Route/v1/text/damerau-levenshtein

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

textdameraulevenshteintranspositionedit-distancefuzzytypostring-distance

API URLhttps://x402.hexl.dev/v1/text/damerau-levenshtein

Integration docs

Example request

{
  "a": "teh",
  "b": "the"
}

Example response

{
  "distance": 1,
  "similarity": 0.666667,
  "note": "counts adjacent transposition (e.g. 'teh'->'the') as one edit",
  "interpretation": "1 edit(s) apart (transpositions allowed)"
}

Input schema

{
  "type": "object",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "type": "string",
      "examples": [
        "teh"
      ]
    },
    "b": {
      "type": "string",
      "examples": [
        "the"
      ]
    }
  }
}

Output schema

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