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Levenshtein Edit Distance & Similarity Calculator
x402
Levenshtein Edit Distance & Similarity Calculator is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Computes the Levenshtein edit distance between two strings and returns a normalized 0–1 similarity ratio.
Price / call$0.001
Success—
StatusUnknown
How this service works
Levenshtein edit distance between two strings, plus a 0-1 similarity ratio.
Output
Returns the integer Levenshtein edit distance (minimum single-character edits to transform string a into string b) and a normalized similarity ratio between 0 and 1 (where 1 means identical strings).
Example use cases
Example prompt
“What's the Levenshtein edit distance and similarity ratio between 'kitten' and 'sitting'?”
Technical details
Endpoint
POSThttps://agent402.tools/api/levenshteinWhen to prefer
Use this endpoint when you need a precise, classic edit-distance metric for fuzzy string matching, spell checking, deduplication, or similarity scoring between two specific strings. Prefer this over semantic similarity endpoints when character-level differences matter, not meaning.
Side effects
- Missing one or both string inputs results in a validation error
- Extremely long strings may exceed payload limits or timeout
- Non-string types for a or b may cause schema validation failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| a | string | |
| b | string |
Output
Schema · Response
{
"type": "json",
"example": {
"distance": 3,
"similarity": 0.571
}
}Tags
x402
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