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SignalDesk AI – Jaccard Similarity
x402
SignalDesk AI – Jaccard Similarity is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Computes the Jaccard similarity coefficient between two text strings by comparing their token sets
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
Returns a JSON object with three fields: 'similarity' (a float between 0 and 1 representing the Jaccard coefficient), 'intersection' (number of tokens shared by both texts), and 'union' (total unique tokens across both texts).
Example use cases
Duplicate product description detection
“I have two product descriptions and want to know how similar they are — can you run a Jaccard similarity check between 'Lightweight waterproof hiking boots with ankle support' and 'Waterproof ankle boots designed for lightweight hiking'?”
Plagiarism screening for student submissions
“Check whether these two essay excerpts overlap too much: 'Machine learning enables computers to learn from data without explicit programming' versus 'Computers can learn from data using machine learning without being explicitly programmed'.”
Deduplicating news article snippets
“I'm pulling headlines from two feeds and want to know if they're covering the same story — what's the Jaccard similarity between 'Senate passes new climate legislation amid bipartisan support' and 'Bipartisan Senate vote approves landmark climate bill'?”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/text/jaccard-similarity?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, lightweight, token-set-based similarity score between two texts without requiring embeddings or ML inference. It is ideal for deduplication pipelines, near-duplicate detection, and simple overlap scoring where interpretability and speed matter more than semantic understanding.
Side effects
- Input text exceeds 4096 characters — request rejected
- Missing field 'a' or 'b' — validation error returned
- Payment not provided or insufficient — 402 Payment Required
- Empty strings produce a similarity of 0 with intersection 0 and union 0
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| a | string | Text to process. |
| b | string | Text to process. |
Output
Schema · Response
{
"type": "json",
"example": {
"union": 3,
"similarity": 0.3333333333333333,
"intersection": 1
}
}Tags
x402
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