# Entity Resolve – Fuzzy Record Deduplication

> Entity Resolve – Fuzzy Record Deduplication is a paid API for AI agents from entity-resolve.x402supply.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).

Fuzzy-deduplicates a list of records into clusters of likely-duplicate entities, returning a merged canonical record per cluster with a confidence score

## Facts

- Endpoint: POST https://entity-resolve.x402supply.com/tools/resolve?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/entity-resolve-fuzzy-record-deduplication-e1877e81
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lopBI-fdLnjYHD_AXHSG-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability entity-resolve-fuzzy-record-deduplication-e1877e81 -d '<json body>'
```

Example prompt: I have a list of 500 customer records that probably have duplicates — can you run fuzzy deduplication on them using name and email as the matching keys, with a similarity threshold of 0.85, and give me back one canonical record per cluster with a confidence score?

## When to prefer this

Choose this endpoint when you need deterministic, reproducible entity resolution without LLM calls — ideal for compliance-sensitive pipelines, high-volume batch deduplication, or when you need explainable similarity scores. Prefer it over LLM-based matching when consistency and cost predictability matter, and over simple exact-match deduplication when records have typos, abbreviations, or formatting inconsistencies.

## Known failure modes

- Empty records array returns validation error
- Threshold outside 0–1 range rejected
- Records array exceeding 10,000 items rejected
- Malformed record objects may produce low-quality clusters
- Missing keys field may result in all-field comparison or error
- Payment failure returns 402 status

## How this service works

Fuzzy-dedupe a list of records into clusters of likely-duplicate entities. Blocks by normalized token prefix, scores with Jaro-Winkler + token-set matching (exact on email/phone), unions matches above threshold, and returns a merged canonical record per cluster with a confidence score. Deterministic, no LLM calls.

## Output

Returns clusters of records determined to be likely duplicates, each cluster containing a merged canonical record that combines the best-available field values from the grouped records, along with a confidence score indicating how certain the match is. Uses Jaro-Winkler and token-set similarity with exact matching on email and phone fields.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "options": {
   "type": "object",
   "properties": {
    "keys": {
     "type": "array",
     "items": {
      "type": "string"
     },
     "minItems": 1
    },
    "threshold": {
     "type": "number",
     "default": 0.82,
     "maximum": 1,
     "minimum": 0
    }
   },
   "additionalProperties": false
  },
  "records": {
   "type": "array",
   "items": {},
   "maxItems": 10000,
   "minItems": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "skipped": [],
  "clusters": [
   {
    "members": [
     0,
     1
    ],
    "canonical": {
     "name": "ACME Corporation",
     "email": "info@acme.com"
    },
    "confidence": 0.971
   },
   {
    "members": [
     2
    ],
    "canonical": {
     "name": "Globex LLC",
     "email": "hello@globex.com"
    },
    "confidence": 1
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entity-resolve-fuzzy-record-deduplication-e1877e81/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from entity-resolve.x402supply.com](https://www.zero.xyz/host/entity-resolve.x402supply.com/llms.txt)