# Entity Resolver

> Entity Resolver is a paid API for AI agents from entityresolver.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-13).

Resolves an ambiguous company name or ticker symbol into ranked candidate entities with verified canonical IDs from SEC, GLEIF, Wikidata, and CoinGecko

## Facts

- Endpoint: GET https://entityresolver.xyz/resolve?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/entity-resolver-94d6dfe2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9o201vQgOJMgkErWK3BCS

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-resolver-94d6dfe2
```

Example prompt: Can you resolve 'Stripe' into its canonical entity IDs — I need the SEC CIK, LEI, and Wikidata QID so I know exactly which company we're talking about?

## When to prefer this

Use this endpoint when you need verified, cross-registry canonical identifiers for a company, financial entity, or crypto asset starting from an ambiguous name or ticker. It is especially valuable when you need to reconcile data across SEC EDGAR, GLEIF, Wikidata, and CoinGecko in a single call rather than querying each registry separately. Prefer it over generic search when you need confidence-ranked results with structured ID fields.

## Known failure modes

- Query string is too ambiguous and returns no high-confidence candidates
- Entity not found in any source registry returns empty candidates array
- Malformed or missing query parameter returns 400-level error
- Payment not processed due to insufficient USDC balance blocks the call
- Ambiguous name maps to many entities with similarly low confidence scores

## How this service works

Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGecko slug. Every ID is pulled live from the entity's own official registry and tagged with the sources that agreed — so you can check it yourself, not trust an LLM's guess. Ranked by confidence.

## Output

A JSON object containing the original query, a list of ranked candidate entities each with a kind (company, crypto_asset, or entity), a name, a confidence score, a description, source registries used, and a set of verified canonical IDs including SEC CIK, GLEIF LEI, Wikidata QID, CoinGecko slug, ticker, domain, blockchain contract address, and chain ID where applicable, plus a timestamp of resolution.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "q": "Apple"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Ambiguous entity name or ticker to resolve, e.g. Apple, ETH, Stripe."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "query": {
       "type": "string"
      },
      "candidates": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "ids": {
          "type": "object",
          "properties": {
           "cik": {
            "type": "string",
            "description": "SEC EDGAR central index key, zero-padded to 10."
           },
           "lei": {
            "type": "string",
            "description": "GLEIF Legal Entity Identifier, read back from GLEIF."
           },
           "isin": {
            "type": "string",
            "description": "ISO 6166 security identifier."
           },
           "domain": {
            "type": "string"
           },
           "ticker": {
            "type": "string",
            "description": "Equity or crypto symbol."
           },
           "chainId": {
            "type": "number"
           },
           "contract": {
            "type": "string"
           },
           "wikidata": {
            "type": "string",
            "description": "Wikidata QID."
           },
           "coingecko": {
            "type": "string",
            "description": "CoinGecko slug id."
           }
          },
          "description": "Whichever canonical IDs apply to this candidate."
         },
         "kind": {
          "enum": [
           "company",
           "crypto_asset",
           "entity"
          ],
          "type": "string"
         },
         "name": {
          "type": "string"
         },
         "sources": {
          "type": "array",
          "items": {
           "enum": [
            "sec",
          
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "apple",
  "candidates": [
   {
    "ids": {
     "cik": "0000320193",
     "lei": "HWUPKR0MPOU8FGXBT394",
     "isin": "US0378331005",
     "ticker": "AAPL",
     "wikidata": "Q312"
    },
    "kind": "company",
    "name": "Apple Inc.",
    "sources": [
     "sec",
     "gleif",
     "wikidata"
    ],
    "confidence": 0.98
   }
  ],
  "resolvedAt": "2026-06-06T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entity-resolver-94d6dfe2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from entityresolver.xyz](https://www.zero.xyz/host/entityresolver.xyz/llms.txt)