# Factstamp Entity Verification

> Factstamp Entity Verification is a paid API for AI agents from agents.factstamp.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).

Verifies whether a legal entity exists and is currently registered by querying the GLEIF LEI index, US SEC EDGAR, and the Australian Business Register (ABN/ACN/GST)

## Facts

- Endpoint: POST https://agents.factstamp.dev/entity?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/factstamp-entity-verification-6d9ca40d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n51CeOwRaB4RIdzWH4kS4

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 factstamp-entity-verification-6d9ca40d -d '<json body>'
```

Example prompt: Before I finalize this contract, can you verify that 'Acme Holdings Pty Ltd' is a currently registered legal entity and get me their ABN or ACN number from the official Australian or international registers?

## When to prefer this

Choose this endpoint when you need authoritative, cited verification of a legal entity's existence and registration status from official primary registers (GLEIF, SEC EDGAR, Australian Business Register) — especially before executing contracts, invoices, or regulatory filings. Prefer this over general web search or business data aggregators when you need a definitive registered/not-registered answer with a source citation and retrieval timestamp, and when you specifically need official identifiers like ABN, ACN, LEI, or SEC CIK.

## Known failure modes

- ambiguous: multiple entities match the name, requiring more specificity
- not_found: no matching entity found in any of the three registers
- unknown: registers were queried but a definitive answer could not be determined
- payment failure: x402 payment not accepted or insufficient balance
- malformed input: company name too vague or missing required fields

## How this service works

Verify whether a legal entity exists and is currently registered, from open primary registers: the GLEIF LEI index, US SEC EDGAR and the Australian Business Register (ABN, ACN, GST, status). Call it before naming a company in a contract, invoice or filing, or when you need an identifier (ABN, ACN, LEI, CIK) for a company you know only by name. Returns found, ambiguous, not_found or unknown, cited to the register with its retrieval time. A near name match is never reported as a match.

## Output

Returns a status of found, ambiguous, not_found, or unknown for the queried entity, along with any official identifiers found (ABN, ACN, LEI, CIK), the current registration status, the source register that was queried, and the timestamp of when the data was retrieved. Near-name matches are never reported as confirmed matches.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "const": "http"
    },
    "method": {
     "const": "POST"
    },
    "bodyType": {
     "const": "application/json"
    }
   },
   "additionalProperties": true
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   },
   "additionalProperties": true
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/factstamp-entity-verification-6d9ca40d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.factstamp.dev](https://www.zero.xyz/host/agents.factstamp.dev/llms.txt)