Plumbline / Entity verification

Check that a new supplier is a real registered company before you pay

Before a deposit or a first order, confirm the supplier exists as a registered legal entity, where it is registered, and whether its registration is current.

This lookup is not running yet. Describe what you need below and it is kept on file with a reference number.

Write the specification

Specify

Describe the lookup you need.

Why check before paying

Invoice and supplier fraud often relies on a business name that sounds real but is not a registered entity, or on an address that does not match the registry. A registry record will not prove a supplier will deliver, but a missing record, a lapsed registration or an address that differs from the one on the invoice is a reason to ask more questions before money moves.

This check compares what you were given with the Global LEI Index and, for US public companies, SEC EDGAR. Many small private companies hold neither an LEI nor SEC filings; if no record is found, that is reported plainly and is not by itself evidence of fraud.

What you get

A JSON answer with each matching LEI record (LEI, legal name, jurisdiction, legal and headquarters addresses, registration status and next renewal date, the registration authority and its local identifier) and, where requested, the EDGAR registration (CIK, name, SIC code, state of incorporation, addresses, the ten most recent filings).

Who runs it, and what it costs

Plumbline. Operated by Tempered Technologies LLC, 8 The Green STE B, Dover, DE 19901. Privacy questions and deletion requests: privacy@forevenza.com. Privacy notice.

Sending a requirement is free.

Scope

Worldwide for LEI records (any jurisdiction that issues LEIs); United States for SEC EDGAR registrations.

Only companies that hold an LEI or file with the SEC can be found; many small private companies hold neither.
Beneficial ownership, credit, litigation and sanctions status are not returned (sanctions screening is a separate operation).
Name matching is the registry's own; ambiguous names return several candidates for you to choose from.

Sources

GLEIF publishes LEI reference data under the CC0 licence through a public API. www.gleif.org
SEC EDGAR submissions data is public and requires a declared User-Agent. www.sec.gov

For developers and agents

Send the same requirement as JSON to POST /entity-verification/requests (schema: /entity-verification/schema.json), or call the submit_request tool on the MCP endpoint at https://plumbline.forevenza.com/mcp. This page as Markdown: index.md.

{
  "action": "verify",
  "need": "Confirm that the supplier Siemens Energy AG is a registered company and get its registered address before we pay a deposit.",
  "specifications": {
    "legal_name": "Siemens Energy AG",
    "jurisdiction": "DE",
    "checks_needed": [
      "registered address",
      "registration status"
    ]
  }
}

`GET /entity-verification/op/lookup`

LEI records matching a name or an LEI, and the SEC EDGAR registration for a CIK or ticker, each with its registry source and retrieval time. Paid per call with x402; payment is not switched on yet, so calls answer that it is unavailable.

Parameter	Type	Meaning
`name`	string	Legal name or part of it
`lei`	string	A 20-character LEI
`cik`	string	SEC CIK
`ticker`	string	Stock ticker of an SEC filer
`country`	string	ISO 3166 alpha-2 code to narrow a name search

Example answer:

{
  "query": {
    "name": "Apple Inc.",
    "ticker": "AAPL"
  },
  "lei_records": [
    {
      "lei": "HWUPKR0MPOU8FGXBT394",
      "legal_name": "Apple Inc.",
      "jurisdiction": "US-CA",
      "entity_status": "ACTIVE",
      "registration_status": "ISSUED",
      "next_renewal": "2027-03-08",
      "legal_address": "C/O C T Corporation System, 330 N. Brand Blvd, Suite 700, Glendale, US-CA, 91203, US",
      "headquarters_address": "One Apple Park Way, Cupertino, US-CA, 95014, US",
      "registration_authority": "RA000598",
      "registration_authority_entity_id": "806592"
    }
  ],
  "edgar": {
    "cik": "0000320193",
    "name": "Apple Inc.",
    "sic": "3571",
    "sic_description": "Electronic Computers",
    "state_of_incorporation": "CA",
    "business_address": "ONE APPLE PARK WAY, CUPERTINO, CA, 95014",
    "recent_filings": [
      {
        "form": "10-K",
        "filed": "2026-11-03",
        "accession": "0000320193-26-000026"
      }
    ]
  },
  "sources": [
    {
      "registry": "GLEIF",
      "url": "https://api.gleif.org/api/v1/lei-records/HWUPKR0MPOU8FGXBT394",
      "retrieved_at": "2026-11-03T19:05:00Z"
    },
    {
      "registry": "SEC EDGAR",
      "url": "https://data.sec.gov/submissions/CIK0000320193.json",
      "retrieved_at": "2026-11-03T19:05:00Z"
    }
  ],
  "not_found": []
}

Sources: GLEIF LEI API (CC0 1.0); SEC EDGAR submissions API (US government work, public). Limits: at most 10 LEI records per answer; EDGAR only for a CIK or a ticker in SEC's company list.