Bulgaria Beneficial Owners MCP server

@pipeworx/bulgaria-beneficial-owners

A Bulgarian legal entity's beneficial owners (действителни собственици), from the Registry Agency's (Agentsia po vpisvaniyata) Commercial Register and Register of Non-Profit Legal Entities. Fleet #3332, Bruce's build-names ruling on #3329.

Part of Pipeworx — an MCP gateway connecting AI agents to 1875+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Tools

by its EIK/UIC (the 9-digit unified identification code; 13 digits for a foreign-company branch). Returns each owner's name, the country the register names for them, country of residence when the register states one, and the register's OWN free-text description of their manner of control. Some entries are the AMLD fallback category — a senior managing official recorded when no other beneficial owner can be established — rather than a true economic owner, and mannerofcontrol says which, in the register's own words. An entity whose record carries no natural-person owner on file (common when the ownership chain resolves only through other companies) answers found: true with an empty owner list and register_note explaining why, never a silent empty array with no context.

• bgbeneficialowners(eik) — a Bulgarian legal entity's beneficial owners

Read live, per request — the Registry Agency publishes no bulk open-data extract of this field, so dataasof is the day of the call, not a mirror refresh date.

Auth

Keyless. No account, login or payment is needed to read this field — the register's own public search tool serves it the same way.

Personal data

Beneficial owners' names and country-level nationality/residence (never a street address) are served under Bruce's build-names ruling (fleet #3329/#3332, verified live and free of login 2026-10-18/19). A shared removal mechanism (@pipeworx/shared's applyRemovals, the same one sos-entities uses under the 2026-10-08 names-and-roles ruling) withholds any name on request to support@pipeworx.io — withheldbyremoval_request on every response says how many were suppressed for that lookup.

Data sources

Register of Non-Profit Legal Entities — the statutory register every Bulgarian legal entity's beneficial-ownership declaration is filed into under Bulgaria's anti-money-laundering law. The exact route lives only in src/index.ts (CLAUDE.md step 9b).

• Registry Agency (Agentsia po vpisvaniyata), Commercial Register and

A note on verification

This pack's live fetch was verified with curl (200, real data, no account). A plain Node fetch() call to the same endpoint from this development machine returned HTTP 500 with an empty body on several attempts, while curl against the identical URL succeeded every time — consistent with a WAF/CDN fingerprinting the TLS client rather than an auth or rate-limit wall (no 401/403, no login redirect, just a bare 500). The Cloudflare Workers runtime this pack actually runs under is neither curl nor Node, so this is unresolved until the post-deploy live probe confirms which side of that line it falls on. If it turns out blocked from Workers too, the answer is the same as for any WAF block: document it, do not try to defeat it.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "bulgaria-beneficial-owners": {
      "url": "https://gateway.pipeworx.io/bulgaria-beneficial-owners/mcp"
    }
  }
}

What this endpoint actually serves

Shortened. The full README is on GitHub.