Openregistry

OpenRegistry

[](https://registry.modelcontextprotocol.io/v0/servers?search=io.github.sophymarine%2Fopenregistry) [](https://glama.ai/mcp/servers/sophymarine/openregistry) [](https://cursor.directory/plugins/openregistry) [](https://www.pulsemcp.com/servers/sophymarine-openregistry) [](https://smithery.ai/servers/sophymarine/openregistry) [](https://x.com/sophymarine) [](https://www.apache.org/licenses/LICENSE-2.0)

Real-time direct access to unmodified data and raw filings of 30 official government registries via MCP.

Tools: search companies, get profiles, officers, shareholders, charges, filings, and financial-statement documents.

Covers UK Companies House, Ireland CRO, France RNE, Spain BORME, Italy InfoCamere, Norway Brreg, Poland KRS, Netherlands KVK, Belgium KBO, Switzerland Zefix, Finland, Czechia, Korea, Taiwan, New Zealand, Cayman Island, Australia, Canada and a lot more.

Free tier; paid keys for higher quota and depth.

> Data licensed from 🇬🇧 UK Companies House · 🇮🇪 CRO Ireland · 🇳🇴 Brønnøysund · 🇨🇭 Zefix · 🇵🇱 KRS Ministry of Justice — and 22 more national registries under their respective open-data licences.

[](https://openregistry.sophymarine.com)

> Above: an AI agent walks the shareholders of Iceland Foods Ltd through 4 UK holding companies — WD FF MIDCO → ICELAND VLNCO → LANNIS → WD FF LIMITED — and surfaces the 8 individuals who actually own the chain (Tarsem Dhaliwal 41.35% as the largest shareholder, Walker family 51.31% combined). Every share count, every percentage, read verbatim from the registry's own CS01 PDFs.

[](https://glama.ai/mcp/servers/sophymarine/openregistry)

OpenRegistry is your AI agent's live hotline to 30 national company registries — UK Companies House, France RNE, Germany Handelsregister, Italy InfoCamere (via EU BRIS), Spain BORME, Poland KRS, Korea OpenDART, Canada CBCA, 10 US states, and more.

We return the registry's own response — unmodified. Every field name, every status value, every raw filing byte (XHTML iXBRL / PDF / XBRL) is preserved exactly as the government's system emits it. The identifiers and jurisdiction routing let you reconstruct the government URL for any record. No aggregator markup. No field renames. No document re-rendering. No AI reinterpretation. No stale cache.

Chain queries across borders in a single prompt — a UK Ltd → its Luxembourg SARL → its Cayman LP → the Jersey trust → the individual beneficiary, all in one conversation. Walk ownership structures through 30 jurisdictions to unmask the real person behind any company.

Hosted endpoint: https://openregistry.sophymarine.com/mcp

A platform by Sophymarine.

The 6 pillars

| | | |---|---| | 1. Live | Every tool call is a real-time query to the upstream government registry API at the moment you ask. | | 2. Direct-to-government | No aggregator, no third-party data warehouse, no nightly scrape. Your AI talks to UK Companies House, France INSEE, German Registerportal, Korean FSS OpenDART directly. | | 3. Unmodified + source-linked | Every field name, every status code, every raw filing byte returned verbatim. The registry's own identifiers are preserved so any response traces back to the government record. Enterprise tier adds pre-synthesised source_url / registry_url / data_license fields. | | 4. Zero-stale | No cache layer we control can ever go stale. You see an update the moment the government records it. Contrast with commercial data providers that serve 6-24 hour-old snapshots. | | 5. Stable | Production-grade reliability, running on Cloudflare Workers' global edge + a warm pool of per-jurisdiction workers for stateful registries. | | 6. Cross-border | Chain queries across 30 registries in a single prompt. Walk UK Ltd → LU SARL → KY LP → individual without leaving the conversation. |

How OpenRegistry differs

| | OpenRegistry | OpenCorporates | Companies House API direct | Bureau van Dijk Orbis | |---|:---:|:---:|:---:|:---:| | Coverage | 30 national registries | ~140, mostly aggregated from upstream sources | UK only | ~430M companies, aggregated | | Data freshness | Live — every call hits upstream | Scrape-and-cache (hours–days lag) | Live | 7-day to quarterly refresh | | Field shape | Verbatim upstream payload + unified envelope | Normalised to OC's own schema | Per-registry CH schema | BvD's own schema | | Source identifier preserved | Yes — registry URL reconstructable from response | OC ID is primary; mapping back is lossy | Native | BvD ID is primary | | Filing PDFs / iXBRL bytes | Returned raw | Metadata only; full bytes paywalled | Native | Paywalled | | Cross-border chain walking | One MCP prompt, ≤30 jurisdictions | Manual ID-stitching across countries | Out of scope (UK only) | Limited to BvD-mastered entities | | Authentication | OAuth 2.1 + DCR | API key (signup required) | API key (signup required) | Per-seat license, $30k–$50k+/yr | | Self-serve free tier | Free tier: 30 req/min, 6 core tools, all jurisdictions | Free for non-commercial only, throttled | Free, single-jurisdiction | None | | Made for AI agents | MCP-native, JSON-RPC over Streamable HTTP | REST; no MCP wrapper | REST; no MCP wrapper | REST; no MCP wrapper |

One-liner. OpenCorporates and BvD are aggregators that re-shape and cache; CH-direct is single-jurisdiction. OpenRegistry is the layer between an AI agent and the original government APIs — verbatim, live, multi-country, no API key for the free tier.

Where OpenRegistry deliberately doesn't have data (statutorily restricted BO registers post-CJEU C-37/20: DE, ES, IT, NL, LU, AT, MT, PT), the response carries a structured alternative_url pointing at the AML-obliged-only statutory portal. We don't pretend to have data we don't.

Quick example calls

Three full request → response examples for the most common tools. All three reproducible on the free tier. Calls are JSON-RPC over MCP Streamable HTTP at https://openregistry.sophymarine.com/mcp; for brevity we show the tool name + arguments + the unwrapped response.

1. search_companies — find a UK company

// Request
{
  "name": "search_companies",
  "arguments": { "jurisdiction": "GB", "query": "Monzo Bank", "limit": 5 }
}

// Response (truncated to 1 result)
{
  "jurisdiction": "GB",
  "count": 5,
  "results": [
    {
      "jurisdiction": "GB",
      "company_id": "09446231",
      "company_name": "MONZO BANK LIMITED",
      "status": "active",
      "incorporation_date": "2015-02-06",
      "registered_address": "Broadwalk House, 5 Appold Street, London, England, EC2A 2AG",
      "jurisdiction_data": {
        "company_number": "09446231",
        "company_status": "active",
        "company_type": "ltd",
        "date_of_creation": "2015-02-06",
        "title": "MONZO BANK LIMITED",
        "address_snippet": "Broadwalk House, 5 Appold Street, London, England, EC2A 2AG",
        "kind": "searchresults#company",
        "links": { "self": "/company/09446231" }
        // ... 20+ verbatim CH fields
      }
    }
  ]
}

2. get_persons_with_significant_control — UK PSC for a known company

// Request
{
  "name": "get_persons_with_significant_control",
  "arguments": { "jurisdiction": "GB", "company_id": "OC404063" }
}

// Response
[
  {
    "jurisdiction": "GB",
    "psc_id": "...",
    "name": "[REDACTED — UK CH residential-address suppression]",
    "kind": "individual-person-with-significant-control",
    "nature_of_control": ["ownership-of-shares-25-to-50-percent"],
    "notified_on": "2024-08-15",
    "is_active": true,
    "jurisdiction_data": {
      "etag": "...",
      "natures_of_control": ["ownership-of-shares-25-to-50-percent"],
      "notified_on": "2024-08-15",
      "country_of_residence": "United Kingdom",
      "date_of_birth": { "month": 7, "year": 1985 },
      "address": { "country": "United Kingdom" },
      "links": { "self": "/company/OC404063/persons-with-significant-control/individual/..." }
      // ... full CH PSC record
    }
  }
]

> PSC ≠ shareholders. UK Companies House publishes a structured PSC register and a separate (filing-only) statement of capital. They disagree: a 10% shareholder appears in the statement of capital but not in PSC; a corporate trustee appears in PSC without being a shareholder. We surface both via get_persons_with_significant_control and get_shareholders respectively — see the shareholders-vs-PSC case study.

3. fetch_document — raw iXBRL annual accounts bytes

// Request — get the document_id from list_filings or get_financials first
{
  "name": "fetch_document",
  "arguments": { "document_id": "MzQ0MTUyNDU5N2FkaXF6a2N4", "max_bytes": 5000000 }
}

// Response (metadata + base64-encoded body)
{
  "jurisdiction": "GB",
  "document_id": "MzQ0MTUyNDU5N2FkaXF6a2N4",
  "content_type": "application/xhtml+xml",
  "size_bytes": 348721,
  "encoding": "base64",
  "content": "PCFET0NUWVBFIGh0bWwgUFVCTElDIC...",
  // signed proxy URL for human download / out-of-band fetch
  "proxy_url": "https://openregistry.sophymarine.com/document/gb/MzQ0MTUyNDU5N2FkaXF6a2N4/content?token=..."
}

The content is the literal iXBRL bytes Companies House sends — your AI agent parses or re-renders as it sees fit. We don't re-encode, normalise tags, or extract figures into our own schema. Pass format: "png" (Browser Rendering required) to receive a rasterised page-by-page render of scanned PDFs instead.

Quotas, errors, and back-off

OpenRegistry surfaces three distinct kinds of failure with structured responses so AI agents can branch on them.

Rate limits

Per-IP for anonymous, per-user for signed-in. The cross-border fan-out cap is a separate counter that limits how many distinct jurisdictions a caller can hit via search_companies in a rolling 60-second window.

When you exceed either limit, the response is HTTP 429:

{
  "jsonrpc": "2.0",
  "error": {
    "code": -32000,
    "message": "rate-limited",
    "data": {
      "reason": "rate-limited",
      "retry_after_ms": 12400,
      "scope": "ip"           // or "user" or "fanout"
    }
  }
}

The HTTP layer also sets the standard Retry-After: 13 header (seconds, rounded up). Honour retry_after_ms exactly — exponential back-off on top is unnecessary; the limit window is fixed-rolling, not adaptive. Fan-out cap (scope: "fanout") is a 60-second rolling window — the second your oldest country falls off, you can hit a new one. Pro tier caps at 10 distinct countries / 60s, Max at 30, Enterprise unlimited.

Statutorily restricted (CJEU C-37/20 and similar)

Some beneficial-ownership registers became access-restricted to AML-obliged entities post-CJEU C-37/20 (DE, ES, IT, NL, LU, AT, MT, PT) and the Cayman Beneficial Ownership Transparency Act. We don't proxy these — the tool returns HTTP 501 with structured guidance:

{
  "jurisdiction": "DE",
  "error": "not_proxied_by_design",
  "reason": "CJEU-C-37-20",
  "alternative_url": "https://www.transparenzregister.de",
  "alternative_access": "AML-obliged entities only (banks, lawyers, notaries, etc.)",
  "human_message": "The German Transparency Register is statutorily gated since 22 Nov 2022."
}

This is a design response, not a transient failure — retrying won't help. The alternative_url is the canonical statutory portal where qualified entities can register for access.

Upstream errors and tool-level structured 501s

When the upstream registry has its own outage, we surface its error verbatim with a structured wrapper:

{
  "jurisdiction": "ES",
  "error": "upstream_error",
  "upstream_status": 524,
  "human_message": "Spain BORME upstream timed out (Madrid bulletin renderer slow). Retry in 30-60s.",
  "retry_after_ms": 45000
}

Some tools also return 501 with an alternative tool suggestion when the upstream registry doesn't expose the requested concept (e.g. CZ political parties don't have officers in the standard sense — call search_specialised_records with source="rpsh" instead):

{
  "error": "alternative_tool_required",
  "alternative_tool": "search_specialised_records",
  "alternative_args": { "jurisdiction": "CZ", "source": "rpsh", "...": "..." },
  "human_message": "Czech political parties register is exposed via the RPSH sub-source."
}

Recommended client back-off

| Error | Action | |---|---| | 429 rate-limited | Sleep retry_after_ms, then retry once. | | 429 fanout | Don't retry the same call; route the next request to a country you've already hit in the window. | | 501 not_proxied_by_design | Don't retry. Surface alternative_url to the user. | | 501 alternative_tool_required | Re-issue with alternative_tool + alternative_args. | | 5xx upstream_error | Sleep retry_after_ms if present, else 30s. Max 3 retries. | | 4xx not_found | Don't retry. Re-search with search_companies to discover a valid id. |

A reference back-off implementation is published in every framework integration guide under /docs/integrations.

Ready-to-use skills

We publish 10 professional Claude Agent Skills for the most common OpenRegistry workflows. Drop them into your Claude Code project's .claude/skills/ directory or into any Claude-compatible agent — invoke by intent.

| # | Skill | Outcome in one prompt | |---|---|---| | 1 | [KYC & Cross-Border Due Diligence](./skills/kyc-cross-border-due-diligence/SKILL.md) | Full statutory dossier: profile + directors + UBO + shareholders + charges + latest accounts | | 2 ⭐ | [Cross-Border UBO Chain Walker](./skills/ubo-cross-border-chain-walker/SKILL.md) | Walk the ownership chain across jurisdictions until you reach the real individual | | 3 | [Director Search & PEP Screening](./skills/director-search-pep-screening/SKILL.md) | Every company a person has run + co-director network | | 4 | [Live Company Accounts & XBRL Financials](./skills/live-company-accounts-xbrl/SKILL.md) | Latest statutory accounts as machine-readable XBRL / iXBRL / PDF + key figures | | 5 | [Corporate Filing Monitor & Event Alert](./skills/corporate-filing-monitor/SKILL.md) | Material filings in a window, categorised and flagged | | 6 | [Global Company Name Availability Check](./skills/global-company-name-availability/SKILL.md) | Is a name free to register across 10+ countries? | | 7 | [Industry & Competitor Company Search](./skills/industry-competitor-search/SKILL.md) | Every company in a sector across N jurisdictions, ranked + enriched | | 8 | [Shell Company Detector](./skills/shell-company-detector/SKILL.md) | Flag 1-director + no-accounts + overseas-office shells (AML signal) | | 9 | [Phoenix Company Radar](./skills/phoenix-company-radar/SKILL.md) | Detect dissolved-then-reborn fraud patterns (same director, same address) | | 10 | [Sector Gatekeeper List](./skills/sector-gatekeeper-list/SKILL.md) | Every CIMA / FCA / BaFin / FSS-licensed regulated entity |

See [skills/README.md](./skills/README.md) for the skillpack overview.

Same 10 workflows, also as MCP prompts

Every skill above is also served by the MCP server as a named prompt — so any MCP-compatible client (Claude Desktop, Cursor, Cline, Goose, Zed, …) s

…

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: sophymarine
• Source: sophymarine/openregistry
• License: Apache-2.0
• Homepage: https://openregistry.sophymarine.com

Install and usage instructions live in the source repository linked above.