# io.github.vdmeu/registrum-mcp (remote · registrum.co.uk)

UK company data: profiles, iXBRL financials, directors, PSC chains, ECCTA. Hosted, no key.

- Trust score: 80/100 (high trust)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `registrum.co.uk`: 80/100 (this document), [markdown](https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp.md), [page](https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp)
- npm · `@registrum/mcp`: 93/100, [markdown](https://verifymcp.io/servers/vdmeu-registrum-mcp/registrum-mcp.md), [page](https://verifymcp.io/servers/vdmeu-registrum-mcp/registrum-mcp)

## Channel facts

- Endpoint: `https://registrum.co.uk/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2.0.7`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 9 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 2039 tokens (~226/item across 9 items; 9 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 9 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the io.github.vdmeu/registrum-mcp server?

io.github.vdmeu/registrum-mcp is a hosted endpoint at https://registrum.co.uk/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http vdmeu-registrum-mcp 'https://registrum.co.uk/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "vdmeu-registrum-mcp": {
      "url": "https://registrum.co.uk/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "vdmeu-registrum-mcp": {
      "type": "http",
      "url": "https://registrum.co.uk/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.vdmeu-registrum-mcp]
url = "https://registrum.co.uk/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "vdmeu-registrum-mcp": {
      "type": "remote",
      "url": "https://registrum.co.uk/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add vdmeu-registrum-mcp --url 'https://registrum.co.uk/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  vdmeu-registrum-mcp:
    url: "https://registrum.co.uk/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "vdmeu-registrum-mcp": {
      "Transport": "http",
      "Url": "https://registrum.co.uk/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add vdmeu-registrum-mcp -t streamable-http -u 'https://registrum.co.uk/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "vdmeu-registrum-mcp": {
      "type": "http",
      "url": "https://registrum.co.uk/api/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-06 (score 80, +1)

- [security] Stability: 0.97 → pass

### 2026-09-04 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-02 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-31 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-30 (score 76, −1)

- [security] Tool “get_psc_chain” rewrote its description, which is the text the model reads
- [security] Tool “get_psc” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 178 → 226
- [functional regression] Schema quality: 178 → 217
- [functional] New tool “get_bundle”

### 2026-08-29 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-27 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-26 (score 75, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

## MCP tools (9)

### `search_company` (~81 tokens)

Search for companies

Search for UK companies by name. Returns a list of matching companies with their company number, status, type, and registered address. Use this first when you only have a company name and need its company number.

Input parameters:

- `limit` (integer): Maximum number of results to return (default 20)
- `query` (string, required): Company name or keywords to search for

### `get_company` (~107 tokens)

Get company profile

Get an enriched profile for a UK company by its Companies House number. Returns name, status, type, incorporation date, registered address, SIC codes with descriptions, accounts status, confirmation statement status, and derived fields like company_age_years and accounts.overdue that are not available from the raw Companies House API.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.

### `get_financials` (~150 tokens)

Get company financials

Get structured financial data for a UK company, parsed from its iXBRL accounts filed at Companies House. Returns revenue, cost of sales, gross profit, operating profit, net profit, fixed assets, current assets, total equity, net assets, creditors, and average employees for the current and prior reporting year. Also includes accounts type (full/abbreviated/micro/dormant) and a data_quality block indicating which fields were extracted and which were absent from the filing. Cached for 7 days.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.

### `get_directors` (~209 tokens)

Get company officers (directors and secretaries)

Get the current and past officers for a UK company. Despite the tool name, not every entry is a director: the list is the full officer register, so each entry carries an officer_role such as 'director', 'secretary', 'corporate-secretary' or 'llp-member', plus an is_board_director boolean that is false for secretaries. Report each person by their own officer_role - never describe the whole list as directors. Each officer includes name, officer_role, is_board_director, appointment date, resignation date (if applicable), nationality, occupation, month and year of birth, ECCTA verification status, and a list of other companies they are or were appointed to, each with its own officer_role. This gives you a full picture of an officer's corporate history in one call.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.

### `get_compliance` (~205 tokens)

Check ECCTA identity-verification compliance

Check a UK company's ECCTA identity-verification status - who has verified their identity with Companies House, who is still pending, and who is overdue. The Economic Crime and Corporate Transparency Act requires every director and PSC to verify their identity; enforcement begins 18 November 2026, after which unverified officers can block filings. Returns per-company counts (directors_total, directors_verified, directors_pending, directors_overdue) and the same for PSCs, plus unverified_persons with each person's name, role, status and their individual deadline. IMPORTANT: 'pending' means the deadline has not yet passed - it is NOT a failure and must not be reported as one. Only 'overdue' means a deadline was missed. Requires a Pro plan or above. Cached for 24 hours.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.

### `get_psc` (~236 tokens)

Get persons with significant control

Get the PSC (Persons with Significant Control) register for a UK company. Returns individuals, corporate entities, and legal persons who own 25%+ of shares, hold 25%+ of voting rights, or have significant influence or control. Each PSC includes decoded control types in plain English (e.g. 'Owns 25-50% of shares' instead of raw codes). Individual PSCs also carry ECCTA identity verification: verification_status (verified, pending, overdue or unknown), identity_verified, identity_verified_on, and verification_deadline. pending means that person's deadline has not yet passed and is not a compliance failure; unknown means Companies House publishes no record for them, an absence of data rather than a breach. Only overdue means a deadline was missed. Corporate entity PSCs include their company number for ownership chain traversal, and carry none of the verification fields. Also detects PSC exemptions for listed PLCs. Cached for 24 hours.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.

### `get_bundle` (~301 tokens)

Get a whole company in one request

Get several views of one UK company in a single request: profile, ECCTA compliance, financials, PSCs and directors. Prefer this over calling get_company, get_compliance, get_financials, get_psc and get_directors separately - it returns the same data for one API call and one credit instead of five, and in a single round trip. Pass include to fetch only the sections you need; omit it to get all five. The profile is always returned. Partial results are normal and are not errors: any section can come back null when it is unavailable for that company or not included in the caller's plan - financials are null for a company that has filed no machine-readable accounts, and compliance requires a Pro plan. Report a null section as 'not available', never as a failed lookup or as an absence of the underlying fact. Only a missing company is an error, and that is a 404. Each section carries exactly what its own endpoint returns, including ECCTA verification_status on individuals, so the pending-versus-overdue rules apply here too.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.
- `include` (array): Sections to fetch. Omit for all five. Valid values: profile, compliance, financials, psc, directors. The profile is always included regardless.

### `get_psc_chain` (~433 tokens)

Resolve PSC ownership chain to find ultimate beneficial owners

Trace the full ownership chain for a UK company by recursively following corporate entity PSCs. Returns a tree showing who ultimately controls the company - natural persons (UBOs), foreign entities, or legal persons - along with why each branch terminated. Each node has a terminal_reason: natural_person, foreign_entity, legal_person, super_secure, unverified_registry, unknown_kind, depth_limit, not_found, cycle_detected, or psc_exempt. Two of those are easy to misread: unverified_registry means a registration number was filed but cannot be tied to the Companies House register (a foreign registry, or one we do not recognise), which is a finding about the ownership structure and not an error or an outage; unknown_kind means Companies House returned a PSC type we do not classify, with the raw value in kind_raw. ECCTA identity verification: every individual node, at any depth including the ultimate beneficial owners this chain exists to find, carries verification_status (verified, pending, overdue or unknown), identity_verified (true, false for overdue only, or null otherwise), identity_verified_on, and verification_deadline. IMPORTANT: pending means that person's own deadline has not yet passed - it is not a compliance failure and must not be reported as one. A status of unknown means Companies House publishes no record for them, which is an absence of data rather than a breach. Only overdue means a deadline was missed. Corporate, legal-person and super-secure nodes carry none of these fields, so never describe a company itself as having unverified identity. chain_metadata reports how many companies were resolved and the total API credit cost. Use this for KYB (Know Your Business) checks, AML screening, or any task requiring beneficial ownership beyond the immediate PSC layer.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.
- `max_depth` (integer): Maximum chain depth to traverse (1-10, default 5). Each level costs 1 upstream API call per corporate entity found.

### `get_network` (~149 tokens)

Get director network

Map the corporate network connected to a UK company via shared directors. Returns all companies connected through shared board members, up to the specified depth. Each connected company includes its name, number, status, and the directors it shares with the focal company. Useful for identifying corporate group structures, related party relationships, and director interlocks.

Input parameters:

- `company_number` (string, required): Companies House company number, e.g. '00445790' for Tesco PLC. Numeric-only numbers should be zero-padded to 8 digits.
- `depth` (integer): Traversal depth: 1 = direct connections only, 2 = connections of connections (default 1). Depth 2 can return many results for large companies.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp#diagnostics

## Score history

- 2026-09-20: 80
- 2026-09-19: 80
- 2026-09-18: 80
- 2026-09-17: 80
- 2026-09-16: 80
- 2026-09-15: 80
- 2026-09-14: 80
- 2026-09-13: 80
- 2026-09-12: 80
- 2026-09-11: 80
- 2026-09-10: 80
- 2026-09-09: 80
- 2026-09-08: 80
- 2026-09-07: 80
- 2026-09-06: 80
- 2026-09-05: 79
- 2026-09-04: 79
- 2026-09-03: 78
- 2026-09-02: 78
- 2026-09-01: 77
- 2026-08-31: 77
- 2026-08-30: 76
- 2026-08-29: 77
- 2026-08-28: 76
- 2026-08-27: 76
- 2026-08-26: 75
- 2026-08-25: 74
- 2026-08-24: 73
- 2026-08-23: 73
- 2026-08-22: 72

## Common questions

### What is the io.github.vdmeu/registrum-mcp server?

io.github.vdmeu/registrum-mcp is listed in the public MCP registry as io.github.vdmeu/registrum-mcp. UK company data: profiles, iXBRL financials, directors, PSC chains, ECCTA. Hosted, no key. This page covers its hosted endpoint (https://registrum.co.uk/api/mcp).

### Is the io.github.vdmeu/registrum-mcp server safe to use?

io.github.vdmeu/registrum-mcp scores 80 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.vdmeu/registrum-mcp server expose?

io.github.vdmeu/registrum-mcp exposes 9 tools: search_company, get_company, get_financials, get_directors, get_compliance, and 4 more. Their descriptions and schemas cost roughly 1,871 tokens of context every time the server is loaded.

### Does the io.github.vdmeu/registrum-mcp server require authentication?

No. We connected to io.github.vdmeu/registrum-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.vdmeu/registrum-mcp server still maintained?

io.github.vdmeu/registrum-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://registrum.co.uk/api/mcp
- Repository: https://github.com/vdmeu/registrum-mcp
- Changelog RSS feed: https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/vdmeu-registrum-mcp/api-mcp