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Read-only probes

MCP server · Data access / search

L50 UK Company Data

By lewisororke

UK company lookup (directors, owners, filings), name search, new and overdue companies. x402.

WebsiteSource codeSearch & web dataFinance & payments
Connect to L50 UK Company Data
Checks passed
11 / 22

3 failed · 8 not measured

Median response
80 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
8

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
222

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 80 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name l50-companies.

  • Pass
    Lists tools

    tools/list returned 8 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 80 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 80 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    12 of 29 parameters have a description (41%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Fail
    Repo owner matches

    The GitHub repository owner does not match the namespace login.

  • Pass
    Recently updated

    Updated 2026-11-09T19:57:45.947553Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using L50 UK Company Data

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http l50-uk-company-data https://companies.l50automation.com/mcp

Capabilities

Tools 8

companies_changes

Director appointments, resignations and owner (PSC) changes at up to 20 UK companies since a date, from Companies House. Costs $0.05 per call, paid in USDC on Base with x402.

Discovered
companies_changes_feed

New UK director appointments, resignations and owner (PSC) changes from the last 24 hours across all companies, filtered by town, postcode, industry and change type. Up to 100 rows, refreshed daily from Companies House. Costs $0.10 per call, paid in USDC on Base with x402.

Discovered
companies_changes_feed_sample

Free: up to 3 rows from the daily UK director and owner changes feed, with the same filters as companies_changes_feed. Try before you pay.

Discovered
companies_new

Up to 10 newly registered UK companies (Companies House) filtered by town, postcode or industry, with director, website check and email details. Costs $0.10 per call, paid in USDC on Base with x402.

Discovered
companies_officer

Every UK company a person is or was an officer of (director, secretary, LLP member): search by name or Companies House officer id; returns each match's appointments with company, role, dates and company status. Costs $0.02 per call, paid in USDC on Base with x402.

Discovered
companies_overdue

Up to 10 UK companies with overdue (or soon-due) Companies House accounts, with director and email details. Leads for accountants. Costs $0.20 per call, paid in USDC on Base with x402.

Discovered
companies_profile

Full profile of one UK company from Companies House: status, industry (SIC with plain description), accounts and confirmation statement due dates and overdue flags, current directors with their other active appointments, owners (persons with significant control), last 10 filings, charges and insolvency flags. Costs $0.03 per call, paid in USDC on Base with x402.

Discovered
companies_search

Search UK companies by name on Companies House: best matches with company number, status, type, incorporation date and town/postcode. Costs $0.01 per call, paid in USDC on Base with x402.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected80 ms8

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