MCP.Market

CompanyStack MCP server

online · 100% uptime
by companystack.co.uk·uk.co.companystack/mcp·v0.1.1
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UK company data: search, officers, owners, shareholders, filed accounts, new companies, KYB checks.

B77/100grade B
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Safety scan
B77/100

full report

Adoption
New

Little public usage data yet

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

CompanyStack tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 747ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenanceno repository listed3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 77/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How CompanyStack compares

Against every graded Web search MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
77/100
higher than 55% of 3,470 Web search servers
Uptime
100%
of our recent checks; the typical remote Web search server answers 100%
Response time
754 ms
faster than 16% of 2,238 Web search servers

Release history: 2 versions in the registry since 2026-10-10, latest 2026-10-12, typically one every 2 days.

Install CompanyStack in Claude Code, Cursor or VS Code

claude mcp add --transport http mcp https://api.companystack.co.uk/mcp
Add to Cursor

CompanyStack: common questions

Is CompanyStack MCP server safe?
Mostly: it is graded B (77/100). Read the CompanyStack safety report
How do I install CompanyStack?
It runs remotely at api.companystack.co.uk. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does CompanyStack need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is CompanyStack maintained?
The latest release is v0.1.1.
Is CompanyStack up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of CompanyStack?
Servers from other publishers that do the same job: The Company Atlas MCP server, Chatroost — unofficial Telegram MCP server and Tenjin MCP server.
How does CompanyStack compare with other Web search MCP servers?
safety score 77/100 (higher than 55% of 3,470 Web search servers); uptime 100% (of our recent checks; the typical remote Web search server answers 100%); response time 754 ms (faster than 16% of 2,238 Web search servers). Full comparison.

Alternatives to CompanyStack

Same job from other publishers: the closest match first, then the best rated.

  • The Company Atlas
    Global customs trade data and company registry. Search shipments, and look up legal entities.
    B
  • Chatroost — unofficial Telegram MCP server
    Unofficial Telegram MCP server — read, search, reply and react in your own Telegram account.
    A
  • Tenjin
    Search, read & publish paid essays. Pay-per-read in USDC on Base (x402); wallet-only, no account.
    B
  • freehire
    freehire.me: search 3.3M+ IT jobs from 294K company boards, track applications, tailor CVs.
    A
  • Jobseek
    Search jobs and companies on Job Seek (jseek.co)
    A