L50 UK Company Data
io.github.lewisororke/l50-uk-company-datalewisororkestreamable-httpv1.2.0Scanned
New and overdue UK companies with director leads, plus director and owner changes. x402 USDC.
5 tools: 5 change things.
- Reads private data · 0
- Reads text others write · 5
- Can send data out · 0
- No findings
Anlyon alternative
5 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
5 tools
Changes things 5Claude Code: ask
companies_changesDirector appointments, resignations and owner (PSC) changes at up to 20 UK companies since a date, from Companies House.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it 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.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
companies_changes_feedNew UK director appointments, resignations and owner (PSC) changes from the last 24 hours across all companies, filtered by town, postcode, industry and change type.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it 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.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
companies_changes_feed_sampleFree: up to 3 rows from the daily UK director and owner changes feed, with the same filters as companies_changes_feed.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it 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.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
companies_newUp to 10 newly registered UK companies (Companies House) filtered by town, postcode or industry, with director, website check and email details.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it 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.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
companies_overdueUp to 10 UK companies with overdue (or soon-due) Companies House accounts, with director and email details.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it 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.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write5
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.2.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http l50-uk-company-data https://companies.l50automation.com/mcpclaude mcp add --transport http l50-uk-company-data https://companies.l50automation.com/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [],
"ask": [
"mcp__l50-uk-company-data__companies_new",
"mcp__l50-uk-company-data__companies_overdue",
"mcp__l50-uk-company-data__companies_changes",
"mcp__l50-uk-company-data__companies_changes_feed",
"mcp__l50-uk-company-data__companies_changes_feed_sample"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as l50-uk-company-data. Review it before you use it.
Capability tags behind 5 rules
- mcp__l50-uk-company-data__companies_new untrusted-input
- mcp__l50-uk-company-data__companies_overdue untrusted-input
- mcp__l50-uk-company-data__companies_changes untrusted-input
- mcp__l50-uk-company-data__companies_changes_feed untrusted-input
- mcp__l50-uk-company-data__companies_changes_feed_sample untrusted-input
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/io.github.lewisororke/l50-uk-company-data/verify?hash=5a5ad0ecc47cc64fbae1315a6d8ec17c0e5a529510b67abc80e00cef850f7eff" | jq -e '.changed == false'Pinned hash 5a5ad0ecc47c, from Nov 3, 2026, 22:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/io.github.lewisororke/l50-uk-company-data/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/io.github.lewisororke/l50-uk-company-data)Source: MCP Registry. Synced Nov 3, 2026, 22:17 UTC.