L50 UK Data API

io.github.lewisororke/l50-uk-datalewisororkestreamable-httpv1.2.0Scanned 3 hours ago

UK company leads, tenders, property prices, EPC, eBay and YouTube data. Pay per call with x402 USDC.

10 tools: 10 change things.

Reads private data · 0
Reads text others write · 10
Can send data out · 0
No findings

Anlyon alternative

10 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.

10 tools

Changes things 10Creates or changes something that can be changed back.Claude 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
ebay_marketLive eBay market for one keyword on 8 eBay sites: price range with postage, seller concentration, China share, cheapest listings, optional profit from your cost.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
Live eBay market for one keyword on 8 eBay sites: price range with postage, seller concentration, China share, cheapest listings, optional profit from your cost. Costs $0.02 per call, paid in USDC on Base with x402.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
epc_areasEnergy-rating (EPC) statistics for one council in England or Wales: share of homes or commercial buildings rated A to G, per postcode district.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
Energy-rating (EPC) statistics for one council in England or Wales: share of homes or commercial buildings rated A to G, per postcode district. Area-level only, no addresses. Costs $0.05 per call, paid in USDC on Base with x402.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
property_areaUK property report for one postcode district in England or Wales: Land Registry sold prices by property type with change on the previous period, EPC energy ratings and police.uk cr…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
UK property report for one postcode district in England or Wales: Land Registry sold prices by property type with change on the previous period, EPC energy ratings and police.uk crime. Area-level, no addresses. Costs $0.05 per call, paid in USDC on Base with x402.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
tendersUK public sector tenders open for bids, or contract awards with the winning suppliers (Companies House number, email, phone), from Find a Tender and Contracts Finder.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
UK public sector tenders open for bids, or contract awards with the winning suppliers (Companies House number, email, phone), from Find a Tender and Contracts Finder. Filter by keyword, CPV code, region and value. Up to 100 notices from the last 30 days, refreshed daily. Costs $0.05 per call, paid in USDC on Base with x402.
Annotations the server declares
- readOnlyHint: true
- openWorldHint: true
youtube_transcriptThe transcript of one YouTube video, Short or livestream as clean text, with title, channel, language and optional timestamped segments.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
The transcript of one YouTube video, Short or livestream as clean text, with title, channel, language and optional timestamped segments. Videos without captions are refused free. Costs $0.01 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 write10: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; companies_changes
companies_changes_feed
companies_changes_feed_sample
companies_new
companies_overdue
ebay_market
epc_areas
property_area
tenders
youtube_transcript
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.

All changes to this server

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

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

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

Run 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.

.claude/settings.json

{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__l50-uk-data__epc_areas",
      "mcp__l50-uk-data__ebay_market",
      "mcp__l50-uk-data__companies_new",
      "mcp__l50-uk-data__companies_overdue",
      "mcp__l50-uk-data__companies_changes",
      "mcp__l50-uk-data__companies_changes_feed",
      "mcp__l50-uk-data__tenders",
      "mcp__l50-uk-data__property_area",
      "mcp__l50-uk-data__youtube_transcript",
      "mcp__l50-uk-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-data. Review it before you use it.

Capability tags behind 10 rules

mcp__l50-uk-data__epc_areas untrusted-input
mcp__l50-uk-data__ebay_market untrusted-input
mcp__l50-uk-data__companies_new untrusted-input
mcp__l50-uk-data__companies_overdue untrusted-input
mcp__l50-uk-data__companies_changes untrusted-input
mcp__l50-uk-data__companies_changes_feed untrusted-input
mcp__l50-uk-data__tenders untrusted-input
mcp__l50-uk-data__property_area untrusted-input
mcp__l50-uk-data__youtube_transcript untrusted-input
mcp__l50-uk-data__companies_changes_feed_sample untrusted-input

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-data/verify?hash=e590ef8bd1661b01a514b0de16f4b8dd12b664cbdbb9620129f1f74fff4de138" | jq -e '.changed == false'

Pinned hash e590ef8bd166, from Nov 3, 2026, 21:18 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-data/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/io.github.lewisororke/l50-uk-data.svg)](https://anlyon.dev/servers/io.github.lewisororke/l50-uk-data)

Source: MCP Registry. Synced Nov 3, 2026, 22:17 UTC.