UK Government & Public data for AI agents

Give your AI agent access to tax rates, company finances, property prices, legislation, and economic data. Ask questions in natural language — your agent handles the rest.

{
  "mcpServers": {
    "govdata": {
      "url": "https://mcp.govdata.dev/mcp",
      "headers": {
        "Authorization": "Bearer gd_live_..."
      }
    }
  }
}

See it in action

claude — govdata mcp
>
I'll look up BP's company record and check its filing deadlines.
lookup_company("BP plc")
Found: BP P.L.C. (00102498) — Active
company_filing_status(00102498)
The registry lookup confirms BP P.L.C. is active. Filing compliance is calculated from the company record's published due dates.
>
search_companies(query: "BP")
Company profiles come from the active Companies House register
About 5.9 million companies are available for registry lookup, search, and filing-status checks.
>
calculate_take_home(income: 55000, region: "scotland")
Calculated for 2026-27 tax year
On £55,000 in Scotland (2026-27):
Income tax: £11,082 (Starter + Basic + Intermediate + Higher)
National Insurance: £3,111
Take-home: £40,807 (£3,401/month)
>
lookup_bank_holidays(region: "england-and-wales")
Bank-holiday data covers 2019 to 2028
Query holidays by year and by region for England and Wales, Scotland, or Northern Ireland.
claude-sonnet-4 · govdata mcp context 38%

Works with your favourite AI tools

Connect via MCP — the open standard for AI tool integration.

What's available

47

Tools

  • Tax Calculations & Comparison
  • Company Analysis
  • Benefits & Employment, including ASHE earnings
  • Property Search, Address Lookup, UK HPI & Council Tax
  • Economics
  • Legislation
  • Food Hygiene Ratings
  • Ofgem Energy Price Cap
  • Crime
  • Calendar & Bank Holidays
24

Resources

  • Tax rates by year
  • VAT rates & bank holidays
  • Employment & benefits rates
  • Inflation & economic data
  • Company statistics & SIC codes
26

Prompts

  • Tax Summary
  • Company Report & Comparison
  • Take-Home & Employer Cost
  • Due Diligence
  • Property Area Report
  • Benefits Eligibility

Reference data

Built on live UK tax data

2026-27 rates are live across every calculator. Income Tax data starts at 1990-91; National Insurance data starts at 1999-00.

Marriage & Blind Person's Allowance

Income tax and take-home calculators support Marriage Allowance transfers and Blind Person's Allowance.

17 NI category letters

Employee and employer rates for every National Insurance category — standard, apprentices, Freeports, and Investment Zones.

Directors' NI & Employment Allowance

The directors' annual (cumulative) NI method, plus opt-in Employment Allowance on the employer cost calculator.

7 years of tax history

VAT, Capital Gains Tax, dividend tax, and Corporation Tax answer for every year back to 2020-21.

Prefer a REST API?

Every MCP tool and resource is also available as a traditional REST endpoint. Full OpenAPI documentation included.

View API documentation →

Pricing

100 free credits every month. Buy more when you need them — no subscriptions, no commitments.

How credits work

Resource reads Reference lookups

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Tool calls Calculations

10 credits

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