MCP server for Claude Code, Cursor, and claude.ai

The companies Bloomberg can't see, in your agent's context.

1.2 million private Swedish companies are on no terminal anywhere. Regna puts them, and every registered company across six markets, one MCP tool call away. Listed or private, straight from the national registries.

claude mcp add regna -e REGNA_API_KEY=rk_... -- \
  uvx --from git+https://github.com/regna-tech/regna-mcp-server regna-mcp

Get an API key, from $9/mo Read the source

Why Regna

Every other company-data MCP server wraps SEC EDGAR. This one covers private companies.

EDGAR means listed US filers only. Sweden alone has around 600 listed companies and 1.2 million private ones, and the same ratio holds across Norway, Finland, Denmark, and the UK. Regna covers both sides: annual accounts from Bolagsverket and Companies House, listed-issuer filings from FI Finanscentralen and EDGAR, ownership and registry changes from BRREG, PRH, and CVR as they publish. Listed or private, Stockholm to New York, one tool call, one API key.

Step 1 - Install

MCP install, 30 seconds.

Pick your client. Each command is one line; the server is the same Python package either way.

Claude Code (CLI)

claude mcp add regna \
  -e REGNA_API_KEY=rk_... -- \
  uvx --from \
    git+https://github.com/regna-tech/regna-mcp-server \
    regna-mcp

Claude Desktop — claude_desktop_config.json

{
  "mcpServers": {
    "regna": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/regna-tech/regna-mcp-server",
        "regna-mcp"
      ],
      "env": { "REGNA_API_KEY": "rk_..." }
    }
  }
}

Cursor — .cursor/mcp.json

{
  "mcpServers": {
    "regna": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/regna-tech/regna-mcp-server",
        "regna-mcp"
      ],
      "env": { "REGNA_API_KEY": "rk_..." }
    }
  }
}

Continue — .continue/config.yaml

mcpServers:
  - name: regna
    command: uvx
    args:
      - --from
      - git+https://github.com/regna-tech/regna-mcp-server
      - regna-mcp
    env:
      REGNA_API_KEY: rk_...

The git+https prefix is temporary — once the package lands on PyPI you'll be able to swap it for plain uvx regna-mcp-server. Both run the same code.

Step 2 - What you get

Nine tools, one API key.

Each tool maps to a Regna REST endpoint — same data shapes, same provenance, same SLA. Claude picks which to call.

lookup_company

Registry profile by 10-digit org number.

search_companies

Name or partial-name search across the registry.

validate_org_number

Luhn check and existence verification.

get_financials

Annual or quarterly financial data.

get_analysis

Health score, valuation, and risk assessment.

get_similar_companies

Peers by industry and geography.

get_company_events

Recent news, filings, and registry changes.

get_reports

Source filings (annual reports) for any company.

batch_lookup

Up to 100 companies in one call.

Try asking

> prompt

Look up org 5567037485 and pull five years of revenue and operating result.

> prompt

Compare Equinor and BP on revenue and operating margin.

> prompt

Screen for private Danish logistics companies, then batch-pull their latest annual accounts.

Step 3 - Skills (optional)

Pre-baked workflows for lookup, screen, compare, and research.

The skills package teaches Claude when to chain which tools so common tasks Just Work. Bilingual: English and Swedish prompts both trigger.

npx -y github:regna-tech/regna-claude-skills install

regna-lookup

Single-company registry profile.

regna-screen

Filter the universe by industry, revenue, or geography.

regna-compare

Side-by-side on financials and health.

regna-research

One-page deep-dive on a single company.

Use it from claude.ai (Cowork)

Same server, remote.

Claude Cowork in claude.ai connects to remote MCP servers over Streamable HTTP. Add Regna as a custom connector with your API key as the Bearer token.

Connector config

URL:    https://mcp.regnaverkt.com/mcp
Header: Authorization: Bearer rk_...

The hosted server is the same Python code as the local install — FastMCP runs both transports from one binary. Each request carries its own Bearer key, so quota and rate limits apply per-tenant just like the REST API.

Pricing

Start on Basic at $9/mo, or take a 14-day trial on any paid tier.

Basic

$9 /mo

1,200 req/month

20 req/min
AI chat · 15 per day
Billed from signup

Create account

Starter

$39 /mo

10,000 req/month

120 req/min
AI chat · 50 per day
14-day trial, card on file

Start 14-day trial, card required

Questions, answered.

Is there an MCP server for Nordic or European company data?

Yes. Regna is an MCP server for company data across Sweden, Norway, Finland, Denmark, the UK, and the US, including private companies. It runs at mcp.regnaverkt.com and installs in Claude Code, Cursor, Continue, Claude Desktop, and claude.ai.

Does it cover private companies or only listed ones?

Both. Listed coverage runs through FI Finanscentralen and SEC EDGAR. Private-company data comes from the national business registries, which no other company-data MCP server carries. In Sweden that difference is roughly 600 listed companies versus 1.2 million private ones.

Where does the data come from?

Primary regulators only: Bolagsverket (Sweden), BRREG (Norway), PRH (Finland), CVR (Denmark), Companies House (UK), SEC EDGAR (US), and FI Finanscentralen for listed Swedish issuers. No resellers in the chain.

Which MCP clients does it work in?

Claude Code, Cursor, Continue, Claude Desktop, and claude.ai. Anything that speaks MCP can connect to mcp.regnaverkt.com.

How is it priced?

Plans start at $9 per month. Every MCP tool call counts as one API request against your monthly quota, the same as a REST call.

Do I also get a REST API?

Yes. The nine MCP tools map one-to-one onto Regna REST endpoints, same data shapes and same API key. Use MCP in your agent and REST in your backend.

One install. Six markets. Every company, listed or private.

Get an API key Read the docs