An MCP server for Swiss company data. Nine tools that look a company up by UID, search 790,000 of them by name or by statutory purpose, trace what changed in the commercial register, browse public tenders, check a bank licence, resolve a UID to an LEI and its group parent, and find federally funded research a company took part in.

npx swissco-mcp

All data comes from six open-data sources, none of which needs a credential: Zefix on LINDAS for the commercial register, the Amtsblattportal for the Swiss Official Gazette of Commerce, simap.ch for public procurement, FINMA for authorised banks and securities firms, GLEIF for the Legal Entity Identifier and group structure, and ARAMIS for federally funded research.

Built and maintained by Prospex, a Swiss B2B sales intelligence platform.

What this package is

This package is a launcher. The server itself is the Python package swissco-mcp, and this hands stdio straight through to it, so an npm-shaped host can start it with npx.

It needs uv on the path:

curl -LsSf https://astral.sh/uv/install.sh | sh

To skip the launcher entirely, install the Python package and run swissco-mcp:

pip install swissco-mcp

Register it

Claude Code takes one command:

claude mcp add swissco -- npx swissco-mcp

Anything that reads a JSON config takes the equivalent block:

{
  "mcpServers": {
    "swissco": {
      "command": "npx",
      "args": ["swissco-mcp"]
    }
  }
}

Tools

Tool	What it answers
`swissco_lookup`	Everything the register publishes about one company, optionally with its FINMA licence and its LEI
`swissco_search`	Companies whose legal name or statutory purpose contains a term
`swissco_publications`	Commercial-register publications from the gazette in a date range
`swissco_events`	One company's registry events, each confirmed against the publication's own UID
`swissco_tenders`	Public-procurement projects published on simap
`swissco_vendor`	Whether a company holds a simap vendor profile, and what it says
`swissco_finma`	Institutions on FINMA's list of authorised banks and securities firms
`swissco_lei`	A company's LEI, the entity that consolidates it, and the entity at the top of that chain
`swissco_research`	Federally funded research projects, Innosuisse and SNSF money included

Every tool returns rows, a count, and notes. The notes carry what each source covers, which is what turns an empty result into an answer: FINMA's list omits insurers and portfolio managers, and about 28,000 Swiss entities hold an LEI against roughly 790,000 in the register.

Configuration

Every tool works with nothing set.

Variable	Effect
`ZEFIX_USER`, `ZEFIX_PASSWORD`	Zefix PublicREST credentials, issued by `zefix@bj.admin.ch`. They add capital, status, former names and corporate relations to `swissco_lookup`, and a name-prefix search to `swissco_search`
`SWISSCO_STATE`	Where gazette bodies and the two FINMA files are cached. Defaults to `~/.swissco`
`SWISSCO_INTERVAL`	Seconds between requests. It can raise the floor of 0.5s and cannot lower it