Lucairn MCP Server

Official client libraries for Lucairn - an EU-based privacy-preserving AI gateway. Lucairn sits between your application (or AI agent) and the upstream LLM provider you choose, removes personal data from prompts before the model ever sees them, and returns a signed Lucairn Certificate proving what was redacted, when, and by which sanitizer layer. It runs locally over stdio via the published package.

People connecting finance tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 2 · #81 OF 283 MAINTAINED FINANCE · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Lucairn MCP Server

before you install - you'll need

Set LUCAIRN_API_KEY before connecting. ANTHROPIC_API_KEY, OPENAI_API_KEY are optional or environment-specific per the README.

Claude Code

claude mcp add declade-lucairn-sdks -- npx -y @lucairn/mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "declade-lucairn-sdks": {
      "command": "npx",
      "args": [
        "-y",
        "@lucairn/mcp-server"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @lucairn/mcp-server - the @lucairn scope differs from the repo owner (declade); confirm it's the project's official package

registry namespace io.github.Declade is GitHub-verified and matches the repo owner

03 · Who maintains Lucairn MCP Server

lucairn-mcp-server is maintained by declade. It's the only MCP server we track from this author; the repo dates to Apr 2026.

04 · Facts

repository: github.com/declade/lucairn-sdks
website: https://lucairn.eu/developer/mcp
category: finance - ranked #81 of 283 actively-maintained finance servers as of 2026-08-25.
registry: io.github.Declade/lucairn-mcp-server (active, first published 2026-05-07 · 3 versions)
packages: npm:@lucairn/mcp-server

05 · Lucairn MCP Server FAQ

What is Lucairn MCP Server?

Is Lucairn MCP Server still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22. We re-verify nightly.

How do I install Lucairn MCP Server?

Run `npx -y @lucairn/mcp-server`. The README documents 3 environment variables (LUCAIRN_API_KEY, ANTHROPIC_API_KEY, OPENAI_API_KEY) to set first. Set LUCAIRN_API_KEY before connecting. ANTHROPIC_API_KEY, OPENAI_API_KEY are optional or environment-specific per the README. You can also paste the ready-made client config above.

Does Lucairn MCP Server run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

06 · Alternatives to Lucairn MCP Server

Alternatives to Lucairn MCP Server

Maintained finance servers if Lucairn MCP Server isn't the fit.

Pairs well with

Servers that cover what Lucairn MCP Server doesn't - only shown when the pairing reason fits the companion.

More finance MCP servers · Fiscal Brasil (dehor-labs) · Polymarket Agent MCP · DERO MCP Server · Onyx MCP

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