Lucairn Sdks MCP Server

Official client libraries for **[Lucairn](https://lucairn.eu)** — an EU-based privacy-preserving AI gateway. Lucairn sits between your application

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What is the Lucairn Sdks 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. That is what the lucairn sdks mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.

The short version

  • Layer 1 — — Known-entity matching (your tenant's named entities)
  • Layer 2 — — Presidio NER (names, emails, IBANs, addresses, phone numbers, customer IDs, …)
  • Layer 3 — — GPU-hosted custom-trained PII shield (Enterprise tier only, optionally trained on your domain corpus)
  • Developer (free) — — placeholders are returned verbatim. Useful for testing the redaction surface
  • Pro / Enterprise — — placeholders are re-linked back to the originals on the gateway before the response reaches your application

Getting it running

Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.

What it needs from you

Configuration is passed through the environment: LUCAIRN_API_KEY, ANTHROPIC_API_KEY, OPENAI_API_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Things to watch

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

How it compares

This sits in the AI and media services group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. It is maintained by declade; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

How to install the Lucairn Sdks MCP server

{
  "mcpServers": {
    "lucairn-sdks": {
      "command": "npx",
      "args": ["-y", "@lucairn/mcp-server"],
      "env": {
        "LUCAIRN_API_KEY": "your-value",
        "ANTHROPIC_API_KEY": "your-value",
        "OPENAI_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
LUCAIRN_API_KEYCredential the server authenticates with.Yes
ANTHROPIC_API_KEYCredential the server authenticates with.Yes
OPENAI_API_KEYCredential the server authenticates with.Yes

Frequently asked questions

It connects Lucairn Sdks to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with Lucairn Sdks directly.