Lucairn is an EU-based privacy gateway that sits between your MCP-enabled agent and the upstream LLM (Claude, GPT-4o, o1/o3/o4).
What it does:
- Automatically detects and replaces PII — names, emails, IBANs, addresses, phone numbers, customer IDs — with placeholders before reaching the upstream LLM. The model never sees the raw values.
- Each response carries a signed compliance certificate (ed25519 + RFC 3161 timestamp + Sigstore Rekor inclusion proof) that proves what was redacted, when, and by which sanitizer layer.
- Cross-provider BYOK: bring your own ANTHROPIC_API_KEY and/or OPENAI_API_KEY. Routing is automatic by model prefix (claude-* → Anthropic, gpt-* / o1-* → OpenAI).
- Free Developer tier with 1,000 requests/month. Pro and Enterprise tiers unlock higher quotas and re-linkage of placeholders to original values in the response.
Exposes one MCP tool, `chat_via_lucairn`, using the Anthropic Messages API wire format. Compatible with any MCP client (Claude Desktop, Cline, Continue, Cursor, etc.).
Source: https://github.com/Declade/lucairn-sdks
Glama listing: https://glama.ai/mcp/servers/Declade/lucairn-sdks
Docs: https://lucairn.eu
服务器配置
{
"mcpServers": {
"lucairn": {
"url": "https://gateway.lucairn.eu/mcp",
"headers": {
"Authorization": "Bearer <YOUR_LUCAIRN_API_KEY>"
}
}
}
}