Eu Reg

An MCP server that gives AI agents cited, review-gated grounding in EU regulation. Agents answering crypto or AI-compliance questions can check a live official register and cite pinpoint provisions instead of guessing.

Five tools:

Tool	What it does	Needs
search_micar_register	Look up an entity by name or LEI in the ESMA interim MiCAR register: white papers (Titles II–IV), authorised CASPs, non-compliant entities	—
micar_register_summary	Current register totals and white paper format coverage	—
micar_register_changes	Register movement: new filings, changed entries, removals (withdrawal tracking)	—
lint_micar_whitepaper	Deterministic Annex I–III lint of a draft white paper: cited candidate findings	lint extra
classify_eu_ai_act_system	EU AI Act risk-tier classification with pinpoint Art. 5 / Annex III / GPAI citations	classify extra

Register data comes from the MiCAR Register Observatory, which snapshots the public ESMA register weekly (Art. 109 VO (EU) 2023/1114). The linter is micar-whitepaper-linter (35 rules mapped to Annex I–III); the classifier is eu-ai-act-classifier.

Install

Claude Code

claude mcp add eu-reg -- uvx --from git+https://github.com/sebastianfoerste/eu-reg-mcp eu-reg-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "eu-reg": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/sebastianfoerste/eu-reg-mcp", "eu-reg-mcp"]
    }
  }
}

The three register tools work with no configuration and no API key. The lint and classify tools need their optional extras:

uv pip install 'eu-reg-mcp[lint] @ git+https://github.com/sebastianfoerste/eu-reg-mcp'
uv pip install 'eu-reg-mcp[classify] @ git+https://github.com/sebastianfoerste/eu-reg-mcp'

Note: the linter and classifier packages are source-available under their own licenses (portfolio display, reference, and evaluation use), not MIT — see their repositories before production use. Without the extras, both tools return an install hint instead of failing.

Try it

Ask an agent with this server connected:

• "Is <entity> on the MiCAR register, and what format is its white paper?"
• "What changed on the MiCAR register recently — any removals?"
• "Classify this AI system under the EU AI Act" (paste a system profile; call with an empty string to get the schema).

Guardrails

Every response carries its framing: register results are facts from a public register with the snapshot date; lint and classification outputs are candidate flags from deterministic rules, pending human legal review. Extraction artifacts exist. Nothing this server returns is a legal assessment of any entity or legal advice — that is a design contract, not a disclaimer.

Development

git clone https://github.com/sebastianfoerste/eu-reg-mcp
cd eu-reg-mcp
make install && make test

Tests run offline against fixtures. The server itself is MIT-licensed.