Eu Reg MCP vs Nexus Legal MCP
A side-by-side look at the Eu Reg MCP and Nexus Legal MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Eu Reg MCPLegal · Local subprocess (stdio)ESMA MiCAR register search, summaries and change tracking via weekly snapshots, plus MiCAR white paper linting and EU AI Act risk-tier classification.55GoodAuth: no auth requiredVerdict: choose Eu Reg MCP for legal work as a local process; choose Nexus Legal MCP for legal as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Eu Reg MCP when
- You need dedicated capabilities in the Legal domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
search_micar_register, micar_register_summary, micar_register_changes.
Choose Nexus Legal MCP when
- You need dedicated capabilities in the Legal domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
NEXUS_API_KEY.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | Eu Reg MCP | |
|---|---|---|
| Category | Legal | Legal |
| Quality signal | 55/100 · Good | 51/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | API key required |
| Pricing | Free | Paid service |
| Required env vars | None listed | NEXUS_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 2 |
| Directory activity | 0 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 5 | Not listed |
| Full listing | View Eu Reg MCP | View Nexus Legal MCP |
Tools & capabilities
Eu Reg MCP tools 5
search_micar_registerLook up an entity by name or LEI in the ESMA interim MiCAR registermicar_register_summaryRegister totals and white paper format coveragemicar_register_changesNew filings, changed entries, removalslint_micar_whitepaperDeterministic Annex I–III lint of a draft white paperclassify_eu_ai_act_systemAI Act risk tier with pinpoint citations
Nexus Legal MCP tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Eu Reg MCP
{
"mcpServers": {
"sebastianfoerste-eu-reg-mcp": {
"command": "uvx",
"args": [
"eu-reg-mcp"
]
}
}
}
Nexus Legal MCP
{
"mcpServers": {
"djtellado-nexus-legal-mcp": {
"command": "npx",
"args": [
"-y",
"@nexus-legal/mcp"
],
"env": {
"NEXUS_API_KEY": "YOUR_NEXUS_API_KEY_HERE"
}
}
}
}
Frequently asked questions
Eu Reg MCP is categorized under Legal and uses a local stdio subprocess. Nexus Legal MCP belongs to Legal and uses a local stdio subprocess. Pick Eu Reg MCP for legal work and Nexus Legal MCP for legal.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Eu Reg MCP is listed as free. Auth: no auth required. Nexus Legal MCP is listed as a paid service. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add sebastianfoerste-eu-reg-mcp and djtellado-nexus-legal-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Eu Reg MCP has a quality signal of 55/100 (Good) with 0 views, 0 installs and 0 GitHub stars. Nexus Legal MCP has 51/100 (Good) with 3 views, 0 installs and 2 GitHub stars.