Side-by-Side Model Context Protocol Comparison
Courtlistener MCP Server vs Registeroracle
In-depth architectural comparison of the Courtlistener MCP Server and Registeroracle MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Courtlistener MCP Server
Legal · Local stdio
Quality: 51/100 (Good) | Auth: No auth required
Registeroracle
Legal · Remote HTTP/SSE
Quality: 49/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Courtlistener MCP Server if you need specialized Legal tools running via a local process. Choose Registeroracle if your workspace requires Legal integration with remote web transport. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
Choose Courtlistener MCP Server when:
- You need dedicated capabilities in the Legal domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: courtlistener_search_opinions, courtlistener_get_opinion, courtlistener_get_citations.
Choose Registeroracle when:
- You need dedicated capabilities in the Legal domain.
- You prefer remote streaming HTTP/SSE transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: register_provider, list_providers, get_provider.
Feature & Specification Comparison
Tools & Capabilities Breakdown
Courtlistener MCP Server Tools (14)
courtlistener_search_opinions
Full-text search across 9M+ written court opinions with field-level filtering, date ranges, status, and sort
courtlistener_get_opinion
Fetch full text and metadata for an opinion cluster — returns all opinion variants (majority, concurrence, dissent)
courtlistener_get_citations
Retrieve the citation network for an opinion: opinions cited by it (`citing`) or that cite it (`cited_by`)
courtlistener_lookup_citation
Resolve legal citations (e.g., "410 U.S. 113") to cluster IDs and case metadata — one entry per citation found in the input
courtlistener_search_dockets
Search RECAP federal court dockets by party name, attorney, court, and date
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Courtlistener MCP Server Configuration
Registeroracle Configuration