caselegis-mcp
Enables searching, retrieving, and checking citation status of California legal opinions via the Caselegis API.
README
caselegis-mcp
California case law research tools for Claude Desktop, Cursor, and any MCP-compatible AI assistant.
Powered by Caselegis — search 566,000+ California opinions, check citation status (Red/Yellow/Green), and trace citation networks, all from inside your AI assistant.
Setup
1. Get an API key at caselegis.com/settings → API Keys.
2. Add to Claude Desktop (~/.claude/claude_desktop_config.json):
{
"mcpServers": {
"caselegis": {
"command": "uvx",
"args": ["caselegis-mcp"],
"env": { "CASELEGIS_API_KEY": "brfl_..." }
}
}
}
3. Restart Claude. The Caselegis tools will appear automatically.
Tools
| Tool | What it does |
|---|---|
get_quota |
Check remaining monthly queries (free, doesn't count) |
search_cases |
Full-text search with court, date, and sort filters |
get_case |
Retrieve full opinion text and metadata |
get_citation_status |
Red/Yellow/Green — is this case still good law? |
get_citations |
Cases this opinion cites (outgoing) |
get_cited_by |
Cases that cite this opinion (incoming), filterable by treatment |
Quota
| Plan | Queries/month |
|---|---|
| Free | 50 |
| Pro | 2,000 |
Upgrade at caselegis.com/settings.
Configuration
| Variable | Required | Description |
|---|---|---|
CASELEGIS_API_KEY |
Yes | Your API key (brfl_...) |
CASELEGIS_API_URL |
No | Override the API URL (default: production) |
License
MIT
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