Connect lawstronaut to Claude, ChatGPT, Cursor, and any AI agent that speaks the Model Context Protocol. Connect your AI to 50+ million laws and court cases!
Lawstronaut Legal Research is an MCP project maintained in the lawstronaut-fzco/lawstronaut-mcp repository. The maintainer describes its purpose as “Connect lawstronaut to Claude, ChatGPT, Cursor, and any AI agent that speaks the Model Context Protocol. Connect your AI to 50+ million laws and court…”. Read the project documentation for the complete scope.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_jurisdictions | List all jurisdictions (countries/states) in the Lawstronaut corpus — call first to get valid ISO codes for other tools |
| list_domains | List legal domains with optional name filter and pagination |
| domain | Filter domains by name (string, optional) |
| limit | Number of results to return (number, optional) |
| offset | Number of results to skip (number, optional) |
| list_subdomains | List subdomains for a domain ID — filter by name, paginate results |
| domain_id | Filter by Domain ID (string, required) |
| subdomain | Filter subdomains by name (string, optional) |
| list_categories | List legal categories for a subdomain — filter by name, paginate results |
| subdomain_id | Filter by Subdomain ID (string, optional) |
| category_name | Filter categories by name (string, optional) |
| list_subcategories | List subcategories for a category ID — filter by name, paginate results |
| category_id | Filter by Category ID (string, required) |
| subcategory_name | Filter subcategories by name (string, optional) |
| list_law_types | List law types for a subcategory ID — filter by name, paginate results |
| subcategory_id | Filter by Subcategory ID (string, required) |
| law_type | Filter law types by name (string, optional) |
| list_portals | List legal portals for a jurisdiction — filter by name, language, or tag |
| iso | Document's jurisdiction ISO code, e.g. 'IE', 'NL', 'US', etc (string, required) |
| tag | Filter by tag (string, optional) |
| lang | Filter by language (string, optional) |
| list_authority_types | List authority types for a jurisdiction — filter by portal or authority type |
| portal_name | Filter by portal name (string, optional) |
| authority_type | Filter by authority type (string, optional) |
| list_issuing_authorities | List issuing authorities for a jurisdiction — filter by portal or authority name |
| issuing_authority | Filter by issuing authority (string, optional) |
| list_documents | List legal documents in a jurisdiction — filter by title, dates, portal, status, tags, and more |
| portal | Filter by portal name (string, optional) |
| version | Version (integer, required) |
| document_id | Numeric document_id from any listing/search tool (integer, required) |
| repealed | Filter by repealed status (boolean, optional) |
| title | Filter by title (string, optional) |
| section_title | Filter by section title (string, optional) |
| url | Filter by URL (string, optional) |
| status | Filter by status (string, optional) |
| crawling_date | Filter by crawling date (string, optional) |
| last_updated | Filter by last updated date (string, optional) |
| last_amendment | Filter by last amendment date (string, optional) |
| publication_date | Filter by publication date (string, optional) |
| expiration_date | Filter by expiration date (string, optional) |
| effective_date | Filter by effective date (string, optional) |
| date_of_enactment | Filter by date of enactment (string, optional) |
| date_of_decision | Filter by date of decision (string, optional) |
| file_data_only | Return only file-related data (boolean, optional) |
| type_of_authority | Filter by type of authority (string, optional) |
| source_identifier | Filter by source identifier (string, optional) |
| source_secondary_identifier | Filter by secondary source identifier (string, optional) |
| get_document_text | Get full text of documents matching jurisdiction and filter criteria |
| get_markdown | Get document body as markdown for matching jurisdiction and filters |
| get_source_url | Get a time-limited signed URL to the original source file (PDF, etc.) |
| get_document_with_version | Get a specific document at a specific version with full metadata |
| horizon_scan | Scan recent legal changes in a jurisdiction — filter by topic, date window, and authority |
| since | Start of date window for the scan (string, optional) |
| topic | Topic or keyword to focus the scan (string, optional) |
| date_field | Which date field to use for the window (string, optional) |
| include_repealed | Include repealed documents (boolean, optional) |
| max_per_jurisdiction | Maximum results per jurisdiction (integer, optional) |
| evidence_pull | Get full citation chain for a document — metadata, legal link, source URL, and body text |
| include_text | Include document body text (boolean, optional) |
| include_source_url | Include signed source URL (boolean, optional) |
| text_format | Format for included text (e.g. markdown or plain) (string, optional) |
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