OpenLaws MCP. Access verified law data from any AI agent.

Look, forget jumping between government websites and trying to cross-reference sources manually. OpenLaws lets your AI client connect directly to massive, validated legal databases—statutes, regulations, and case law across 50+ jurisdictions. You'll use this server to search laws by keyword (BM25), validate citations instantly, or track legislative changes over time.

This gives you verifiable legal data straight through conversation.

Searching Statutes Across Jurisdictions

You need to know what the law says? Start with search_statutes. You can run a keyword search against federal and state statutes simultaneously, surveying all 50 states at once, or scope that search down if you only care about one region. Once you find an ID using search_statutes, you retrieve the full text of the law using get_statute.

This tool gives you the complete statute content along with effective dates and annotations.

Tracking how laws change is crucial, too. If you need to see what was added or deleted between legislative sessions, use get_redline_comparison to compare two versions of a federal statute. For seeing every historical shift, get_statute_history pulls all the past versions and amendments for that specific federal statute ID.

Querying Case Law Opinions

Want case law? You start by searching using search_caselaw, which takes keywords across millions of cases. You can narrow this down further, optionally filtering results by a court or circuit ID. Once you get the specific case ID, run get_caselaw_opinion to fetch the full text of that court opinion. That output includes details on the parties and any citations used.

For constitutional law, you have two options: search for keywords across The U.S. Constitution and all 50 state constitutions using search_constitutions, or if you already know the ID, grab the complete constitution content with get_constitution.

Regulations and Compliance Checks

If statutes aren't enough, you need regulations. Use search_regulations to query codes across multiple jurisdictions using keywords; remember you can filter results by jurisdiction ID if you want to focus your search. To get the full content of a specific state or federal regulation, use get_regulation with its unique ID.

For compliance monitoring, get_recent_updates shows you recent legal changes and updates for an entire set of jurisdictions or just one specified federal/state area.

Validation and Jurisdiction Scope

The most critical function is knowing if your source material is legit. You can't trust a citation just because it looks right. Use validate_citation to check if any given legal citation is formatted correctly and find its authoritative source document across all major jurisdictions.

Need to know what databases you're even working with? Run list_jurisdictions. This function lists every single available legal jurisdiction—federal, the 50 states, DC, PR—and gives you their required IDs. If you need details on one of those listed areas, use get_jurisdiction with an ID found through list_jurisdictions.

This server makes sure your AI agent never gets lost in a sea of outdated or incorrect legal documents.