INPUT: your agents and apps. OUTPUT: one shared set of 18,000+ legal tags they all speak.
Your agents talk to FOLIO's agents. Claude, Codex, and other MCP clients can search concepts, walk the hierarchy, and tag text.
Build on FOLIO
The FOLIO ontology and all of its tools are free and open source. Pick the connection that fits your stack.
Free and open to any origin. Fetch any concept as HTML, RDF, Markdown, or JSON.
Build with it
pip install folio-python, then search, query, and traverse the ontology in code.
Build with it
pip install folio-python
The shared schema Enrich and Insights use to record legal propositions.
Build with it
pip install folio-propositions
Download FOLIO's 18,000+ concepts as FOLIO.owl (CC BY 4.0).