US Codex
Search and browse federal law: the United States Code, the Code of Federal Regulations, congressional bills, public laws and executive orders — cross-linked, with historical versions, legislative lineage and the authority relationships between statute and regulation.
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Last probed Sep 14, 2026 · uscodex.org
15tools discovered
Usc Search
Search the full text of the United States Code across all 54 titles or within a specific title/chapter, returning ranked statutory provisions with snippets and Bluebook-ready citations.
Usc Fetch Section
Retrieve the authoritative text and metadata of a United States Code section. Supports fetching specific subdivisions (e.g. subsection (a)(1)), historical OLRC release points, and statutory apparatus notes.
Usc Lookup Citation
Parse, normalize, and resolve any standard legal citation for federal statutes and court rules (e.g., '11 U.S.C. § 507(a)(1)', '26 USC 501(c)(3)', '42 U.S.C. 1983', 'Fed. R. Civ. P. 12(b)(6)') to its canonical section, title, and current text snippet.
Usc Get Citations
Statutory Citator: Retrieve all provisions across the United States Code that cite a given section or subdivision (cross-references and statutory backlinks).
Usc Diff Sections
Compare statutory changes to a US Code section between two OLRC release points from 2013 to present. Returns subdivision-by-subdivision edits, enactments, repeals, and amendment diffs.
Usc List Titles
List all 54 titles of the United States Code, including their formal names, positive law enactment status (under 1 U.S.C. § 204), and section counts.
Usc List Releases
List all historical OLRC release points available in the database from 2013 to present with their corresponding Public Law coverage and enactment metadata.
Cfr Search
Search the full text of the Code of Federal Regulations (eCFR) across all 50 titles or within a specific title, returning ranked regulatory sections with text snippets.
Cfr Fetch Section
Retrieve the authoritative text, statutory authority backlinks, and regulatory notes of a Code of Federal Regulations section.
Cfr Lookup Citation
Parse, normalize, and resolve any standard legal citation for federal regulations (e.g. '12 C.F.R. § 226.1', 'Title 12 CFR 226.1') to its canonical section, title, and current text snippet.
Cfr Get Citations
Regulatory Citator: Retrieve statutory authority links (U.S. Code) and inbound regulatory cross-references for a given CFR section.
Cfr Diff Sections
Compare regulatory changes to a CFR section between releases.
Cfr List Titles
List all 50 titles of the Code of Federal Regulations (eCFR), including their names and section counts.
Cfr List Releases
List available release points of the Code of Federal Regulations.
Uscodex Search
Unified cross-corpus search across BOTH the United States Code (USC statutes) and the Code of Federal Regulations (CFR regulations). Returns ranked provisions from both corpora with citations and snippets.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsSearch and browse federal law: the United States Code, the Code of Federal Regulations, congressional bills, public laws and executive orders — cross-linked, with historical versions, legislative lineage and the authority relationships between statute and regulation.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
MCPBundles probed 15 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
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