US law MCP: bills, US Code, Federal Register, executive orders, case law (state+federal), eCFR
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
Not yet automatically verified
We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.
Manual Client & Custom JSON ConfigExpand JSON ▾
Client Config & Setup
Choose your client or environment
Target File:
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
us-eli-mcp
MCP server for US law with verifiable citations. Five sources behind ten read-only tools:
- Congress.gov API - the federal legislative process: bills as they move through committees and floor votes.
- GovInfo API - enacted law text as published packages: US Code, Statutes at Large, CFR annual editions, Federal Register issues.
- Federal Register API - full-text search over 1,003,504 FR documents (1994-2026, live-verified 2026-07-07), including 8,513 presidential documents (1,550 executive orders). Keyless.
- CourtListener search API - full-text search over 8,294,123 court opinions (live-verified 2026-07-07). The headline value is STATE case law (California, New York, Texas, ...), which no federal source covers. Keyless, ~5 requests/min anonymous.
- eCFR API - the CURRENT Code of Federal Regulations: section-level full-text search over 412,846 sections plus per-section amendment history. Keyless.
What this is not
- State legislation (all 50 states) - see LegiScan, a free-tier aggregator (30,000 queries/month) not wrapped here.
- A federal case-law workhorse - for heavy federal case-law research the mature MIT-licensed wrappers (blakeox/courtlistener-mcp, john-walkoe/courtlistener_citations_mcp) remain the recommendation; the case-law tools here exist primarily for state courts. See SOURCES.md.
Tools
| Tool | Purpose |
|---|---|
us_search_bills | List bills by congress (e.g. 118) and type (hr, s, hres, ...) |
us_get_bill | Full detail + latest action for one bill |
us_list_code_packages | List GovInfo packages in a collection (USCODE, CFR, FR, STATUTE) |
us_get_code_package | Metadata + download links (PDF/XML/TXT) for one package |
us_search_federal_register | Full-text search over FR documents; filter rules, notices, executive orders |
us_get_federal_register_doc | One FR document with its official citation (e.g. 91 FR 41591) |
us_search_case_law | Full-text search over 8M+ opinions; court filter (e.g. cal, ny, scotus) |
us_get_case | One opinion cluster by cluster_id |
us_search_cfr_sections | Full-text search over the current CFR (eCFR) |
us_get_cfr_section_history | Amendment history of one CFR section (e.g. 15 CFR 744.3) |
us_coverage | Declare what this connector covers, when each family was captured, and - explicitly - what it does NOT cover. Every gap carries a fallback. |
Every response carries lex_uri (a resolvable API URL), human_readable_citation
(the official convention: "H.R. 1, 118th Congress", "91 FR 41591",
"People v. Miranda-Guerrero, 519 P.3d 1004 (California Supreme Court 2022)",
"15 CFR § 744.3") and source_url (the public page). Reporter citations are
taken verbatim from the source and never fabricated; when none exists the
docket number is used instead.
Install
Windows 11 with Smart App Control
Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe
and the us-eli-mcp.exe launcher that pip writes at install time. The python.exe and
py.exe from the python.org installer are signed by the Python Software
Foundation, so running the module through the interpreter works:
pip.exe is blocked for the same reason, so install with python -m pip, not
pip install. If python is not on PATH, use the Windows launcher: py -3 -m us_eli_mcp.
Do not turn Smart App Control off to work around this - it cannot be re-enabled without reinstalling Windows.
Configuration
| Env var | Default |
|---|---|
US_ELI_API_KEY | DEMO_KEY (shared, low rate limit - get your own free key at api.congress.gov/sign-up) |
US_ELI_GOVINFO_API_KEY | reuses US_ELI_API_KEY (same api.data.gov key family) |
US_ELI_CACHE_DIR | ~/.matematic/cache/us-eli |
US_ELI_AUDIT_DIR | ~/.matematic/audit |
US_ELI_BASE_URL | https://api.congress.gov/v3 |
US_ELI_GOVINFO_BASE_URL | https://api.govinfo.gov |
US_ELI_FR_BASE_URL | https://www.federalregister.gov/api/v1 (keyless) |
US_ELI_COURTLISTENER_BASE_URL | https://www.courtlistener.com/api/rest/v4 (keyless) |
US_ELI_ECFR_BASE_URL | https://www.ecfr.gov/api (keyless) |
The Federal Register, CourtListener and eCFR tools need no key at all.
License
Apache-2.0 (code). Congress.gov, GovInfo, Federal Register and eCFR data are US government works (public domain). CourtListener data is provided by the Free Law Project.
Related MCP Servers
Reviews
No reviews yet — be the first to share how this listing worked for you.
Frequently Asked Questions about Us Eli MCP
AllMCPs Directory Badge
Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.
Badge Style:
Live Dynamic SVG Preview
Markdown (GitHub README)
[](https://allmcps.com/mcp/us-eli-mcp)HTML Embed
<a href="https://allmcps.com/mcp/us-eli-mcp"><img src="https://allmcps.com/api/badge/us-eli-mcp?style=directory" alt="Us Eli MCP on AllMCPs" /></a>Technical Specs & Signals
CategoryLegal
36Quality signal: Fair · 36/100How this signal is calculated ▾
Server availabilityNot measured
Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.
Verified ownership10/20
Documentation & tools16/30
Adoption & activity1/15
Community engagement0/10
A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.
Own this project?
This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to unlock edit access and the Official badge — proof is checked automatically, then reviewed by our team.
Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.
Claim & get free dofollowShare & Embed
Add our SVG badge (dark/light directory styles) or embeddable widget to your site.