Open-source B2B and marketplace ecommerce; new stores include an MCP server for AI agents.
Us Eli MCP
Overview
Description from the maker (original English)
US law MCP: bills, US Code, Federal Register, executive orders, case law (state+federal), eCFR
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Online shops & payments
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- PyPIPython’s uv installed (for the uvx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"us-eli": {
"command": "uvx",
"args": [
"us-eli-mcp"
]
}
}
}Run this in your terminal
claude mcp add us-eli -- uvx us-eli-mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"us-eli": {
"command": "uvx",
"args": [
"us-eli-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"us-eli": {
"type": "stdio",
"command": "uvx",
"args": [
"us-eli-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account matematicsolutions, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Online shops & paymentsi
- More stars than 0% of the other 1753 servers in this category
- Published to the registry more recently than 31% of the other 1753 servers in this category
- Basic checks equal to or better than 100% of the other 1753 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Us Eli MCP safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.5.3) reached the registry 2 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: Spree Commerce: open-source B2B and marketplace ecommerce, Stripe MCP, MCP Cn Commerce
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Stripe MCP
Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.
MCP Cn Commerce
8 read-only MCP platform entries; support is operation-specific; merchant live acceptance pending
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
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
As a Claude plugin (Claude Code or the desktop app, needs uv); see plugin/README.md for what it sends and stores:
/plugin marketplace add matematicsolutions/us-eli-mcp
/plugin install us-eli-mcp@us-eli-mcp
As a standalone server:
pip install us-eli-mcp
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:
python -m pip install us-eli-mcp
python -m us_eli_mcp
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.
{ "mcpServers": { "us-eli-mcp": { "command": "python", "args": ["-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.
Network: the server talks to the five sources above and the local filesystem. Once, on first use, it also fetches a small configuration file (us-runtime.json.gz, updated source addresses) from this repository's GitHub Releases. That request carries no query content; GitHub's download counter for the file is the only usage signal we see. US_ELI_RUNTIME_URL="" turns it off; the Claude plugin ships with it off. No LLM provider, no other telemetry.
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.