The eCFR MCP server,
connected in one click.
Electronic Code of Federal Regulations including FAR, DFARS, and agency supplements. 13 tools. Connect the official eCFR MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add eCFR to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http ecfr https://ecfr.1102tools.com/mcpRun in your terminal, then restart Claude Code.
eCFR · https://ecfr.1102tools.com/mcp
What your AI can do with eCFR
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_latest_date”: Get the most recent available date for a CFR title. CRITICAL: eCFR lags 1-2 business days behind the Federal Register. Using today'.”
“Use “get_cfr_content”: Get the full text of a CFR section, subpart, part, or appendix. This is the primary workhorse for reading regulatory text. Returns.”
“Use “get_cfr_structure”: Get the hierarchical table of contents for a CFR title or subset. Returns a nested tree of titles, chapters, parts, subparts, and secti.”
“Use “get_version_history”: Get the version history of a CFR section, subpart, or part. Returns content_versions (each with date, amendment_date, issue_date, i.”
How secure is the eCFR MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how eCFR holds up.
Official endpoint
Operated by eCFR (1102tools.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If eCFR adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick eCFR
Choose eCFR in the gate directory. No sign-in needed.
Use it anywhere
eCFR's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools eCFR exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_latest_date — Get the most recent available date for a CFR title. CRITICAL: eCFR lags 1-2 business days behind the Federal Register. Using today'
get_cfr_content — Get the full text of a CFR section, subpart, part, or appendix. This is the primary workhorse for reading regulatory text. Returns
get_cfr_structure — Get the hierarchical table of contents for a CFR title or subset. Returns a nested tree of titles, chapters, parts, subparts, and secti
get_version_history — Get the version history of a CFR section, subpart, or part. Returns content_versions (each with date, amendment_date, issue_date, i
get_ancestry — Get the breadcrumb hierarchy path for a section, part, or appendix. Returns ancestors from title down to the target node: title > chapt
search_cfr — Full-text search across the Code of Federal Regulations. Returns matching sections with excerpts, headings, scores, and hierarchy.
list_agencies — List all agencies with their CFR title and chapter references. Returns agency names, slugs, and which CFR titles/chapters they own.
get_corrections — Get editorial corrections for a CFR title, newest first. Returns corrections with CFR references, corrective actions, error dates,
+ 5 more tools once connected
Who runs the eCFR MCP server?
The eCFR MCP server at a glance
https://ecfr.1102tools.com/mcpQuestions, answered
Is there an official eCFR MCP server?
Yes — eCFR operates its own remote MCP server at ecfr.1102tools.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect eCFR to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick eCFR in the directory. No account or sign-in is needed. From then on, eCFR's tools are available in every client you've connected to gate.
Do I need to host anything?
No. eCFR runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the eCFR MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect eCFR in minutes. No credit card required.
Connect more than just eCFR
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up eCFR in: Claude · Claude Code · ChatGPT · Cursor · VS Code