SERVER

eCFR

Rank #7,130

com.1102tools/ecfr-mcp

Electronic Code of Federal Regulations including FAR, DFARS, and agency supplements. 13 tools.

20 versions

25 GitHub stars

by 1102tools-dev (11 servers)View repository ↗

First listed

Aug 23, 2026

Last publish date

Oct 21, 2026

PURPOSE

What you can do with eCFR

eCFR is a Model Context Protocol (MCP) server published by 1102tools-dev. It ranks #7,130 of 150,963 active servers on MCP Toplist, and its repository has 25 GitHub stars. eCFR is listed on Official MCP, with 20 tracked versions. It was first listed on Aug 23, 2026 and most recently updated on Oct 21, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What eCFR can and cannot do

MCP Toplist connected to the public endpoint on Oct 22, 2026 and it listed 13 tools. Tool names are not stored, so what they do is not catalogued here.

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using eCFR

VerifiedNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Verified by MCP Toplist on Oct 22, 2026: the public endpoint completed the MCP handshake and listed 13 tools without credentials.

Declared by the Official MCP Registry, last synced Oct 22, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect eCFR and confirm it works

Remote · HTTP

claude mcp add --transport http ecfr-mcp https://ecfr.1102tools.com/mcp

Python package (PyPI)

claude mcp add ecfr-mcp -- uvx ecfr-mcp

Remote · HTTP

[mcp_servers.ecfr-mcp]
url = "https://ecfr.1102tools.com/mcp"

Add to ~/.codex/config.toml.

Python package (PyPI)

[mcp_servers.ecfr-mcp]
command = "uvx"
args = ["ecfr-mcp"]

Add to ~/.codex/config.toml.

Remote · HTTP

https://ecfr.1102tools.com/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

Python package (PyPI)

{
  "mcpServers": {
    "ecfr-mcp": {
      "command": "uvx",
      "args": [
        "ecfr-mcp"
      ]
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config).

Remote · HTTP

{
  "mcpServers": {
    "ecfr-mcp": {
      "url": "https://ecfr.1102tools.com/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Python package (PyPI)

{
  "mcpServers": {
    "ecfr-mcp": {
      "command": "uvx",
      "args": [
        "ecfr-mcp"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Remote · HTTP

{
  "servers": {
    "ecfr-mcp": {
      "type": "http",
      "url": "https://ecfr.1102tools.com/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

Python package (PyPI)

{
  "servers": {
    "ecfr-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "ecfr-mcp"
      ]
    }
  }
}

Save as .vscode/mcp.json in your workspace.

Remote · HTTP

{
  "mcpServers": {
    "ecfr-mcp": {
      "serverUrl": "https://ecfr.1102tools.com/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Python package (PyPI)

{
  "mcpServers": {
    "ecfr-mcp": {
      "command": "uvx",
      "args": [
        "ecfr-mcp"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Remote · HTTP

{
  "mcpServers": {
    "ecfr-mcp": {
      "url": "https://ecfr.1102tools.com/mcp"
    }
  }
}

Python package (PyPI)

{
  "mcpServers": {
    "ecfr-mcp": {
      "command": "uvx",
      "args": [
        "ecfr-mcp"
      ]
    }
  }
}

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Aug 23, 2026
Latest version published: Oct 21, 2026
Version history: 20 versions tracked (below)
Requirements evidence: Verified by MCP Toplist on Oct 22, 2026: the public endpoint completed the MCP handshake and listed 13 tools without credentials.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 21, 2026

Registry sightings

Official MCP ↗listed since Aug 24, 2026 · still listed

Do you maintain eCFR? to correct or enrich this profile.

VERSIONS

Available versions (20)

Version	Published
1.1.12	Oct 21, 2026
1.1.11	Oct 17, 2026
1.1.10	Oct 12, 2026
1.1.9	Oct 11, 2026
1.1.8	Oct 10, 2026
1.1.7	Oct 10, 2026
1.1.6	Oct 10, 2026
1.1.5	Oct 10, 2026
1.1.4	Oct 10, 2026
1.1.2	Oct 10, 2026
1.1.1	Oct 10, 2026
1.1.0	Oct 10, 2026
1.0.13	Oct 10, 2026
1.0.12	Oct 10, 2026
1.0.11	Oct 9, 2026
1.0.10	Sep 13, 2026
1.0.9	Sep 13, 2026
1.0.8	Sep 13, 2026
1.0.7	Sep 13, 2026
1.0.6	Aug 24, 2026

STANDING

#7,130of 150,963 active serversTop 5%

Ranks ahead of 143,833 of 150,963 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/com.1102tools%2Fecfr-mcp.svg)](https://mcptoplist.com/server/com.1102tools%2Fecfr-mcp)

HTML

<a href="https://mcptoplist.com/server/com.1102tools%2Fecfr-mcp"><img src="https://mcptoplist.com/badge/com.1102tools%2Fecfr-mcp.svg" alt="MCP Toplist: Top 5% of 150,963" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains eCFR?: eCFR is maintained by 1102tools-dev, which publishes 11 MCP servers (135 total versions) tracked on MCP Toplist.
Is eCFR listed on the Official MCP Registry?: Yes — eCFR is listed on the Official MCP Registry.
How many versions does eCFR have?: MCP Toplist tracks 20 versions of eCFR, most recently published on Oct 21, 2026.
Where can I find the source code for eCFR?: The source code for eCFR is hosted at github.com/1102tools-dev/federal-contracting-mcps.

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