What is the key difference between Ecfr and Japan Law?

Ecfr belongs to the Legal category with local stdio execution, while Japan Law belongs to the Legal category with local stdio execution.

How do I install Ecfr or Japan Law in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Ecfr and Japan Law free or paid?

Ecfr operates under a Free / Open Source model (No auth required). Japan Law operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Ecfr lists 4 tools with 0 views and 0 GitHub stars. Japan Law lists 2 tools with 0 views and 0 GitHub stars.

Can I use both Ecfr and Japan Law together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Ecfr vs Japan Law

In-depth architectural comparison of the Ecfr and Japan Law MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Ecfr

Legal · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Japan Law

Legal · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Verdict Summary: Choose Ecfr if you need specialized Legal tools running via a local process. Choose Japan Law if your workspace requires Legal integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Ecfr when:

You need dedicated capabilities in the Legal domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: search_regulations, list_titles, title_structure.

Explore Ecfr Details

Choose Japan Law when:

You need dedicated capabilities in the Legal domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: search_laws, get_law.

Explore Japan Law Details

Feature & Specification Comparison

Specification	Ecfr Legal	Japan Law Legal
Summary	eCFR (Electronic Code of Federal Regulations) MCP.	Japan Law MCP — Japanese national laws & ordinances via the e-Gov Law API.
Category & Scope	Legal	Legal
Quality signal

Tools & Capabilities Breakdown

Ecfr Tools (4)

search_regulations

Full-text search across all 50 titles of the US Code of Federal Regulations (federal agency regulations) via the official eCFR API. Returns matching sections with citation, heading, and excerpt. e.g. "drone operation", "food labeling", "overtime pay". Optionally restrict to one CFR title number. Ke…

list_titles

List all 50 titles of the US Code of Federal Regulations (Title 1 General Provisions … Title 50 Wildlife and Fisheries), with currency dates. This is the index for the `title` filter in search_regulations. Keyless.

title_structure

Get the top-level structure (chapters/subtitles) of one CFR title — the agencies and major divisions within that title. Returns a summarized one-level view, not the full deep tree. Keyless.

get_section_text

Get the actual REGULATION TEXT currently in force — a single CFR section OR a whole CFR part. PREFER for "what does 14 CFR 91.113 say", "read the text of <citation>", "the exact wording of <regulation>", "text of 22 CFR part 120", "40 CFR part 261". Pass the title number plus EITHER a section (e.g.…

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Ecfr Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "ecfr": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-ecfr"
      ]
    }
  }
}

Japan Law Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "japan-law": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-japan-law"
      ]
    }
  }
}

Frequently Asked Questions

Ecfr is categorized under Legal and uses a local stdio subprocess. In contrast, Japan Law belongs to Legal using local stdio subprocess. Select Ecfr when you need capabilities focused on legal and Japan Law when you require tools for legal.