What is the main functional difference between ECFR.io Federal Regulations and Hudoc?

ECFR.io Federal Regulations is categorized under Legal and uses a remote HTTP/SSE transport. Hudoc belongs to Legal and uses a local stdio subprocess. Pick ECFR.io Federal Regulations for legal work and Hudoc for legal.

How do I install ECFR.io Federal Regulations or Hudoc in Claude Desktop, Cursor, or Windsurf?

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Are ECFR.io Federal Regulations and Hudoc free to use, or do they require API keys?

ECFR.io Federal Regulations has no declared pricing — check the project's own site. Hudoc has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Can I run both ECFR.io Federal Regulations and Hudoc at the same time in my AI client?

Yes. MCP clients support multiple servers: add ecfr-io-federal-regulations and hudoc as separate keys in the same mcpServers object, and your assistant will call tools from either one.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, ECFR.io Federal Regulations has a quality signal of 36/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Hudoc has 43/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.

ECFR.io Federal Regul… vs Hudoc — MCP Server Comparison

ECFR.io Federal Regul… vs Hudoc — MCP Server Comparison | AllMCPs

Feature & specification comparison

Rows where the two servers differ are marked.

Spec	ECFR.io Federal Regulations	Hudoc
Category	Legal	Legal
Quality signal	36/100 · Fair	43/100 · Fair
Install command	Confirmed	Confirmed
Transport	Remote HTTP/SSE	Local subprocess (stdio)
Auth	Not declared	Not declared
Pricing	Not declared	Not declared
Required env vars	None listed	None listed
Verified owner	Community listing	Community listing
GitHub stars	0	0
Directory activity	0 views 0 installs 0 upvotes	1 views 0 installs 0 upvotes
Tools	Not listed	Not listed
Full listing	View ECFR.io Federal Regulations	View Hudoc

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

ECFR.io Federal Regulations

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "ecfr-io-federal-regulations": {
      "url": "https://ecfr.io/mcp"
    }
  }
}

Hudoc

mcpServers (Claude Desktop / Cursor)

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

ECFR.io Federal Regulations vs Hudoc

Which MCP server should you choose?

Choose ECFR.io Federal Regulations when

Choose Hudoc when

Feature & specification comparison

Tools & capabilities

ECFR.io Federal Regulations tools

Hudoc tools

Ready-to-paste client configs

ECFR.io Federal Regulations

Hudoc

Frequently asked questions

Choose ECFR.io Federal Regulations when

Choose Hudoc when

ECFR.io Federal Regulations tools

Hudoc tools

ECFR.io Federal Regulations

Hudoc

Frequently asked questions

What is the main functional difference between ECFR.io Federal Regulations and Hudoc?

How do I install ECFR.io Federal Regulations or Hudoc in Claude Desktop, Cursor, or Windsurf?

Are ECFR.io Federal Regulations and Hudoc free to use, or do they require API keys?

Can I run both ECFR.io Federal Regulations and Hudoc at the same time in my AI client?

Which MCP server has higher directory engagement and quality ratings?

Popular comparisons with ECFR.io Federal Regulations

Popular comparisons with Hudoc