What is the key difference between Lawstronaut and Heddle?

Lawstronaut belongs to the Legal category with cloud HTTP/SSE execution, while Heddle belongs to the Legal category with local stdio execution.

How do I install Lawstronaut or Heddle 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 Lawstronaut and Heddle free or paid?

Lawstronaut operates under a Free / Open Source model (No auth required). Heddle operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Lawstronaut lists 62 tools with 0 views and 2 GitHub stars. Heddle lists 5 tools with 0 views and 2 GitHub stars.

Can I use both Lawstronaut and Heddle 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

Lawstronaut vs Heddle

In-depth architectural comparison of the Lawstronaut and Heddle 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

Lawstronaut

Legal · Remote HTTP/SSE

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

Heddle

Legal · Local stdio

Quality: 53/100 (Good) | Auth: No auth required

Verdict Summary: Choose Lawstronaut if you need specialized Legal tools running via a hosted cloud SSE transport. Choose Heddle 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 Lawstronaut when:

You need dedicated capabilities in the Legal domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: list_jurisdictions, list_domains, domain.

Explore Lawstronaut Details

Choose Heddle 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: get_contract, put_contract, get_dependents.

Explore Heddle Details

Feature & Specification Comparison

Specification	Lawstronaut Legal	Heddle Legal
Summary	Connect AI to millions of laws and court cases with the Lawstronaut MCP.	Content-addressed contracts and a verification cache that cut agent context by skipping proven code.
Category & Scope	Legal	Legal
Quality signal

Tools & Capabilities Breakdown

Lawstronaut Tools (62)

list_jurisdictions

List all jurisdictions (countries/states) in the Lawstronaut corpus — call first to get valid ISO codes for other tools

list_domains

List legal domains with optional name filter and pagination

domain

Filter domains by name (string, optional)

limit

Number of results to return (number, optional)

offset

Number of results to skip (number, optional)

list_subdomains

List subdomains for a domain ID — filter by name, paginate results

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).

Lawstronaut Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "lawstronaut-2": {
      "url": "https://mcp.lawstronaut.com"
    }
  }
}

Heddle Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "heddle": {
      "command": "uvx",
      "args": [
        "hashloom"
      ]
    }
  }
}

Frequently Asked Questions

Lawstronaut is categorized under Legal and uses a remote streaming HTTP/SSE transport. In contrast, Heddle belongs to Legal using local stdio subprocess. Select Lawstronaut when you need capabilities focused on legal and Heddle when you require tools for legal.