Claude Code Bridge vs Relay

In-depth architectural comparison of the Claude Code Bridge and Relay 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.

Which MCP Server Should You Choose?

Choose Claude Code Bridge when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Claude Code Bridge Details

Choose Relay when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Relay Details

Feature & Specification Comparison

Specification	Claude Code Bridge Developer Tools	Relay Developer Tools
Summary	MCP relay so Claude Code agents on different machines can exchange messages via named channels.	MCP relay server for Claude Desktop <-> Claude Code communication
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "claude-code-bridge": {
      "command": "uvx",
      "args": [
        "claude-code-bridge"
      ]
    }
  }
}

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

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