Beautiful diff visualization for Claude Desktop - Remote MCP Server
Unified Diff MCP becomes available to MCP clients through the unified diff mcp mcp server. Beautiful diff visualization for Claude Desktop - Remote MCP Server.
Beautiful diff visualization for Claude Desktop. Transform code diffs into stunning visual comparisons with GitHub Gist integration and local file output.
Once connected, the assistant can call these 2 tools directly:
apiKey — 'old-key'Dependencies — The Dependencies tool exposed by this serverSetup follows the standard MCP pattern: clone or install the server, then register it in your client's configuration file and restart the client. The configuration snippets on this page cover Claude Desktop, Claude Code and Cursor.
Before the server will start you need to supply 3 environment variables: GITHUB_TOKEN, DEFAULT_AUTO_OPEN, DEFAULT_OUTPUT_MODE. Keep credentials in your client's env block or a secrets manager rather than committing them.
Developer-tool servers are usually the first ones people connect, because they turn "help me with this code" into an assistant that can actually read the repo and act on it. Unified Diff MCP sits in that group, and the shape of its toolset — apiKey, Dependencies — tells you what it is really for. Worth comparing against the other developer tools servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.
| Tool | What it does |
|---|---|
| apiKey | 'old-key' |
| Dependencies | The Dependencies tool exposed by this server. |
{
"mcpServers": {
"unified-diff-mcp": {
"command": "bun",
"args": ["run", "/path/to/unified-diff-mcp/src/index.ts"],
"env": {
"GITHUB_TOKEN": "your_github_token_here",
"DEFAULT_AUTO_OPEN": "true",
"DEFAULT_OUTPUT_MODE": "html"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| GITHUB_TOKEN | Credential the server authenticates with. | Yes |
| DEFAULT_AUTO_OPEN | Configuration value read at startup. | Optional |
| DEFAULT_OUTPUT_MODE | Configuration value read at startup. | Optional |
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