An MCP proxy hub that aggregates and serves multiple MCP resource servers through a single interface
MCP Proxy Hub becomes available to MCP clients through the mcp proxy hub mcp server. An MCP proxy hub that aggregates and serves multiple MCP resource servers through a single interface.
An MCP proxy server that aggregates and serves multiple MCP resource servers through a single interface. This server acts as a central hub that can:
Once connected, the assistant can call these 14 tools directly:
Server — specific variables take precedence over global variables with the same nameStdio — type Server**:command — Command to execute (required)args — Command line arguments (optional)env — Environment variables (optional)exposedTools — Array of tools to expose (optional)hiddenTools — Array of tools to hide (optional)envVars — Environment variable configuration for tool arguments and responses (optional)timeout — Request timeout in seconds for downstream tool calls (optional, overrides the top-level timeout; 0 disables the timeout)enable — Whether to enable the server (optional, default: true)SSE — type Server**:type — "sse" (required)url — URL of the SSE server (required)headers — Object of HTTP headers to send with the SSE connection (optional)Setup 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 7 environment variables: MCP_PROXY_CONFIG_PATH, KEEP_SERVER_OPEN, USER_ID, GLOBAL_API_KEY, MCP_PROXY_AUTH_TOKEN, MCP_PROXY_LOG_DIRECTORY_PATH, MCP_PROXY_PATH. 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. MCP Proxy Hub sits in that group, and the shape of its toolset — Server, Stdio, command among others — 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 |
|---|---|
| Server | specific variables take precedence over global variables with the same name |
| Stdio | type Server**: |
| command | Command to execute (required) |
| args | Command line arguments (optional) |
| env | Environment variables (optional) |
| exposedTools | Array of tools to expose (optional) |
| hiddenTools | Array of tools to hide (optional) |
| envVars | Environment variable configuration for tool arguments and responses (optional) |
| timeout | Request timeout in seconds for downstream tool calls (optional, overrides the top-level timeout; 0 disables the timeout) |
| enable | Whether to enable the server (optional, default: true) |
| SSE | type Server**: |
| type | "sse" (required) |
| url | URL of the SSE server (required) |
| headers | Object of HTTP headers to send with the SSE connection (optional) |
{
"timeout": 30,
"mcpServers": {
"slow-server": { "command": "...", "timeout": 0 },
"fast-server": { "command": "...", "timeout": 5 }
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| MCP_PROXY_CONFIG_PATH | Filesystem location the server is allowed to use. | Optional |
| KEEP_SERVER_OPEN | Configuration value read at startup. | Optional |
| USER_ID | Configuration value read at startup. | Optional |
| GLOBAL_API_KEY | Credential the server authenticates with. | Yes |
| MCP_PROXY_AUTH_TOKEN | Credential the server authenticates with. | Yes |
| MCP_PROXY_LOG_DIRECTORY_PATH | Filesystem location the server is allowed to use. | Optional |
| MCP_PROXY_PATH | Filesystem location the server is allowed to use. | Optional |
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