A zero-dependency MCP gateway. Connect multiple AI agents to multiple MCP servers through a single, centrally-managed stdio interface. No overhead
Mcphub MCP server exists for a simple reason — assistants are far more useful when they can act on Mcphub directly instead of describing what you should do. A zero-dependency MCP gateway. Connect multiple AI agents to multiple MCP servers through a single, centrally-managed stdio interface. No overhead, no bloat — just the Node.js stdlib. Secrets stay in the OS keychain, never in config files.
Being a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
Once Mcphub is connected, these are the calls the assistant has available:
Keychain — The Keychain tool exposed by this serverstdio — Spawns a subprocess and communicates via JSON-RPC 2.0 over stdin/stdout. Stderr from the child is logged with the server name as prefix. Process exitYou will need one environment variable: GITHUB_PERSONAL_ACCESS_TOKEN. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Mcphub's toolset — Keychain, stdio — is a fair guide to whether it matches your workflow. It is maintained by pcandido; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| Keychain | The Keychain tool exposed by this server. |
| stdio | Spawns a subprocess and communicates via JSON-RPC 2.0 over stdin/stdout. Stderr from the child is logged with the server name as prefix. Process exit kills pending requests and cleans up. |
{
"mcpServers": {
"mcphub": {
"type": "stdio",
"command": "npx",
"args": ["-y", "@pcandido/mcphub", "serve"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| GITHUB_PERSONAL_ACCESS_TOKEN | Credential the server authenticates with. | Yes |
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