Constellation MCP Server

Codebase Understanding for AI Coding Agents

Local serverstdio

What is the Constellation MCP Server?

Codebase Understanding for AI Coding Agents

What you get

Give your AI coding assistant instant, intelligent access to your entire codebase's structure, dependencies, and relationships without transmitting any source code. Constellation provides code intelligence as a service to AI coding assistant tools.

What the assistant can call

Once Constellation MCP is connected, these are the calls the assistant has available:

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Configuration and credentials

You will need one environment variable: CONSTELLATION_ACCESS_KEY. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

How to install the Constellation MCP Server

{
  "mcpServers": {
    "constellation": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@constellationdev/mcp@latest"
      ],
      "env": {
        "CONSTELLATION_ACCESS_KEY": "YOUR_CONSTELLATION_ACCESS_KEY"
      }
    }
  }
}

From the project documentation. Replace placeholders and example paths before connecting.

Configuration

VariableDescriptionRequired
CONSTELLATION_ACCESS_KEYDeclared in the maintainer’s client configuration.Check documentation

Example prompts to try

  • “Use Constellation MCP to Documentation.”

Frequently asked questions

Codebase Understanding for AI Coding Agents Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.