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AllSource Prime with VS Code

VS Code's built-in MCP support (Copilot agent mode) loads stdio servers from a workspace .vscode/mcp.json.

Prime runs as a local allsource-prime binary over stdio in VS Code. The same store serves every MCP client you wire it into — one source of truth, everywhere your agents work.

1. Install the binary

From crates.io. Builds standalone — no AllSource server required, just a Rust toolchain.

cargo install allsource-prime

2. Hosted memory (recommended)

Mint an API key, then run Prime with --sync-to. Your memory persists to your AllSource tenant and shows up live in the dashboard — and the same key works from any other client you connect.

Mint your API key

One click mints a Prime-scoped key. We don't show secrets twice — paste it into the config below.

Get API key

Then paste this, swapping <YOUR_API_KEY> for the key you just minted:

Paste into: .vscode/mcp.json
{
  "servers": {
    "prime": {
      "type": "stdio",
      "command": "allsource-prime",
      "args": [
        "--data-dir",
        "~/.prime/memory",
        "--auto-inject",
        "--sync-to",
        "https://api.all-source.xyz",
        "--api-key",
        "<YOUR_API_KEY>"
      ]
    }
  }
}

3. Local-only alternative (no account)

Skip the account entirely. Drop the --sync-to / --api-key flags and memory stays on disk at ~/.prime/memory. Nothing leaves your machine.

Paste into: .vscode/mcp.json
{
  "servers": {
    "prime": {
      "type": "stdio",
      "command": "allsource-prime",
      "args": [
        "--data-dir",
        "~/.prime/memory",
        "--auto-inject"
      ]
    }
  }
}

Notes

  • VS Code uses a top-level `servers` key (with `type: "stdio"`), NOT the `mcpServers` key the desktop clients use.
  • Requires GitHub Copilot with MCP/agent mode enabled. After saving, click Start on the server in the .vscode/mcp.json gutter.

After install

  • Restart VS Code so it picks up the new MCP server.
  • Verify by asking it: "List the MCP tools you have available." You should see prime_add_node, prime_recall, and friends.
  • On the hosted path, watch nodes appear live at /dashboard/memory.
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