Get started — Maskin

Prerequisites

Claude Code or Claude Desktop installed.
An Anthropic API key. Maskin runs Claude Code in sandboxes on your behalf and uses this key to authenticate those runs.

You don't need to clone anything, install dependencies, or run a local server. Maskin is hosted at maskin.sindre.ai.

Automated setup (Claude runs it)

Click Open in Claude at the top of this page. The pre-filled prompt tells Claude to drive Steps 4–5 based on where it's running. You still do Steps 1–3 in the Maskin UI yourself (sign in, paste Anthropic key, copy your Maskin API key + workspace ID) — those require browser auth.

What Claude does next depends on its environment:

Claude Code (terminal) or Claude Desktop with shell access: Claude runs claude mcp add maskin … directly, runs /reload-plugins (or tells you to restart Desktop), then calls get_started and drives the template pick interactively.
claude.ai web (sandboxed): Claude can't touch your local shell, so it walks you through the UI flow: Customize → Connectors → Add Custom Connector, enter Name: Maskin and Remote MCP server URL: https://maskin.sindre.ai/mcp, plus auth headers Authorization: Bearer <KEY> and X-Workspace-Id: <ID>. Once wired, Claude calls get_started and drives the template pick.

Want the most direct path? Start Claude Code in your terminal and paste the prompt below — Claude Code has shell access so it executes every step itself:

Help me connect the hosted Maskin MCP. Ask me for my Maskin API key (ank_...) and workspace ID from maskin.sindre.ai Settings. Then run `claude mcp add maskin --transport http --url https://maskin.sindre.ai/mcp --header "Authorization: Bearer <KEY>" --header "X-Workspace-Id: <ID>"`, run `/reload-plugins`, and call the `get_started` MCP tool interactively.

Prefer to wire it by hand? Follow the numbered steps below — same result.

Step 1 — Sign in and create a workspace

Go to maskin.sindre.ai and sign in.
Create your first workspace from the prompt. A workspace is an isolated environment with its own objects, actors, and settings — you can create more later.

Once you're in, you'll see the unified pipeline view: Insights → Bets → Tasks. All work — yours and your agents' — lives as objects in this pipeline.

Step 2 — Paste your Anthropic API key

Maskin needs your Anthropic API key to run agent sessions in its sandboxes. Keys are stored encrypted and scoped to the workspace.

Open Settings → Integrations (or Settings → LLM keys) from the workspace sidebar.
Paste your Anthropic API key and Save. Maskin validates the key with a cheap call to Anthropic before storing it.
You can update or remove the key from the same screen at any time. After save, only the last four characters are shown.

Step 3 — Get your Maskin API key and workspace ID

To let Claude talk to your workspace, you need two values from the UI:

Open Settings → API keys and click Create key. Copy the ank_… value that appears — this is your Maskin API key. You'll only see it once.
Open Settings → Workspace and copy the Workspace ID (UUID). This tells the MCP which workspace to act on.

Keep both values handy for the next step.

Step 4 — Connect Claude to the hosted Maskin MCP

Claude Code

From a terminal, run:

claude mcp add maskin \
  --transport http \
  --url https://maskin.sindre.ai/mcp \
  --header "Authorization: Bearer <YOUR_MASKIN_API_KEY>" \
  --header "X-Workspace-Id: <YOUR_WORKSPACE_ID>"

Replace <YOUR_MASKIN_API_KEY> with the ank_… key from Step 3 and <YOUR_WORKSPACE_ID> with the workspace UUID.

If Claude Code is already running, reload plugins so the new tools show up in the current session:

/reload-plugins

Claude Desktop

Open your Claude Desktop MCP config (Settings → Developer → Edit config) and add the maskin entry:

{
  "mcpServers": {
    "maskin": {
      "type": "http",
      "url": "https://maskin.sindre.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_MASKIN_API_KEY>",
        "X-Workspace-Id": "<YOUR_WORKSPACE_ID>"
      }
    }
  }
}

Save the file and restart Claude Desktop.

Step 5 — Make your first MCP call

Back in Claude Code or Claude Desktop, ask:

Use the maskin MCP to call get_started.

get_started is the entry-point tool. It previews and applies a workspace template — either development (for shipping a product), growth (for running a launch or outreach pipeline), or custom (a short questionnaire that tailors the workspace to whatever you're working on). Once you pick one, Claude seeds the workspace with object types, statuses, custom fields, and a first set of objects, and kicks off the pipeline.

If the tool returns a response without errors, you're connected. From here Claude can create and update insights, bets, and tasks, run triggers, and stream events directly against your hosted workspace.

What's next

Invite teammates. Workspaces support multiple members — add humans and agents from Settings → Members.
Wire up integrations. Connect Slack, GitHub, Google Calendar, and more from Settings → Integrations to let agents react to real-world events.
Explore the 39 MCP tools. get_started is just the start — list objects, create bets, fire triggers, and manage agent sessions all from Claude. Run list_tools to see the full set.

Stuck? Open an issue in sindre-ai/maskin or read the README for deeper background on the data model, agent sessions, and the event stream.

Get started with Maskin