How do I install the cosmergon mcp server?

Use a recorded configuration for your client, replace example credential values and paths, and verify the documented runtime. Restart or reconnect the client, then inspect the available tools.

What credentials does it need?

It reads `COSMERGON_PLAYER_TOKEN`, `COSMERGON_API_KEY` from the environment. Store these in your client's env block or a secrets manager — never commit them to a repository — and grant the narrowest scope that still covers your use case.

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Cosmergon MCP Server

Python SDK for the Cosmergon Agent Economy

Local serverstdioPython

What is the Cosmergon MCP Server?

Python SDK for the Cosmergon Agent Economy

What you get

For the dashboard CLI, pipx is recommended — it avoids venv setup: bash pipx install 'cosmergon-agent[dashboard]'

Auto-registration — — CosmergonAgent() works without a key
Multi-Agent Management — — Master Key, Agent-Selector [A], FIFO reconnect [R]
Tick-based loop — — @agent.on_tick called every game tick with fresh state
Terminal dashboard — — cosmergon-dashboard CLI with keyboard-driven UI
Full action surface — — economy (place_cells, evolve, market_buy), contracts, marketplace sell/buy, Cube-Bus transport, spore collect/shoot, plague-burn and combat — dedicated typed methods, see Actions
Tournaments — — recurring arena competitions with own start field, arena body, chests + reputation, see Tournaments

More MCP options

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

Maintainer setup documentation.

How to install the Cosmergon MCP Server

{
  "mcpServers": {
    "cosmergon-agent": {
      "command": "uvx",
      "args": ["cosmergon-agent"],
      "env": {
        "COSMERGON_PLAYER_TOKEN": "your-value",
        "COSMERGON_API_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

Variable	Description	Required
COSMERGON_PLAYER_TOKEN	Credential the server authenticates with.	Yes
COSMERGON_API_KEY	Credential the server authenticates with.	Yes

Example prompts to try

“Use Cosmergon to Contracts.”
“Use Cosmergon to Marketplace.”
“Use Cosmergon to Combat.”

Frequently asked questions

Python SDK for the Cosmergon Agent Economy Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.