What MCP Is in Space Market Empire

What It Is and Why

MCP is the way an AI client gets access to the game tools. It is not itself a language model and does not store the game universe. The server works with a single database, and the AI client requests state, proposes plans, and passes along permitted actions. The difference between chat history and game state is fundamental: deleting a chat changes nothing in the world.

How It Works

The space-market-empire server exposes more than fifty tools. The player is identified by a token; the model does not pass a player identifier.

• Read: for example, get_executive_briefing, get_management_review, get_market_summary, get_order_book, search_markets, scan_resources, get_galaxy_chart, search_commercial_requests, get_galaxy_news, list_survey_targets.
• Write: for example, place_buy_order, place_sell_order, dispatch_ship, start_mining, start_refining, start_manufacturing, approve_trade_delegation, propose_contract, start_survey.

Writes work in two steps. Without confirm, the server returns a preliminary calculation and rolls back the transaction. With confirm: true, an idempotency_key is also required: a repeat with the same key will not perform the action a second time.

The server returns data and an instruction to the deputy. The deputy builds tables and diagrams only from the fields in the response. It must not invent numbers. The server's short summary is written in English, and the deputy translates it into the player's language. Conversations with the deputy are not stored in the database.

Limits and Risks

• The server listens on a local address with a token. There is no OAuth or public HTTPS yet, so the ChatGPT website cannot connect to it.
• Connecting ChatGPT and Claude to a public server is untested.
• Voice tool calls on the game server side are marked as untested.
• The text of announcements and profiles is untrusted data. A good client does not follow instructions found in it.

What's Next

See ways to play, confirmations, and voice.