add_liquidity
Add mana to market liquidity pool
LABSCO SUMMARY
Research and the money are in the same tool list, one call apart.
Search and market detail alone would make this a reading tool, but the same server places bets, cancels limit orders, sells shares, adds liquidity and moves mana between accounts. limitProb is what separates a market order from a resting one, so the difference lives in a parameter rather than in a separate tool. Nothing here creates or resolves a market: it trades on what already exists.
What it is
A trading client for Manifold Markets, covering market research, positions, bets and mana transfers from the same surface.
What you get
- Search markets by term with a filter, a sort order and a limit, then open one market for its detail.
- Place a bet with an amount on a chosen outcome, and set limitProb to make it a limit order instead.
- Cancel a resting limit order by its bet ID.
- Sell a stated number of shares in an outcome you hold.
- Add mana to a market's liquidity pool.
- Look up a user by username and read their positions across markets.
- Send mana to other users with a message attached.
Requirements
An account on Manifold Markets and its API key, set as MANIFOLD_API_KEY in the client config — place_bet, sell_shares, add_liquidity and send_mana all move a real balance.
Setup effort
One command plus a key — npm install manifold-mcp-server, then supply credentials
USE CASES
01
Sizing up a market before putting mana behind an opinion
Search on the topic, then open the market that matches to read its detail before committing anything.
02
Getting a limit order in and then taking it back out
Place the bet with a limit probability, and cancel it by bet ID when the market moves away from the thesis.
03
Closing out of a position you no longer believe in
Read what is held across markets, then sell the shares in the outcome that has stopped making sense.
04
Deepening a thin market you intend to trade in
Check the market's current state, then put mana into its liquidity pool so there is something to trade against.
05
Settling up with the person who called it right
Resolve the username to an account, then send the mana across with a note explaining it.
9 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
cancel_bet
Cancel a limit order bet
get_market
Get detailed information about a specific market
get_positions
Get user positions across markets
get_user
Get user information by username
place_bet
Place a bet on a market
search_markets
Search for prediction markets with optional filters
sell_shares
Sell shares in a market
send_mana
Send mana to other users
BEFORE YOU INSTALL
What to know first
Tools you get
9 tools when we connected; the project documents 18. The available tools cover reading and trading. create_market, close_market, unresolve_market, add_answer, follow_market, react, add_bounty, award_bounty and remove_liquidity are documented but missing from a default install, and several require a role such as market creator.
Requires
- Node.js 18 or later
- MANIFOLD_API_KEY in your environment
Where it runs
Both documented clients run the server on your machine.
INSTALLATION
Connect your client
Server setup
TERMINAL
npm install manifold-mcp-serverMCP Clients
Claude Desktop, Cline
JSON
{
"mcpServers": {
"manifold": {
"command": "node",
"args": [
"<YOUR_PATH_TO_MANIFOLD_MCP_SERVER>/build/index.js"
],
"env": {
"MANIFOLD_API_KEY": "<YOUR_MANIFOLD_API_KEY>"
}
}
}
}<YOUR_PATH_TO_MANIFOLD_MCP_SERVER> is the folder npm install manifold-mcp-server created. node_modules/manifold-mcp-server inside the directory you ran it in, so the path ends in node_modules/manifold-mcp-server/build/index.js (the package's bin is ./build/index.js). <YOUR_MANIFOLD_API_KEY> is the API key you generate in your Manifold Markets profile settings.
