MAIN MCP Server

MCP (Model Context Protocol) server for the MAIN DEX on Base. Provides AI agents (Claude, Cursor, etc.) with tools to interact with the protocol: swap tokens, manage liquidity, enter/exit ALM strategies, and more.

Connecting to Claude

Claude Code:

claude mcp add main-mcp --transport http https://api.main.exchange/mcp

MCP Protocol

The server implements MCP spec 2025-03-26 over Streamable HTTP transport.

# Initialize
curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"test","version":"1.0.0"}}}'

# List tools
curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}' \
  | jq '.result.tools[] | {name, description}'

# Health
curl https://api.main.exchange/mcp/health

x402 Payments

Some tools require USDC payment via the x402 protocol. When a paid tool is called without payment, the server responds with a JSON-RPC error containing payment requirements (amount, recipient, network). x402-compatible clients handle this automatically.

Paid tools: createPool, launchToken

Tools

Tokens

getTokens — Get all tokens in the protocol sorted by trading volume.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getTokens","arguments":{}}}' \
  | jq '.result.content[0].text | fromjson'

approveTokens — Prepare an ERC20 approve transaction.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"approveTokens","arguments":{"tokenAddress":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","spenderAddress":"0x002E67c3F7BF96eB3aA4066073923e415581d385"}}}' \
  | jq '.result.content[0].text | fromjson'

launchToken (paid via x402) — Launch a new ERC-20 token on MAIN. Returns calldata for TokenFactory.createToken. Logo and banner must be uploaded to IPFS beforehand (see IPFS upload endpoint in tool description). All token data is immutable after creation.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"launchToken","arguments":{"name":"My Token","symbol":"MTK","totalSupply":"10000000","logo":"bafkreibgxsqxrkrha3oqoatypp4gpuemft47ablrgxkfucqn2rvhsdwaka","description":"A cool token","website":"https://example.com"}}}' \
  | jq '.result.content[0].text | fromjson'

Trading

getPrice — Get a swap quote: how much tokenOut for a given amount of tokenIn.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getPrice","arguments":{"amount":"1000000000000000000","tokenIn":"0x4200000000000000000000000000000000000006","tokenOut":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}}}' \
  | jq '.result.content[0].text | fromjson'

quoteSwap — Get a full swap quote with calldata for execution via SwapRouter.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"quoteSwap","arguments":{"amountIn":"1000000","tokenIn":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","tokenOut":"0x4200000000000000000000000000000000000006","recipient":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

Pools

getPools — Get liquidity pools with TVL, volume, and fees.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getPools","arguments":{}}}' \
  | jq '.result.content[0].text | fromjson'

getPoolAPR — Get pool APR (all pools or a specific one).

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getPoolAPR","arguments":{}}}' \
  | jq '.result.content[0].text | fromjson'

addLiquidityToPool — Prepare a transaction to add liquidity to an Algebra pool.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"addLiquidityToPool","arguments":{"poolAddress":"0xPOOL","amount0":"1000000000000000000","amount1":"1000000","userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

removeLiquidityFromPool — Prepare a transaction to remove liquidity.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"removeLiquidityFromPool","arguments":{"tokenId":"123","percentage":100,"userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

createPool (paid via x402) — Create and initialize a new CLMM pool on MAIN. Accepts tokens in any order and a human-readable price. The tool fetches token decimals on-chain, sorts tokens, calculates sqrtPriceX96, and checks that the pool doesn't already exist.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"createPool","arguments":{"tokenA":"0xTOKEN_A","tokenB":"0xTOKEN_B","price":"0.1"}}}' \
  | jq '.result.content[0].text | fromjson'

Positions

getPositions — Get all open liquidity positions for an address.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getPositions","arguments":{"userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

Smart Wallet

ALM strategies are executed through a smart wallet — a deterministic proxy contract deployed per user. The smart wallet must exist on-chain before entering any strategy.

deploySmartWallet — Deploy a smart wallet for the user. Must be called once before using any strategy tools. The transaction must be sent directly from the user's EOA (the factory uses msg.sender as the deployment salt).

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"deploySmartWallet","arguments":{"userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

Strategies

getStrategies — Get available ALM strategies with metrics.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getStrategies","arguments":{}}}' \
  | jq '.result.content[0].text | fromjson'

getStrategyPositions — Get user positions in ALM strategies.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"getStrategyPositions","arguments":{"userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

enterToStrategy — Enter an ALM strategy. Returns calldata for smart wallet. Requires a deployed smart wallet (use deploySmartWallet first).

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"enterToStrategy","arguments":{"strategyId":"alm-v1","amount0":"500000","amount1":"0","userAddress":"0xYOUR_ADDRESS","duration":86400,"stopLoss":10,"takeProfit":25}}}' \
  | jq '.result.content[0].text | fromjson'

exitFromStrategy — Exit an ALM strategy. Requires a deployed smart wallet.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"exitFromStrategy","arguments":{"strategyId":"alm-v1","positionId":"5","percentage":10000,"userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

increaseStrategy — Increase a position in an ALM strategy. Requires a deployed smart wallet.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"increaseStrategy","arguments":{"strategyId":"alm-v1","positionId":"5","amount0":"500000","amount1":"0","userAddress":"0xYOUR_ADDRESS"}}}' \
  | jq '.result.content[0].text | fromjson'

Broadcast

broadcastTx — Broadcast a signed transaction to the blockchain.

curl -s -X POST https://api.main.exchange/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"broadcastTx","arguments":{"signedTxHex":"0xSIGNED_TX"}}}' \
  | jq '.result.content[0].text | fromjson'