How to add Jupiter MCP Server to Claude Desktop

Execute Solana token swaps via Jupiter's Ultra API, combining DEX routing and RFQ for optimal pricing. Paste the config into ~/Library/Application Support/Claude/claude_desktop_config.json and restart Claude Desktop.

Last updated June 14, 2026 · 27★ · stdio · no auth

Claude Desktop config for Jupiter MCP Server

git clone https://github.com/kukapay/jupiter-mcp.git && cd jupiter-mcp && npm install

{
  "mcpServers": {
    "jupiter-mcp-server": {
      "command": "node",
      "args": [
        "path/to/jupiter-mcp/server/index.js"
      ],
      "env": {
        "SOLANA_RPC_URL": "solana rpc url you can access",
        "PRIVATE_KEY": "your private key"
      }
    }
  }
}

Setup steps

1Open Claude Desktop → Settings → Developer → Edit Config (this opens ~/Library/Application Support/Claude/claude_desktop_config.json).
2Paste the Jupiter MCP Server config below under the top-level "mcpServers" key.
3Fill in any placeholder secrets (API keys, paths) in the snippet.
4Save the file, then fully quit and reopen Claude Desktop.
5Open a chat and confirm Jupiter MCP Server's tools appear under the 🔌 tools menu.

Before you start

Node.js version 18 or higher (for native fetch support)
A base58-encoded Solana wallet private key for signing transactions
Access to a Solana RPC endpoint (e.g. https://api.mainnet-beta.solana.com)

What Jupiter MCP Server can do in Claude Desktop

get-ultra-order

Fetches a swap order from Jupiter's Ultra API, leveraging both DEX routing and RFQ for optimal pricing. Inputs: inputMint, outputMint, amount (string), slippageBps. Output: JSON with requestId, transaction (base64-encoded), inputMint, outputMint, inAmount, outAmount, price.

execute-ultra-order

Requests Jupiter to execute the swap transaction on behalf of the wallet owner, handling slippage, priority fees, and transaction landing. Inputs: requestId, transaction (base64-encoded). Output: JSON with status, transactionId, slot, inputAmountResult, outputAmountResult, swapEvents.

Security

Requires a base58-encoded Solana wallet private key supplied via the PRIVATE_KEY environment variable. The server can sign and submit real on-chain swap transactions that move funds, so treat the private key as a high-value secret, prefer a dedicated low-balance wallet, and never expose it in shared configs or logs.

Jupiter MCP Server + Claude Desktop FAQ

Where is the Claude Desktop config file?

Claude Desktop reads MCP servers from ~/Library/Application Support/Claude/claude_desktop_config.json. Paste the Jupiter MCP Server config there under the "mcpServers" key and restart the client.

Is Jupiter MCP Server safe to use with Claude Desktop?

Which Jupiter API does this server use?

Jupiter's Ultra API, which combines DEX routing and RFQ (Request for Quote) for optimal swap pricing and also handles slippage, priority fees, and transaction landing on execution.

What do I need to provide to run it?

A Solana RPC URL (SOLANA_RPC_URL) and a base58-encoded wallet private key (PRIVATE_KEY), both supplied as environment variables in the MCP client config. Node.js 18+ is required.

How does a swap work end to end?

Call get-ultra-order with the input/output mints, amount, and slippageBps to receive a requestId and a base64-encoded transaction, then pass those to execute-ultra-order to have Jupiter execute the swap on-chain.

View repo Full Jupiter MCP Server page