Jupiter MCP Server
Execute Solana token swaps via Jupiter's Ultra API, combining DEX routing and RFQ for optimal pricing.
Add to your client
Copy the config for your MCP client and paste it into its config file.
git clone https://github.com/kukapay/jupiter-mcp.git && cd jupiter-mcp && npm installPaste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"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"
}
}
}
}Step-by-step guides: Add to Claude Desktop · Add to Cursor · Add to Windsurf
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)
About Jupiter MCP Server
An MCP server for executing token swaps on the Solana blockchain using Jupiter's Ultra API. It fetches swap orders that combine DEX routing and RFQ for optimal pricing, then requests Jupiter to execute the swap on behalf of the wallet owner, handling slippage, priority fees, and transaction landing.
Tools & capabilities (2)
get-ultra-orderFetches 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-orderRequests 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.
When to use it
- Get a swap order to trade one Solana token for another (e.g. 1.23 SOL for USDC) with optimal pricing.
- Execute a previously fetched swap order on-chain using its request ID and transaction.
- Let an AI assistant perform Solana DEX swaps through natural-language prompts.
Security notes
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 FAQ
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.
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