Solana swap quotes via Jupiter aggregator -- best route, price impact, slippage, priority fees included. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Jupiter Quotes X402 is an MCP project maintained in the br0ski777/jupiter-quotes-x402 repository. The maintainer describes its purpose as “Solana swap quotes via Jupiter aggregator -- best route, price impact, slippage, priority fees included. Pay-per-call via x402 (USDC on Base L2) -- no API…”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://jupiter-quotes.api.klymax402.com/mcp. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| inputToken | - input token symbol and mint address |
| outputToken | - output token symbol and mint address |
| inAmount | - input amount in raw units |
| outAmount | - expected output amount in raw units |
| priceImpact | - price impact percentage (e.g. 0.12 = 0.12%) |
| minimumReceived | - minimum output after slippage tolerance |
| route | - array of DEX hops used (e.g. Raydium -> Orca) |
| priorityFee | - recommended priority fee in lamports |
| jupiter_get_swap_quote | |
| inputMint | string |
| outputMint | string |
| amount | string |
| slippage | number |
{
"mcpServers": {
"jupiter-quotes": {
"url": "https://jupiter-quotes.api.klymax402.com/mcp"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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