Best swap quotes across Uniswap, SushiSwap, Aerodrome -- price impact, route, slippage. Pre-trade essential. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Dex Quotes X402 is an MCP project maintained in the br0ski777/dex-quotes-x402 repository. The maintainer describes its purpose as “Best swap quotes across Uniswap, SushiSwap, Aerodrome -- price impact, route, slippage. Pre-trade essential. Pay-per-call via x402 (USDC on Base L2) -- no API key…”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://dex-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 |
|---|---|
| bestDex | - which DEX offers the best rate (Uniswap, SushiSwap, Aerodrome) |
| amountOut | - expected output token amount |
| priceImpact | - percentage price impact of the trade |
| minimumReceived | - minimum output after slippage tolerance |
| route | - swap path (e.g. USDC -> WETH -> TOKEN) |
| gasEstimateUsd | - estimated gas cost in USD |
| dex_get_swap_quote | |
| tokenIn | string |
| tokenOut | string |
| amount | string |
| chain | string |
{
"mcpServers": {
"dex-quotes": {
"url": "https://dex-quotes.api.klymax402.com/mcp"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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