English Français العربية

Jupiter Solana Swap Quote API

Official registry Finance and payments

Solana swap quotes via Jupiter — best route, price impact, priority fees, USD pricing. x402.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse jupiter-solana-swap-quote-api 'https://jupiter-quotes.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "jupiter-solana-swap-quote-api": {
            "type": "sse",
            "url": "https://jupiter-quotes.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Jupiter Solana Swap Quote API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Jupiter Solana Swap Quote API

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.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "jupiter-quotes": {
      "url": "https://jupiter-quotes.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl "https://jupiter-quotes.api.klymax402.com/api/quote?inputMint=...&outputMint=...&amount=..."
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
jupiter_get_swap_quoteGET/api/quote$0.005Get best swap quote on Solana via Jupiter aggregator
jupiter_get_swap_quotePOST/api/quote$0.005Get best swap quote on Solana via Jupiter aggregator (POST variant)
jupiter_get_swap_quote

Use this when you need a swap quote on Solana. Returns the best route via Jupiter aggregator across all Solana DEXes with price impact and fee analysis.

Parameters

NameTypeRequiredDescription
inputMintstringyesInput token mint address or symbol (SOL, USDC, USDT). e.g. So11111111111111111111111111111111111111112 or SOL
outputMintstringyesOutput token mint address or symbol (SOL, USDC, USDT). e.g. EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v or USDC
amountstringyesAmount in raw lamports/smallest unit. e.g. 1000000000 = 1 SOL, 1000000 = 1 USDC
slippagenumbernoSlippage tolerance in basis points. Default 50 (0.5%). e.g. 100 = 1%

Returns

  • 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

Example response:

{"inputToken":{"symbol":"SOL","mint":"So111..."},"outputToken":{"symbol":"USDC","mint":"EPjF..."},"inAmount":"1000000000","outAmount":"67450000","priceImpact":0.05,"minimumReceived":"67112750","route":["Raydium V4"],"priorityFee":5000}

When to use: executing any Solana token swap. Essential for getting the best price, understanding slippage, and choosing the optimal route.

jupiter_get_swap_quote

Use this when you need a swap quote on Solana. Returns the best route via Jupiter aggregator across all Solana DEXes with price impact and fee analysis. POST variant of jupiter_get_swap_quote -- same params passed as JSON body instead of query string.

Parameters

NameTypeRequiredDescription
inputMintstringyesInput token mint address or symbol (SOL, USDC, USDT). e.g. So11111111111111111111111111111111111111112 or SOL
outputMintstringyesOutput token mint address or symbol (SOL, USDC, USDT). e.g. EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v or USDC
amountstringyesAmount in raw lamports/smallest unit. e.g. 1000000000 = 1 SOL, 1000000 = 1 USDC
slippagenumbernoSlippage tolerance in basis points. Default 50 (0.5%). e.g. 100 = 1%

Returns

  • 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

Example response:

{"inputToken":{"symbol":"SOL","mint":"So111..."},"outputToken":{"symbol":"USDC","mint":"EPjF..."},"inAmount":"1000000000","outAmount":"67450000","priceImpact":0.05,"minimumReceived":"67112750","route":["Raydium V4"],"priorityFee":5000}

When to use: executing any Solana token swap. Essential for getting the best price, understanding slippage, and choosing the optimal route.

Example agent prompts

  • "A swap quote on Solana"
  • "A swap quote on Solana"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Frequently asked questions

What is Jupiter Solana Swap Quote API?

Solana swap quotes via Jupiter — best route, price impact, priority fees, USD pricing. x402.

How do I install Jupiter Solana Swap Quote API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse jupiter-solana-swap-quote-api 'https://jupiter-quotes.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Jupiter Solana Swap Quote API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Jupiter Solana Swap Quote API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Jupiter Solana Swap Quote API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.