# Jupiter DEX Quote API via klymax402

> Jupiter DEX Quote API via klymax402 is a paid API for AI agents from klymax402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Returns a swap quote from Jupiter aggregator on Solana, including route plan, input/output amounts, and price impact for a given token pair and amount.

## Facts

- Endpoint: GET https://klymax402.com/api/jupiter-quotes/api/quote
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/jupiter-dex-quote-api-via-klymax402-cf0ee137
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4CshAveD6Q98u_hJjHC7C

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability jupiter-dex-quote-api-via-klymax402-cf0ee137
```

Example prompt: Get me a Jupiter swap quote for 1 SOL (1000000000 lamports) to USDC with 0.5% slippage tolerance — what's the best route and how much USDC will I receive?

## When to prefer this

Use this endpoint when you need a real-time swap quote on the Solana blockchain via Jupiter aggregator without managing your own Jupiter API key. It is ideal for agents that need pre-trade price checks, route analysis, or price impact estimation for SOL, USDC, USDT, or other Solana SPL tokens before executing a swap. Prefer this over direct Jupiter API calls when using the x402 micropayment pattern with no API key setup required.

## Known failure modes

- Invalid or unknown token mint address returns an error or empty route
- Amount too small for any available liquidity results in no route found
- Unsupported token pair with no liquidity path returns empty routePlan
- Malformed amount string (non-numeric) causes a validation error
- Network or Jupiter API downtime causes a 5xx error from the proxy
- Slippage parameter out of acceptable range may be rejected

## How this service works

One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.

## Output

Returns a JSON object with the input mint address, output mint address, raw input amount, raw output amount, price impact percentage, slippage in basis points, and an array of route plan steps showing how the swap would be routed across liquidity pools on Solana.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "inputMint",
      "outputMint",
      "amount"
     ],
     "properties": {
      "amount": {
       "type": "string",
       "description": "Amount in raw lamports/smallest unit. e.g. 1000000000 = 1 SOL, 1000000 = 1 USDC"
      },
      "slippage": {
       "type": "number",
       "description": "Slippage tolerance in basis points. Default 50 (0.5%). e.g. 100 = 1%"
      },
      "inputMint": {
       "type": "string",
       "description": "Input token mint address or symbol (SOL, USDC, USDT). e.g. So11111111111111111111111111111111111111112 or SOL"
      },
      "outputMint": {
       "type": "string",
       "description": "Output token mint address or symbol (SOL, USDC, USDT). e.g. EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v or USDC"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "inAmount": "example",
  "inputMint": "example",
  "outAmount": "example",
  "routePlan": [],
  "outputMint": "example",
  "slippageBps": 1,
  "priceImpactPct": "example"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/jupiter-dex-quote-api-via-klymax402-cf0ee137/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from klymax402.com](https://www.zero.xyz/host/klymax402.com/llms.txt)