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DEX Swap Quote — The Stall x402
x402
DEX Swap Quote — The Stall x402 is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.059/call, status unknown (last checked 2026-09-13).
Returns a DEX swap quote for a given token pair and amount across multiple EVM chains, including price, route, and slippage details.
Price / call$0.059
Success—
StatusUnknown
How this service works
Best-route DEX swap quote across 20+ chains via Li.Fi aggregator. Returns expected output, exchange rate, gas cost, price impact, and route (DEX/bridge names). Works for same-chain and cross-chain swaps. Use ETH/USDC/WBTC symbols or ERC-20 addresses. Chains: ethereum, base, polygon, arbitrum, optimism, bsc, avalanche, and more. $0.012/call — free upstream.
Output
Returns a swap quote including the estimated output token amount, exchange rate, DEX routing path, price impact, and slippage parameters for the specified token pair and chain(s).
Example use cases
Example prompt
“What's the best DEX quote to swap 0.5 ETH for USDC on Base mainnet right now, with a max slippage of 0.5%?”
Technical details
Endpoint
GEThttps://the-stall.intuitek.ai/cap/dex-swap-quoteWhen to prefer
Use this endpoint when you need a real-time DEX swap quote before executing a token swap on EVM-compatible chains (Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, Avalanche). Ideal for agents that need to check price, slippage, and routing without executing a trade. Requires no API key — pay $0.012 USDC per call via x402 on Base mainnet.
Side effects
- Unsupported chain ID or name returns an error
- Unknown or unlisted token symbol with no contract address provided
- Requested swap amount too small or too large for available liquidity
- Cross-chain pair with no route available returns no-quote error
- Invalid slippage value outside allowed range (0.0001–0.5) rejected
- Payment not included or insufficient USDC returns 402 response
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"slippage": 0.005,
"to_chain": "ethereum",
"to_token": "USDC",
"from_chain": "ethereum",
"from_token": "ETH",
"from_amount": "0.5"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
{
"route": [
"Integrator Fee",
"Kyberswap"
],
"fee_usd": 2.0906,
"quote_ts": "2026-06-12T05:11:15.735Z",
"to_chain": "1",
"to_token": "USDC",
"to_amount": 832.864665,
"from_chain": "1",
"from_token": "ETH",
"cross_chain": false,
"from_amount": 0.5,
"gas_cost_usd": 0.2322,
"price_impact": "unknown",
"exchange_rate": 1665.72933,
"to_amount_min": 828.700342,
"execution_time_seconds": null
}Tags
x402
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