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SperaxOS DeFi Swap Quote API
x402
SperaxOS DeFi Swap Quote API is a paid API for AI agents from chat.sperax.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).
Returns an AI-powered swap quote for exchanging one token for another on DeFi protocols, payable via x402 micropayment with USDC on Base
Price / call$0.005
Success—
StatusUnknown
How this service works
AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.
Output
Returns a swap quote including estimated output token amount, exchange rate, price impact percentage, and optimal routing path for the requested token pair and input amount on the specified chain.
Example use cases
Pre-trade rate check before swap
“Before I swap 500 USDC to ETH on Base, can you pull a current quote so I can see the exchange rate and how much ETH I'd receive?”
Arbitrage opportunity detection
“Get me a swap quote for converting 1000 DAI to USDC on Base right now — I want to check if there's a meaningful price difference I can act on.”
Agent-driven DeFi portfolio rebalancing
“I'm rebalancing my DeFi portfolio — get me a swap quote for converting 0.5 WETH to USDC on Base so I can decide whether to execute the trade now.”
Technical details
Endpoint
GEThttps://chat.sperax.io/api/x402/v1/data/swap-quote?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time DeFi swap quote on Base chain before executing a trade, especially when you want AI-augmented route intelligence without managing API keys — paying only $0.005 USDC per call via x402. Prefer this over generic DEX aggregator APIs when operating within the SperaxOS ecosystem or when building wallet-native agents on Base.
Side effects
- Unsupported token pair returns an error or empty quote
- Invalid token address results in a 400 bad request
- Insufficient liquidity for requested amount returns no route found
- Network or RPC issues may cause delayed or failed responses
- Payment failure via x402 protocol blocks the request before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| if | string | |
| else | string | |
| properties | string |
Tags
x402
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