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Velvet DAO DeFi Token Swap
x402
Velvet DAO DeFi Token Swap is a paid API for AI agents from vu.velvetdao.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns the best swap route and ready-to-sign transaction data for a DeFi token exchange.
Price / call$0.01
Success—
StatusUnknown
How this service works
DeFi token swap: returns best route and ready-to-sign transaction data.
Output
Returns the optimal DEX route for the requested token swap along with fully constructed, ready-to-sign transaction data including expected output amount, routing path, gas estimates, and on-chain execution payload.
Example use cases
Example prompt
“Find me the best swap route to exchange 1 ETH for USDC on Base using my wallet 0xAbC123... and give me the ready-to-sign transaction data.”
Technical details
Endpoint
POSThttps://vu.velvetdao.xyz/api/v1/swap_402When to prefer
Use this endpoint when you need both a swap route recommendation AND a ready-to-sign transaction payload in one call, particularly within the Velvet DAO ecosystem. Ideal for AI agents that need to execute DeFi swaps on behalf of users without building transaction data manually.
Side effects
- Insufficient liquidity for the requested token pair — no route found
- Unsupported chain or token address — 400 error
- Slippage too high for the requested trade size
- Invalid wallet address format
- Payment not received or x402 payment header missing — 402 error
- Network congestion causing stale price data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| instruction | string | Natural-language swap instruction with wallet address |
Output
Schema · Response
{
"type": "json",
"example": {
"answer": "Best route via Uniswap V3: 10 USDC â 0.003 ETH",
"txdata": {}
}
}Tags
x402
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