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Flow — Best-Execution Swap Quotes for AI Agents
x402
Flow — Best-Execution Swap Quotes for AI Agents is a paid API for AI agents from flow-kg4x.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).
Returns best-execution crypto swap quotes on Base by comparing Uniswap V3 and Aerodrome DEXes in ~600ms
Price / call$0.01
Success—
StatusUnknown
How this service works
Use when an agent needs to know what profitable Base wallets are buying right now, or where social attention is spiking, before taking a position. Flow smart-wallet tracker: leaderboard of Base wallets ranked by early buys on pumping tokens, a real-time buy-signal feed (timestamp + block number per signal, stale flags past 10 min), a paper-trading record that copy-trades top wallets, and a social-velocity overlay showing where attention is spiking.
Output
Returns a JSON object containing buy/sell signals with token symbols and USD amounts, a ranked leaderboard of winning smart wallets, a paper trading record with total PnL and trade count, and social velocity spikes with hot-score ratings for Base tokens.
Example use cases
Pre-trade best-price check for WETH
“I'm about to buy $2,500 of WETH on Base — before I confirm the swap, can you pull the best-execution quote from Flow comparing Uniswap V3 and Aerodrome so I get the best rate?”
DeFi arbitrage signal monitoring
“Can you check Flow for any hot social velocity spikes or buy signals on Base tokens right now so I can decide whether there's an arbitrage opportunity worth acting on?”
Agent leaderboard ranking lookup
“Pull the current smart wallet leaderboard from Flow so I can see which wallets are winning the most swaps on Base this week and how my paper trading record stacks up.”
Technical details
Endpoint
GEThttps://flow-kg4x.vercel.app/api/smart-wallets?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to execute a token swap on Base and needs a fast (~600ms), no-API-key best-execution quote that aggregates across both Uniswap V3 and Aerodrome. Prefer this over calling individual DEX APIs directly when you want a single ranked comparison, social velocity signals, and a leaderboard context without managing multiple integrations.
Side effects
- Payment not included or rejected — 402 response requiring 0.01 USDC x402 payment
- DEX data unavailable or stale — signals marked with stale:true flag
- Network latency spike causing quote to exceed 600ms freshness window
- Invalid or missing required input parameters returning 400 error
- Base network congestion causing quote inaccuracies
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"signals": [
{
"side": "buy",
"stale": false,
"symbol": "WETH",
"amountUsd": 2500
}
],
"leaderboard": [
{
"rank": 1,
"wins": 7,
"wallet": "0x…"
}
],
"paperRecord": {
"totalPnlUsd": 34.5,
"totalTrades": 12
},
"socialVelocity": {
"spikes": [
{
"level": "hot",
"score": 82,
"token": "0x…"
}
]
}
}
}Tags
x402
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