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Who Bought or Sold a Token
x402
Who Bought or Sold a Token is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-12).
Analyzes DEX swap events for a token over 1–24 hours to return buy/sell counts, USD volumes, net flow, top wallets, and largest trades across 7 major EVM chains.
Price / call$0.006
Success—
StatusUnknown
How this service works
Who bought and who sold a token in the last hours: buy and sell count and USD volume, net flow, buy/sell ratio, the top buyer and seller wallets with net USD, and the largest trades, read from the swap events of its biggest DEX pools (Uniswap v2/v3 style, Aerodrome, Velodrome, PancakeSwap, Trader Joe and more) on Base, Ethereum, BSC, Arbitrum, Polygon, Avalanche or Optimism. Flags one-sided selling and a single wallet dumping. For trading agents before or after a buy. Window 1 to 24 hours.
Output
Returns buy and sell counts, total USD buy/sell volume, net flow (buy minus sell USD), buy/sell ratio, flags for one-sided selling and single-wallet dumping, ranked list of top buyer and seller wallet addresses with their net USD traded, and the largest individual trades observed from DEX swap events.
Example use cases
Pre-buy due diligence on new token
“I'm thinking about buying this token on Base — can you pull the last 6 hours of buy and sell activity for 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed and tell me if there's heavy selling pressure or any whale dumping?”
Detect whale dumping after launch
“Check the last 2 hours of trading for token 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E on Avalanche — I want to know if a single wallet is responsible for most of the sells and what the net flow looks like.”
Post-buy monitoring for exit signals
“I just bought a token on Arbitrum at 0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8 — monitor the last 12 hours of swap activity and flag if one-sided selling starts or if the sell volume in USD is overtaking buys.”
Technical details
Endpoint
POSThttps://agentsvc.io/api/v1/proxy/token-flows?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need granular, on-chain buy/sell flow analytics for a specific token on a major EVM chain — especially when evaluating dump risk, whale activity, or net trading pressure before or after a trade. Prefer this over generic price APIs when you need wallet-level detail and DEX-sourced swap event data across Uniswap v2/v3-style and other DEX protocols.
Side effects
- Invalid or unrecognized token contract address returns an error or empty result
- Token has no DEX pools on the specified chain — no swap data available
- Hours parameter outside 1–24 range is rejected or clamped
- Unsupported chain name returns a validation error
- Very new tokens with insufficient swap history may return sparse or zero data
- Payment failure (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | base, ethereum, bsc, arbitrum, polygon, avalanche or optimism. Default base |
| hours | number | Window in hours, 1 to 24 (shortened on very fast chains) |
| token | string | Token contract address |
Tags
x402
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