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Base Token Exit Check (Simulated Buy+Sell)
x402
Base Token Exit Check (Simulated Buy+Sell) is a paid API for AI agents from apexfaucet.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Simulates a full round-trip buy and sell of a Base token via its deepest Uniswap v2/v3/v4 pool against ETH/WETH in a single block, returning net ETH recovered, round-trip cost, revert reasons, token metadata, and renouncement status.
Price / call$0.01
Success—
StatusUnknown
How this service works
Honeypot check for Base tokens: a real buy and sell simulated on Uniswap before you trade. Can you get out of this Base token, and what does it cost? Pass a Base token address: we find its deepest Uniswap v2, v3 or v4 pool against WETH or ETH (hooks included), then EXECUTE a buy and a full sell in one simulated Base block and return the ETH that comes back, the round-trip cost, and the revert reason if either leg fails. Plus name, supply and whether ownership is renounced.
Output
Returns the ETH recovered after a simulated full sell, the round-trip cost in ETH, the deepest pool found (including v4 hooks), revert reason if either the buy or sell leg fails, token name, total supply, and whether contract ownership has been renounced. All figures come from a simulated execution on Base, not an estimate.
Example use cases
Honeypot detection before buying
“Before I ape into this Base token at 0x1234abcd…, can you simulate a buy and a full sell in one block and tell me if the sell would revert, how much ETH I'd recover, and whether the owner has renounced the contract?”
Portfolio exit feasibility check
“I'm holding this Base token at 0xdeadbeef… and I need to know if I can actually sell it — run the exit simulation and give me the round-trip ETH cost and any revert reason.”
Token vetting for trading bot
“My trading bot is considering this Base token at 0xabc123… — simulate a real buy and sell through its deepest Uniswap v2, v3, or v4 pool and return the net ETH back, the cost to exit, and whether ownership is renounced.”
Technical details
Endpoint
GEThttps://apexfaucet.xyz/api/x402/base-exit-check/:token?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify whether a Base token can actually be sold (not just estimated), especially to detect honeypots or illiquid tokens before committing capital. It is superior to static liquidity checks because it executes both legs in a single simulated block against the real deepest Uniswap pool. Prefer this over Arc-specific endpoints when the token is not an Arc launch, and over generic price APIs when you specifically need exit feasibility and revert diagnostics.
Side effects
- Token address not found or invalid — no pool returned, revert reason provided
- No Uniswap v2/v3/v4 pool exists for the token against WETH/ETH — returns error indicating no liquidity
- Sell leg reverts (honeypot) — returns revert reason and zero ETH recovered
- Buy leg reverts — returns revert reason for buy failure
- Network or RPC error on Base — endpoint may return 5xx or timeout
- Malformed token address — API returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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