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ChainK9 Exit Check – Token Honeypot & Sell Risk API
x402
ChainK9 Exit Check – Token Honeypot & Sell Risk API is a paid API for AI agents from api.chaink9.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-30).
Forks a blockchain and executes real sandbox buy/sell simulations to detect honeypots and exit restrictions on ERC-20/BEP-20 tokens before trading.
Price / call$0.04
Success—
StatusUnknown
How this service works
Token risk checks for BNB Smart Chain, Ethereum and Base, for AI agents and trading bots. ChainK9 forks the chain and really buys and sells a token in a sandbox before you do, so a honeypot is caught by what it does, not by what its code looks like.
Output
Returns a JSON object with a trades array (each entry has status, amount_in, amount_out), the holder's token balance, whether trade sizes are independent, the block number and hash the fork was based on, chain ID, any limit warnings, and cost metadata including elapsed time, RPC call count, and fork transaction count.
Example use cases
Pre-trade honeypot check for trading bot
“Before my bot buys this token on BNB Smart Chain, simulate a buy and sell of 500000,1000000,5000000 base units of token 0xabc...123 using holder wallet 0xdef...456 to check if it's a honeypot or has sell restrictions.”
Multi-amount exit risk assessment on Ethereum
“Check if token 0x111...222 on Ethereum is safe to exit — simulate sells of 100000,500000,2000000,10000000 base units using holder 0x333...444 and tell me which sizes succeed or fail.”
Rug pull detection before sniping a new token
“I'm about to snipe a new token on Base — can you first fork the chain and simulate buying and selling 250000 base units of 0xfff...888 using holder wallet 0xaaa...bbb to confirm I won't get stuck?”
Technical details
Endpoint
GEThttps://api.chaink9.com/exit-check?utm_source=zero.xyzWhen to prefer
Use ChainK9 Exit Check when you need behavioral proof — not just static code analysis — that a token can actually be sold. Unlike heuristic scanners that read bytecode, this endpoint forks the live chain and executes real transactions in a sandbox, catching dynamic honeypots, runtime-gated sell blocks, and hidden tax mechanisms that static tools miss. Prefer this before any automated trade on BSC, Ethereum, or Base, especially for new or unaudited tokens.
Side effects
- Invalid token or wallet address format (must be 0x-prefixed 40 hex chars)
- Token contract not found on specified chain
- Insufficient liquidity for any of the requested trade sizes — trade may fail in simulation
- Unsupported chain value (only bsc, eth, base, arc accepted)
- Payment failure via x402 protocol before check is executed
- RPC or fork infrastructure timeout causing no result
- Holder wallet has zero balance of the token, making sell simulation impossible
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cost": {
"elapsed_ms": 2000,
"local_rpc_calls": 40,
"fork_transactions": 4
},
"data": {
"trades": [
{
"status": "succeeded",
"amount_in": "10",
"amount_out": "1"
}
],
"balance": "100",
"independent_sizes": true
},
"tool": "exit-check",
"block": 1,
"limits": [
"Only requested sizes and route are tested."
],
"chain_id": 56,
"block_hash": "0x…",
"observed_at": "2026-10-18T00:00:00Z"
}
}Tags
x402
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