Base Token Sell Check
x402Grade BLast checked 38 min ago
POST https://base-facts.yankii.fr/v1/sellcheck
Base honeypot and tax check for trading agents: simulates a small buy and an immediate sell of the token on its deepest WETH pool (Uniswap v2/v3, Aerodrome) inside eth_call, and returns buy tax, sell tax, round-trip loss and whether the sell reverted. $0.005. Simulation at one block, not a guarantee.
Price$0.005per chain read · paid in USD on Base
Uptime100%
3/3 probes · 1030 ms
Score74Grade B
Paid usage, 30 days3payers · 3 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://base-facts.yankii.fr/v1/sellcheck"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 10:01 | Valid 402 | 402 | 709 ms | $0.005 |
| 2026-10-11 05:30 | Valid 402 | 402 | 956 ms | $0.005 |
| 2026-10-11 01:15 | Valid 402 | 402 | 1030 ms | $0.005 |
| 2026-10-10 20:45 | Valid 402 | 402 | 1093 ms | $0.005 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves