We check if you can sell, before you buy. Instant token verification across 16+ execution paths on Base, BSC, Ethereum, Solana.
Know the exit before you enter.
Real-time verification at chain speed.
Across Base, BSC, Ethereum, Solana. Uniswap V4, Flaunch, Clanker, PancakeSwap, Aerodrome, Raydium, Orca, Meteora, Pump.fun.
One call. Signed verdict.
Built for trading bots and AI agents. One call returns a lean, ed25519-signed verdict in under a second.
$ curl -X POST https://api.sfgengine.com/v1/scan \ -H "Authorization: Bearer sfg_live_***" \ -d '{ "token": "0x4ed4…2913", "chain": "base" }' → 200 OK { "status": "safe", "chain": "base", "scan": { "buyTax": "0%", "sellTax": "0%", "priceImpact": "0.12%" }, "receipt": { "verdict": "safe", "verdict_confidence": "high", "signature": "ed25519:9f3c…a71b", "receipt_hash": "sha256:7e2d…04af" }, "scanTime": "0.84s" }
Verify from your pocket.
The full engine inside Telegram — paste a token, get the exit verdict in under a second. No wallet, no signup.
Open TG Mini AppFREEEvery scan, on record.
Scan history, usage, and signed receipts in one place. Re-verify any token, audit any verdict, export the proof.
Supported protocols.
Verification across every major execution path on Base, BSC, Ethereum, and Solana.
Questions, answered.
SFG Engine is a real-time token verification engine across Base, BSC, Ethereum, and Solana. Instead of reading contract code and guessing, we verify the exit path on-chain — we check whether you can actually sell, before you buy. The result is a fact, not a probability: sellable or not, and the exact tax. One ed25519-signed verdict, under a second.
We verify the exit path across multiple trade sizes on-chain. If selling is blocked, the verdict is sell-blocked. If you would get back less, the exact tax is calculated. No code-pattern guessing, no probability scores — every scan returns a deterministic, signed verdict in under a second.
Base, BSC, Ethereum, and Solana — all live. Base: Uniswap V2 / V3 / V4, Aerodrome, Clanker, Flaunch. BSC: PancakeSwap V2 / V3. Ethereum: Uniswap V2 / V3 / V4. Solana: Raydium, Orca, Meteora, Pump.fun. Coverage includes the newest execution paths — Uniswap V4, Flaunch, and Clanker.
Safe — buy and sell work with minimal tax. Sell-blocked — selling is blocked or returns nothing. High Tax — sell works but the tax is uneconomic (exact % shown). No Liquidity — no usable trading pool found. Fair Launch — token is still in its pre-trading phase. Conditional — the outcome depends on trade size. Every scan also carries a contract risk assessment.
Extremely high, because we verify the exit path itself, not code patterns. But contracts can change: owners can enable taxes after a scan, upgradeable contracts can alter logic, and time-based restrictions can activate later. Always DYOR and start with small amounts.
5 free scans per day on the website and via the Telegram Mini App (@sfgengine_bot). Need more — website plans start at $29/mo (Starter, 500 scans) up to Premium at $129/mo (5,000 scans). Prefer one-shot? Scan-credit packs from $29 for 500 credits — credits never expire.
Every scan returns up to 55 data points: the verdict with a score breakdown, exact buy/sell tax, protocol & pool details, liquidity, token price, market cap, FDV, holder count & growth trends, top holders with labels, distribution, volume analytics, price history, token age, V4 pool intelligence, and a contract risk assessment — all in one call, under a second.
Scan tokens directly inside Telegram — no website needed. Open @sfgengine_bot, tap the menu button, and get the full scanning experience. Pay for scan packs with USDT on the TON network via TON Connect. Same engine, same speed, mobile-native.
Yes — that is the core use case. Trading bots, DEX aggregators, wallets, and AI agents call the SFG API before a swap: pay per scan, get an instant signed verdict, no human in the loop. SFG is built to be the verification layer the automated trading economy routes through.
Yes. The SFG API returns a lean, ed25519-signed verdict per call over a simple REST endpoint with Bearer keys — built for trading bots, DEX aggregators, wallets, and analytics platforms. Plans start at $99/mo. Reach out on Telegram or X to get set up.
Contact us on Telegram (@sfgengine_bot) or X (@SFGEngine) with the token address, chain, and details. We continuously refine the engine, and every report helps improve accuracy for the whole ecosystem.