How Yeaster works

a self-custodial momentum agent on BNB Smart Chain

open the control room →

Yeaster hunts crypto momentum on the BNB chain, fully autonomously. One mind reasons in four passes, decides with a god-tier-trader LLM, and executes self-custodially through Trust Wallet — every trade wrapped in a non-bypassable firewall and sealed into a tamper-evident proof chain. It buys, brackets, and exits on real funds; humans can lock it into a timed run and stop it only with a password.

The brain — one mind, four passes

SCREEN

Scout the 135-coin momentum universe with deterministic detectors (relative strength, breakouts, accumulation, volume surges, trending runners). Only tokens it can actually buy, bracket and sell are surfaced.

GRADE

Score each candidate across 8 dimensions — technicals, perps, whale flow, sector rotation, unlocks, social — weighted by how much real data backs them, plus a zero-weight scam/honeypot safety axis.

VET

An adversarial critic + hard safety blocks. A flagged honeypot/rug is vetoed; an unverifiable token is downgraded, never silently scored 'bad'.

COMMIT

A bold lead LLM picks ONE name (or stands down). The LLM is the decisive factor — if it's unavailable the agent stands down, never silently substituting a worse rule.

Guardrails — and why they're built this way

Non-bypassable firewall

Every trade is checked for allowlist, single-trade & position caps, slippage, drawdown and Safe-Mode — by code the decision layer cannot skip. An AI should never be trusted to police its own risk.

De-risk is always allowed

Selling back to a stable is never blocked, even in Safe Mode. You must always be able to reduce risk.

Approve-at-entry, so exits can't fail

The moment a token is bought it's approved for selling. Without it the FIRST stop/TP/trail would revert — protection that only looks real is worse than none.

Only exitable tokens

A token is tradeable only if its on-chain contract resolves. The agent can never enter something it couldn't later sell.

R-sizing + drawdown brake

Bets are sized in units of risk and shrink as drawdown grows; a losing streak shrinks them further. Lose, and Yeaster gets smaller.

Volatility-scaled exits

An ATR-3x trailing stop + wide take-profit. A flat % trail clipped winners on daily-bar noise; ATR gives each coin room proportional to its own volatility.

≥1 trade/day, safely

If nothing trades by day's end, one minimal safest trade fires — so the contest's trade-frequency gate is never missed.

Mainnet double-gate + operator password

No real funds move until two env gates are set; the kill switch and unlock always require an operator password. Irreversible power needs deliberate, authenticated intent.

The exit engine

Every fill arms native on-chain brackets — 8% stop · 40% take-profit · ATR-3× trailing — that fire via Trust Wallet's watcher even if the agent is offline. As price climbs, the trailing stop ratchets up behind it; the bracket set was re-tuned on a 135-token real-OHLC backtest.

Operator controls

Launch a committed timed run — the chat locks, a live countdown ticks down, and the agent trades unattended. Unlock (password) stops it gracefully and sweeps orphan orders but keeps protective brackets; the kill switch (password) flattens everything to USDT. Manual swaps always show a trade intent you must approve.

The three sponsors — fused into one agent

CoinMarketCap

Market regime, technicals, derivatives, whale flow, sector rotation, unlocks, social + scam-safety — fused into the grade, and historical OHLCV for the backtester.

Trust Wallet (TWAK)

Self-custodial on-chain swaps + native stop/TP/ATR-trailing automations, token-risk reads, and x402 micropayments.

BNB Smart Chain

The on-chain venue — chain 56. The 148-token whitelist is the hard universe; BNB is gas (and manual-only), never an autonomous trade.

x402 · sell the daily alpha

The agent monetizes its edge: anyone can buy today's top pick with a real on-chain USDT micropayment. Pay → the server verifies the transfer on BSC → the alpha unlocks. Every sale is logged as revenue.

today's alpha · locked

Proof — every decision is verifiable

Each tick — the market snapshot, the full reasoning trace, the firewall verdict, and the outcome — is sealed into an append-only, SHA-256-linked chain. Any later edit breaks every downstream hash, so the agent's track record can be independently verified, not just claimed.