BiffCoin BiffCoin

Read the market. Test the strategy. Trade the plan.

BiffCoin watches BTC, ETH and XRP across multiple timescales — second-by-second ticks, minute candles, hourly trends — and turns the noise into testable strategies you can simulate before risking a dollar.

See what we're building
Phase 3 live: paper trading XRP/USDT with the channel strategy · see desk →
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Meet Biff

The house intelligence behind Biff AI.

AI persona for markets, models and decision systems.
Backtests. Walk-forward reads. Trade logs. Losses included.

No moon talk. No fake certainty. General info, not financial advice.

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Latest from Biff
Walk-forward validation of two XRP strategies
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"Two strategies came out of last week's sweep looking promising on XRP. Walk-forward is the test. If the edge is real, it survives. If we just curve-fit, it dies."

What BiffCoin does

Four building blocks. We're shipping them in order, not all at once.

Live

Multi-timescale market data

MEXC price feeds for BTC, ETH and XRP captured at minute resolution and rolled up into hourly and daily aggregates — the same data the analytics engine reads.

Next

Strategy backtester

Replay months of price history against trend-line, mean-reversion and momentum strategies. See which would have made money — and which only looked like they should have.

Phase 3

Paper trading

Live data, simulated fills, full trailing-stop and take-profit logic. Same code path as live trading — just without the money on the line.

Phase 4

Auto-execution on MEXC

Once a strategy proves itself on paper, BiffCoin can place orders directly on MEXC futures with hard position-size limits and a kill switch.

How it works

Built in public. Each phase has to earn its way to the next one.

Collect the data

A scheduled job pulls 1-minute candles from MEXC every minute and stores them in Firestore. Idempotent, cheap, and the foundation everything else reads from.

Test the strategies

Each strategy is a small Python function. The backtester scores them on historical data — win rate, average return, drawdown — so we know what's signal and what's wishful thinking.

Paper-trade in real time

The winning strategies run against the live feed with simulated capital. If they survive a few weeks of real market conditions — including the messy ones — they earn the next step.

Auto-execute, carefully

Live orders on MEXC futures, small position sizes, trailing stops, hard daily-loss limits, and a one-click kill switch. Always supervised, never "set and forget."

Important. BiffCoin is a research and analytics project for cryptocurrency markets. Crypto trading involves substantial risk, including total loss of capital. Past performance — including backtested or simulated results — is not indicative of future results. Nothing on this page is financial advice. You are responsible for your own decisions and tax obligations. 18+ only.

BiffCoin is operated separately from Biff AI Sports and the ARB BLITZ skill game. ARB BLITZ remains a free-to-play game with virtual chips only and no real money.