Building MT4/MT5 Expert Advisors in MQL5, Step by Step
How to specify, structure, test and hand over a MetaTrader Expert Advisor in MQL5 without treating a backtest as a promise of profit.
Oct 28, 2026 · 11 min read
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The DayDecoder blog
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Practical guides on AI integration, custom software, MVP planning, and Laravel, written by Prakash Tank from real client work.
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6 articles · Clear filters
MetaTrader Bot Integration with External APIs and a Python Bridge
How to connect MT4/MT5 Expert Advisors to Python or a web app without a second, accidental order path, including fail-closed behaviour when the bridge dies.
Oct 28, 2026 · 11 min read
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Testing, Backtesting and Deploying MT5 Expert Advisors on a VPS
From Strategy Tester to a documented VPS: modelling modes, walk-forward honesty, demo, and operations that matter more than a pretty equity curve.
Oct 28, 2026 · 11 min read
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Architecture of an Algo Trading Bot: Data, Strategy, Execution, Risk
The four planes of an algorithmic trading system, why the venue is the source of truth for positions, and how duplicate orders are born.
Oct 28, 2026 · 11 min read
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Building an Algo Trading Bot with Python and Broker APIs
A production sequence for Python against broker REST and WebSocket APIs: auth, idempotency, paper trading, and a kill switch a non-author can hit.
Oct 28, 2026 · 12 min read
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Backtesting and Risk Management for Algo Trading Bots
How to treat a backtest as a software test plus a research experiment, and how live risk limits belong in the order path rather than on a slide.
Oct 28, 2026 · 11 min read
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