1. Introduction

The Gemini AI Trading Bot v1.00 is an advanced hybrid Expert Advisor (EA) developed for the MetaTrader 5 platform. By bridging the powerful structural trading capabilities of MQL5 with cutting-edge Large Language Models via the Google Gemini API, this EA acts as an autonomous AI-driven market analyst and execution system.

Unlike traditional algorithmic bots that rely solely on rigid indicator math, this EA exports deep multi-timeframe market data into structured JSON objects, broadcasts them directly to Google Gemini, and receives an institutional-grade, natural-language price action analysis coupled with explicit programmatic trading instructions (Buy, Sell, Close, or Modify Orders).

2. Core Functional Architecture

The bot utilizes a sophisticated blend of AI reasoning and systemic safety measures to scan, filter, and execute market setups:

2.1 Multi-Timeframe (MTF) Data Ingestion

During each analysis cycle, the EA extracts an array of Open-High-Low-Close-Volume (OHLCV) candle definitions across three separate timeframes to establish a strict top-down technical approach:

• H4 Timeframe: Establishes the primary market bias, macro structure, and institutional supply/demand zones.
• H1 Timeframe: Detects medium-term swing alignment and serves as directional confirmation.
• M15 Timeframe: Pinpoints the localized execution environment, micro liquidity sweeps, and immediate candlestick entries.

2.2 Smart Reversal Filter

To insulate your capital against aggressive stop-hunting and over-extended market cycles (especially prevalent on volatile instruments like Gold – XAUUSD), the EA embeds a native MQL5 Smart Reversal Filter. Before confirming an AI trade entry, it performs an algorithmic validation:

• Impulse Leg Exhaustion: Measures the momentum of the recent impulse move over a specified lookback period against the Average True Range (ATR). A movement exceeding the defined threshold signifies an exhausted leg.
• Wick Rejection Ratio: Analyzes the closest closed candle’s structural geometry. It checks if the lower wick (for Buy setups) or upper wick (for Sell setups) exceeds a specific percentage of the total candle range, filtering out generic breakouts.

2.3 Dual-Chain Dollar Cost Averaging (DCA) Hedge Grid

The EA features three flexible entry models, managing risk independently across parallel sequences via distinct tracking tokens (Magic Numbers):

• Single Shot: Executes a single order profile and enters a standby state until the trade is fully resolved via SL or TP before seeking the next entry.
• DCA by Step (Auto): Programmatically executes structural add-on orders based on a strict price-step model when an active trade runs into temporary drawdowns, operating entirely offline without demanding recurring AI confirmation calls.
• DCA Step + AI Confirmation: Merges grid mathematics with LLM oversight. Add-on grid tiers will only activate if the latest live Gemini API direction aligns with the running grid chain’s profile.

3. Step-by-Step Google Gemini API Key Setup

To enable communication between MetaTrader 5 and the Google Gemini models, you must obtain a valid API key and authorize the endpoint within your MT5 Terminal settings.

1. Access Google AI Studio: Open your web browser and navigate to the official Google AI Studio developer portal at https://aistudio.google.com/.
2. Authenticate with Google Account: Sign in using your standard Google or Google Workspace credentials. Review and accept the platform terms of service.
3. Generate the API Key: Click on the prominent “Get API Key” button located in the sidebar or top navigation header. Select “Create API Key”, then allocate the key to either a new or existing Google Cloud Project.
4. Securely Copy Your Key: A modal window will display a unique alphanumeric string beginning with AIzaSy.... Copy this string immediately and store it securely. Treat this key like a private financial password; anyone possessing it can utilize your processing budget.
5. Configure MetaTrader 5 Security Options: Launch your MT5 Terminal. Navigate to the top menu and select Tools → Options (or press Ctrl + O). Open the Expert Advisors tab.
6. Whitelist the Gemini Endpoint: Check the box labeled “Allow WebRequest for listed URL:”. Double-click the empty addition row and precisely paste the following endpoint address:
   https://generativelanguage.googleapis.com
   Click OK to save the configuration changes.

4. Parameter Reference Guide

The input parameters control the operational logic, risk profiles, and communication configurations of the EA:

4.1 API Configuration: Gemini AI Trading Bot

4.2 Trading Strategy & Multi-Timeframe Settings

4.3 Execution & DCA Parameters: Gemini AI Trading Bot

5. Operational Workflow & Core Rules

5.1 Pre-Flight Safety Inspections

Before spending API resources, local verification processes validate current market conditions. The cycle immediately halts if the real-time spread exceeds InpMaxSpread, or if the current account drawdown crosses your InpMaxDailyLossMoney circuit breaker.

5.2 Top-Down Analysis Protocol

1. Macro Identification: The model maps out underlying structures on the H4 data, identifying the core trend.
2. Intermediate Alignment Check: The model moves down to the H1 context to verify if medium-term structural swings align with the broader H4 bias.
3. Localized Entry Execution: The model evaluates the lower M15 structure exclusively to refine structural entries.

6. Charts Display & Graphical Interface: Gemini AI Trading Bot

• Header Control Status: Displays live operational readouts (e.g., Ready, Analyzing..., OK).
• Account Performance Monitor: Tracks metrics like total running tickets relative to your caps, alongside real-time calculations tracking net daily currency returns.
• Interactive Synchronization Engine: Features an embedded “UPDATE” button. Clicking this element overrides the automated timer grid, capturing an immediate market snapshot.

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