Blog
Guides for running MT5 fleets in production.
Long-form, operator-level writing: telemetry contracts, freshness SLAs, lot audits, drawdown alerts and the reasons an observation-only architecture is safer. Every guide has a Spanish edition.
All guides
Read in the order that matches your fleet.
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Risk
FTMO daily drawdown: get the alert before the firm does
How prop firm daily loss limits are really calculated (equity, floating P/L, server reset), why EAs breach them, and the alert ladder that warns you in time.
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Operations
My EA stopped trading and I didn't notice: the MT5 checklist
The eight reasons an MT5 expert advisor silently stops trading, a two-minute triage order, and how a heartbeat monitor alerts you when an EA or VPS goes quiet.
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Prop firms
Prop firm rules your EA breaks without meaning to
Daily loss, news windows, lot caps, martingale bans, consistency, copy-trade detection: how expert advisors break prop firm rules and a nine-step self-audit to catch it first.
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Risk
EA lot size audit: requested lot vs executed lot
Where an MT5 expert advisor's lot size changes between calculation and fill (volume step, min/max, margin, partial fills), MQL5 code to log the full lot chain, and the 5% tolerance that separates rounding from a real problem.
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Architecture
Monitoring, copy trading or account management: know which one you are connecting
Three ways to let a tool or person near your MT5 account compared: observation-only monitoring, trade copiers and account management. What each can do, which credentials it needs, prop firm stance and five questions to ask first.
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Monitoring
MT5 fleet monitoring without touching the trade
Learn how to monitor multiple MT5 accounts in production using telemetry contracts, freshness SLAs, lot audits, and observation-only architecture for safer live operations.
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Risk
How to calculate drawdown in MT5, and which number to alert on
The four drawdown measures in MT5 explained with formulas and MQL5 code: balance vs equity, daily loss, static drawdown and per-EA attribution by magic number.
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Monitoring
A multi-account MT5 dashboard that tells you where to look
Four ways to monitor multiple MT5 accounts compared, the nine columns an operational dashboard needs, and the design rules that make it trustworthy at a glance.
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Prop firms
Compliance evidence beats compliance promises
Use telemetry, lot audits, and freshness checks to prove execution discipline during prop firm challenges and funded MT5 accounts with independent evidence.
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Telemetry
Stale telemetry is silent risk
Define freshness windows, stale telemetry handling, and alert thresholds for live MT5 expert advisors so silent data gaps never hide operational risk.
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Integration
Connect your MT5 EA to a monitoring API in five steps
Step-by-step MQL5 integration: allow WebRequest, add the include, send telemetry from OnTimer, fill the lot chain and fix error 4014 and other common failures.
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Architecture
Observation-only is a design choice, not a policy toggle
Why observation-only architecture reduces operational risk for MT5 fleets, prop firm desks, and algorithmic trading infrastructure without mutating live trades.
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Architecture
PostgreSQL row-level security for multi-tenant telemetry
A working multi-tenant RLS setup in PostgreSQL: FORCE ROW LEVEL SECURITY, separate migrator and app roles, transaction-local tenant context with set_config, pitfalls and the isolation test.