Fyers Trading Journal: API v2 Auto-Sync & F&O Analytics (2026)

Fyers is one of India's most developer-friendly brokers, known for its clean API, fast order execution, and strong options chain tools. If you trade NSE F&O, commodity, or currency on Fyers, this guide shows you how to connect your account to CernoQuant for automatic journaling, NSE analytics, and Atlas AI coaching — without ever exporting a CSV.

Connecting Fyers via Fyers API v2

CernoQuant connects to your Fyers account using the official Fyers API v2 OAuth flow. This is a one-time authorization — after that, your trades sync automatically. Fyers API provides read-only access: CernoQuant can read your trades, but cannot place orders or access your funds.

Setup: Fyers → CernoQuant

1. 1

   Sign up for CernoQuant

   Free plan — no credit card required.

2. 2

   Go to Settings → Brokers → Fyers

   Select Fyers from the broker list in your CernoQuant dashboard.

3. 3

   Authorize via Fyers OAuth

   You'll be redirected to Fyers' official login page. Enter your Fyers Client ID and password, then approve read-only data access. No order permissions are requested.

4. 4

   Trades appear immediately

   Your complete Fyers trade history (F&O, equity, commodity, currency) syncs into CernoQuant with full analytics.

5. 5

   Automatic live sync

   New trades on Fyers appear in CernoQuant automatically — no manual refresh needed.

NSE F&O Analytics for Fyers Traders

Fyers supports NSE equity, NSE F&O, BSE equity, MCX commodity, and NSE currency. CernoQuant provides segment-specific analytics for each:

• F&O charge decomposition — Fyers shows brokerage clearly, but STT, exchange fees, and GST are lumped together. CernoQuant separates every charge per leg so you know your true net P&L.
• Options Greeks at entry — Every Fyers options trade gets Delta, Gamma, Theta, and Vega recorded at the time of entry. See which greek profiles actually perform in your trading style.
• Expiry-day performance — Fyers traders active on weekly and monthly expiries: CernoQuant separates expiry-day P&L from non-expiry so you can see if your expiry approach is actually profitable.
• Win rate by instrument — Are your Nifty trades profitable but BankNifty losing money? CernoQuant calculates win rate, expectancy, and profit factor per underlying instrument.
• Drawdown and equity curve — See your running equity curve across your complete Fyers history. Identify your worst drawdown periods and what you were trading during them.
• Atlas AI analysis — After sync, Atlas AI analyses your full Fyers history for tilt, revenge trading, time-of-day patterns, and expiry-day behavioural shifts.

Fyers vs Other Indian Brokers: Journal Comparison

CernoQuant is a trading journal and analytics platform. Not a SEBI-registered investment advisor. All analytics are for educational purposes only. Trading decisions are your sole responsibility.