If you use algo trading tools in India, the broker API connects your strategy to the market. How fast and stable that connection is β that decides how well your trades work.
We support three brokers β , , and β across all Bluechip Algo tools. Here's a simple comparison to help you pick the right one.
Overview: three brokers, three approaches
| Feature | () | () | ( API) |
|---|---|---|---|
| API type | REST + WebSocket | REST + WebSocket | REST + WebSocket |
| Authentication | TOTP-based | OAuth 2.0 | Access token |
| Order rate limit | 10 orders/sec | 10 orders/sec | 20 orders/sec |
| WebSocket feeds | LTP, OHLC, full depth | LTP, OHLC, depth | LTP, OHLC, full depth, OI |
| Historical data | Yes (candle data) | Yes (candle data) | Yes (tick + candle) |
| Documentation | Good | Moderate | Excellent |
| SDKs | Python, Node.js | Python | Python, Java, JS |
is India's biggest retail broker. Their is well-tested and easy to understand. It works well for most traders.
Strengths
- Very stable β Works well even on busy expiry days
- Big community β Lots of tutorials and code examples online
- TOTP authentication β Safe two-factor login. You can automate it with pyotp
- Good order types β Market, limit, SL, SL-M, AMO, and bracket orders all work
Limitations
- Only 10 orders/second β can be slow for multi-leg strategies
- If WebSocket drops, you need to login again
- Historical data API has daily limits on how much you can fetch
Best for
Beginners and traders who scalp one instrument at a time. If you use Trade Scalper for NIFTY/BANKNIFTY scalping, is a safe pick.
is a discount broker built for algo traders. Their API is strong and made for developers.
Strengths
- Strong API β Many order types and good tools for running strategies
- OAuth 2.0 auth β Standard login flow, simple to set up
- Low cost β Just βΉ20 per order in all segments
- Works great for bots β Steady order execution for Trade Bots style automation
Limitations
- Smaller community than or
- Some parts of the API docs could be clearer
- WebSocket depth data only goes to 5 levels
Best for
Traders who want strong API features at low cost. Great for running Trade Bots strategies that need to run on their own.
API
is the newest of the three. But it has quickly become a top choice for algo traders. The API is modern and built for developers first.
Strengths
- 20 orders/second β That's 2x faster than and . Very important for multi-leg trades
- Best documentation β Clear docs with code examples in many languages
- Full market depth + OI data β WebSocket feeds show open interest too. Useful for options
- Clean API design β Simple endpoints, clear error messages, easy to work with
- Tick-level historical data β Get data down to 1-second for backtesting
Limitations
- Newer platform β fewer users than
- Some order types like bracket orders have limits
Best for
Traders who run multi-leg strategies, developers who build their own tools, and anyone who wants fast API and clear docs. Great for Trade Bridge signal execution where speed matters.
API authentication: a simple comparison
Login setup is where most beginners get stuck. Here's how each broker does it:
- Get your API key from the dashboard
- Login with client ID + password + TOTP
- You get a JWT token that works for the whole trading day
- You can create the TOTP in code using your TOTP secret
- Register an app on the developer portal
- User logs in on the page (OAuth flow)
- You get a code, then trade it for an access token
- Token works for the full trading day
- Get your access token from the developer console
- Send client ID + access token with your API calls
- Easiest login of all three β no TOTP or OAuth needed
All Bluechip Algo tools handle login for you. Just enter your API details once. The tool takes care of login, token refresh, and sessions.
WebSocket data feeds compared
Live market data is a must for any real-time algo strategy. All three brokers give you WebSocket feeds, but there are some differences:
| Data type | |||
|---|---|---|---|
| LTP (Last Traded Price) | Yes | Yes | Yes |
| OHLC | Yes | Yes | Yes |
| Market depth (levels) | 20 | 5 | 20 |
| Open Interest | Yes | Yes | Yes (real-time) |
| Max subscriptions | ~3,000 | ~1,000 | ~5,000 |
| Reconnect handling | Manual re-auth | Auto-reconnect | Auto-reconnect |
Which broker should you choose?
It depends on how you trade:
- New to algo trading? β Start with . Biggest community, most help available
- Running automated bots? β or . Both run well on their own without you watching
- Multi-leg strategies + fast trading? β . 20 orders/sec and great docs make it the best fit
- Want all of the above? β Open accounts with all three. Many pro traders use multiple brokers as backup
No matter which broker you pick, all Bluechip Algo tools β Trade Scalper, Trade Disc, Trade Bots, and Trade Bridge β work with all three.