Build an Angel One SmartAPI trading bot with your AI coding agent.

How SmartAPI access and login work

You add an app in the SmartAPI portal with a name, a redirect address and your static IPs. The portal allows up to 5 apps per account. The documented login takes your client code, account PIN and a TOTP code from an authenticator app.

Tokens end at midnight; the docs do not state a time zone, so the kit assumes IST. Scripted login is allowed for your own account, so the bot can sign in at start and after midnight. Keep the PIN and TOTP seed in a secret store, never in the repository or chat.

Static IP for Angel One algo trading

From 1 April 2026, Angel One accepts orders only from your registered primary static IP, with an optional secondary. Only place, modify and cancel calls are checked; other calls do not need it. The mapping may change once per calendar week, and one IP serves one client except within a family.

Staff said in September 2025 that only IPv4 was supported; IPv6 today is not confirmed. The kit's advice is to force IPv4 for order calls. Run the bot at home only if your provider gives that line a static IP, or rent a server. Backtests and paper trading send no orders, so they need no static IP.

Can you paper trade with Angel One SmartAPI?

Angel One documents no sandbox or paper environment, so the kit treats it as none. Super Algo Kit uses its own paper broker over live data and sends no orders to Angel One. Paper first, live only when you say.

SmartAPI limits and costs to plan for

These are the documented SmartAPI numbers as the kit read them on 30 September 2026. Confirm any single-source limit before your code depends on it.

• Place, modify and cancel together: 9 a second, 500 a minute, 1,000 an hour.
• The budget is per client code, so several apps share it.
• Up to 10 orders a second per exchange and segment needs no algo registration.
• Market and IOC orders are prohibited for algos, per Angel One's 2026 notice.
• Historical candles: 3 requests a second. Quotes: 50 symbols per request.
• The APIs are described as free of cost; other charges are not confirmed.

What Super Algo Kit does with SmartAPI

The kit writes a thin client from its Angel One card instead of copying the official Python SDK. That SDK declares no licence and was last updated on 27 May 2025, before the 2026 rules.

• Waits in a clear state after the midnight logout until sign-in succeeds.
• Treats an access-denied reply as a rate limit when its text matches, not a login failure.
• After a timeout, checks the order book by tag before any resend.
• Avoids market orders and checks your outgoing IP matches the registered one.
• Caps order messages at 5 to 8 a second, the kit's own setting.
• Adds an independent risk gate and a kill switch you can run yourself.