Can I switch from IPv6 to IPv4 later?

Yes — release your IPv6 allocation from the dashboard and provision an IPv4. You then update the whitelist entry at your broker.

IPv4 vs IPv6 Static IP for Trading APIs: Which Should You Buy?

IPv4 or IPv6 for broker API whitelisting? Compare cost, broker compatibility and reliability to choose the right dedicated static IP for your trading bot.

The short answer

If your broker's API portal accepts an IPv6 address in its whitelist field, IPv6 saves you money (₹99/month vs ₹200/month at Algo-IP) and performs identically. If the portal only validates IPv4 format — still true for several Indian brokers — you need IPv4. When in doubt, IPv4 is the safe default.

Why IPv4 costs more

The world ran out of fresh IPv4 addresses in 2011. Every IPv4 address is now a scarce, traded asset — datacenter providers lease them at a premium, and that cost flows into your plan. IPv6 space is effectively unlimited, so dedicated IPv6 addresses are cheap.

Broker compatibility snapshot

Zerodha Kite Connect: IPv4 universally accepted; IPv6 connectivity works but confirm portal validation.
Angel One SmartAPI: IPv4 recommended.
Fyers API v3: dual-stack friendly; IPv6 generally fine.
Dhan HQ API: IPv4 recommended.
mStock (Mirae Asset) Trading API: IPv4 recommended for whitelist entry.

Performance: no meaningful difference

Both our IPv4 and IPv6 allocations exit from the same Mumbai datacenter with the same low-millisecond latency to broker endpoints. Protocol version does not change order execution speed in any measurable way.

Recommendation

One broker, tight budget, broker accepts IPv6 → IPv6 Dedicated (₹99/month).
Maximum compatibility or multiple brokers → IPv4 Dedicated (₹200/month).
Serious multi-broker desk → Multi-Broker Dual Stack with both protocols.