Which broker APIs answer on IPv6

Orders reach an IPv6 endpoint. The order-update socket is IPv4 only, which is fine: the socket carries no orders and is not IP-restricted, so it leaves from the shared address.

Answers on IPv6 for both orders and streaming.

IPv4 only, on both hosts. An Angel One account needs an IPv4 address.

Orders reach an IPv6 endpoint, so an Upstox account is issued an IPv6 address. Upstox checks the address every order arrives from, so it has to be added to your Upstox app before anything can be placed.

Everything Dhan publishes answers over IPv6, and it states in its own documentation that the static-IP whitelist takes an IPv6 address as well as an IPv4 one. Confirmed by connecting rather than by a DNS lookup: api.dhan.co answered DH-901 over a v6 socket on 22 August 2026. Note the whitelist applies to placing, changing and cancelling orders only; reading your order book is exempt.

IPv4 for now. Every Kotak host answers over IPv6 (the login endpoint answered over a v6 socket on 23 August 2026), but Kotak's own static IP page, last read on 1 November 2026, says IPv4 is currently supported and that IPv6 platform support will be available soon, and QuantGrid has not yet seen a Kotak account register an IPv6 address in the Neo console. Until that has been shown to work, a Kotak account is issued an IPv4 address. Note Kotak lists elsewhere as api.kotaksecurities.com, which resolves to nothing at all; the Neo gateway host named here is the one that answers. Two things are particular to Kotak: it ties each session to the address that created it, so after you change the registered address QuantGrid has to sign in again before orders are accepted, and the address can only be changed once every seven days.

Orders reach an IPv6 endpoint, so a Groww account is issued an IPv6 address to register in Groww's static IP setting. Groww's live feed host, socket-api.groww.in, also published an IPv6 (AAAA) record when we checked it on 24 October 2026.

IPv4 only. A Motilal Oswal account needs an IPv4 address, and Motilal additionally checks the address each order arrives from.

IPv4 only, and the plainest case here: api.tradejini.com publishes no IPv6 address at all, so there is nothing for an IPv6 address to connect to. A Tradejini account needs an IPv4 address. Checked on 27 August 2026.

Orders reach an IPv6 endpoint, so either address family works. Confirmed by connecting rather than by a DNS lookup: api.iiflcapital.com answered over a real IPv6 socket with IIFL's own response on 4 September 2026. Note its market-data host publishes no IPv6 address, which does not matter here because QuantGrid reads IIFL by polling rather than over that feed.

IPv4 only, and for an unusual reason: Nuvama's order endpoint does answer over IPv6, but their console will not accept an IPv6 address in the registered-IP form, and Nuvama checks the address every request arrives from. An address you cannot register cannot place an order, whichever way it resolves. Confirmed with a live account on 22 August 2026.

Orders reach an IPv6 endpoint. The separate feed host is IPv4 only, which does not matter: no order goes to it. ICICI requires the address orders arrive from to be registered with them, so register the IPv6 address QuantGrid issues for the account.