currencies – Which crypto wallets and fee gateways are most secure and authorized to make use of in India?

I’m creating an software, the place –

1. I would like finish customers to pay for the companies to make use of my software. I need to permit customers to pay in cryptocurrency (BTC and ETH initially), therefore I would like some kind of crypto fee gateway similar to we’ve conventional fee gateways accepting bank cards, internet banking, and so forth.
2. There could be some kind of reward system within the software, the place customers can earn rewards and redeem them in cryptocurrency again of their respective wallets. For this I would like some kind of APIs offered by my pockets the place I retailer my cryptocurrency, to ship the cash from my pockets to the person’s pockets’s deposit tackle.

As per the above two flows, my understanding is that I would want 2 issues –

1. Crypto fee gateway
2. Pockets APIs

Which crypto fee gateways and pockets APIs are authorized and safe for use in India as of 2024?