Arduino SDK - C++ API

Official gRPC-HTTP endpoints

Network	Secure	Endpoint	Port
Mainnet	Yes	https://json.mainnet.iotex.io/	443
Testnet	Yes	https://json.testnet.iotex.io/	443
Mainnet	No	http://json.mainnet.iotex.io/	80
Testnet	No	http://json.testnet.iotex.io/	80

The full API reference can be found here 👇

IoTeX client: IoTeX Blockchain Client for Embedded systems