What is the common blockchain API?

There are many common blockchain APIs, including but not limited to the following:

1. Wallet API: Used to manage digital currency wallets, including functions such as creating wallets, obtaining balances, and sending and receiving digital currencies.

2. Smart Contract API: Used to create and manage smart contracts, including contract deployment, invocation, querying, and deletion functions.

3. Blockchain Node API: Used to manage blockchain nodes, including functions such as obtaining blockchain information, synchronizing blockchain data, and adding new blocks.

4. Identity verification API: used to verify the user's identity, including functions such as registration, login, logout, and password reset.

5. Data Storage API: Used to store and access data on the blockchain, including functions such as uploading, downloading, querying, and deleting data.

It should be noted that different blockchain platforms may have different APIs, so when using APIs, it is necessary to choose the appropriate one based on the specific situation. In addition, the security of APIs is also an issue that needs to be taken seriously. Developers need to take appropriate security measures on APIs to ensure the security of users' digital assets.