The substrate-api-client is a Rust-library for connecting to a substrate-based node via RPC. It is an alternative to subxt, which provides a similar functionality. RPC clients are needed in any software component, connecting to a substrate parachain. Therefore it is advisable, that there is more than one client available for Rust developers. Apart from that, the substrate-api-client fills a gap, providing the possibility to create extrinsics in a no_std-environment. Thereby facilitating extrinsic creation from within trusted hardware (like Intel sgx). This has a big potential for further usage in IoT environments. Last but not least, the substrate-api-client has an easy-to-use interface and comes with many practical examples, which makes it a good option for new developers.  

This proposal aims to fund: 

1. maintenance and support for the substrate api client over 3 months (Nov-22 until Jan-23). 
2. evaluation and design of two new features: 
   - CLI-wallet implementation
   - full no_std-compatibility 

See our [full proposal](https://docs.google.com/document/d/1hJzzmimz_pjK-_4TunKvs-i2Zot2_9Ob3qUr7BlzaNo/edit?usp=sharing) for the details.



- Substrate-api-client is a library for connecting to a substrate-based node.
- It is an alternative to subxt and helps connect to a substrate parachain.
- It can create extrinsics in a special environment called no_std.
- It can be used in IoT environments.
- The proposal aims to fund maintenance, support, and new features for the substrate-api-client.

#1923 Treasury Proposal: Maintenance for the substrate-api-client Nov-22 to Jan-23