Fee System https://book.starknet.io/ch03-01-02-fee-mechanism.html

data :

https://viewblock.io/starknet

https://www.oklink.com/starknet

https://goerli.voyager.online/

https://voyager.online/?lang=en&theme=dark

doc

https://twitter.com/Vickish11/status/1784607512857112755?s=19

https://docs.starknet.io/documentation/

https://book.starknet.io/title-page.html

starknet API: https://github.com/starkware-libs/starknet-specs/blob/master/api/starknet_api_openrpc.json

https://data.voyager.online/

https://rpc-request-builder.voyager.online/

faucet https://starknet-faucet.vercel.app/

https://blastapi.io/public-api/starknet

starkent forum

https://community.starknet.io/t/starknet-account-abstraction-model-part-1/781

https://community.starknet.io/t/starknet-account-abstraction-model-part-2/839

apiservice https://docs.starknet.io/documentation/tools/api-services/

https://community.starknet.io/t/transaction-v3-snip/98228