Payment Required for using it？

[wanghanruibaba]

Hello, brilam, thank you for contributing such an excellent API interface, but I encountered a problem when using it. requests.exceptions.HTTPError: 402 Client Error: Payment Required for url: https://api.remove.bg/v1.0/removebg. May I ask if I need to pay to call the interface? Thank you, I use the Python programming language to call the interface