If you want to use stable diffusion t2i and i2i today via an self-hosted api it's very easy to do so with auto1111, just click the api link at the bottom of the

If you want to use stable diffusion t2i and i2i today via an self-hosted api it's very easy to do so with auto1111, just click the api link at the bottom of the gradio app and there's extensive documentation on the endpoints.