Make it possible to add ANTHROPIC and GEMINI API to TM Custom for the design of custom models

With TM Custom we are unable to add custom models based on ANTHROPIC because the API is not accepted (only "GPI-like" APIs can currently be added). Would you be so kind and a add the possibility to add ANTHROPIC API (and possibly GEMINI API ?) so we can add add custom models based on ANT and GEMINI with TM CUSTOM? Thanks