librechat-custom/assets/custom.js

// Auto‑load saved image generation API key into the MCP input field
window.addEventListener('load', () => {
  const savedKey = localStorage.getItem('image_api_key');
  if (savedKey) {
    const icInput = document.querySelector('input[name="IC_API_KEY"]');
    if (icInput) icInput.value = savedKey;
  }
});