storybook-addon-fake-api/dist/esm/manager.js

This addon will send fake responses to the requests sent from your component

import { addons, types } from "@storybook/addons";
import { ADDON_ID, PANEL_ID } from "./models/constants";
import { APIPanel } from "./APIPanel";
addons.register(ADDON_ID, function () {
  addons.add(PANEL_ID, {
    type: types.PANEL,
    title: "Fake API",
    match: function match(_ref) {
      var viewMode = _ref.viewMode;
      return viewMode === "story";
    },
    render: APIPanel
  });
});