[aioratings](https://aioratings.com/) has a free plan and a pro plan.

The free plan provides IMDb and Rotten Tomatoes ratings, while the pro plan also provides ratings from Metacritic and Roger Ebert.

Currently, aioratings only has its own [Stremio aioratings addon](https://stremio.aioratings.com/) that supports it.

To use aioratings, you will need to sign up for an account on their website and obtain an API key.

Once you have the API key, you can input it into the configuration page of the aioratings addon.

Related links:

- [Reddit: aioratings announcement](https://www.reddit.com/r/StremioAddons/comments/1ggukbu/update_aioratingscom_a_free_ratings_on_posters/)
