Top mods / [Let's Do] API
Not listed
[Let's Do] API doesn't list Minecraft 26.3 on Modrinth. The newest release it lists is 1.20.2, on Fabric, Forge, NeoForge, Quilt.
Its Modrinth project is marked archived.
Open [Let's Do] API on Modrinth
This is what the mod's author listed on Modrinth, not a test. A listing doesn't prove a mod runs on your setup, and a missing listing doesn't prove it fails. Versions must match exactly, and files published elsewhere, such as CurseForge, aren't counted.