Do I have to pay more to use Duplicity Linking?

Duplicity Linking is available starting with the Business plan.

Dropping your base file for full cross-project linking wouldn’t reduce how many keys you’re billed for. A linked key stays hidden from translators and automatically inherits its content from the source key, but Localazy still counts it as a source key against your plan, whether the link stays within one project or spans up to three additional ones. Keeping the base file avoids creating those extra managed keys in the first place, which is why it remains the more economical setup.

The Key Clustering feature, on the other hand, nests duplicate values from API-based sources, such as Figma, Strapi, or the Localazy API, under a single key within the same file, and those clustered keys don’t count against your total at all. It only works within one file, though, so it can’t replace linking duplicates across separate projects.