Affected by the Stainless acquisition? Migrate to Bloom here. Open migration path

Provider migration

Migrate from Fern to Bloom

Fern combines docs and SDKs, so the migration needs to preserve both the public docs site and the developer-facing SDK surface.

Checks

What to check

Fern-specific config needs to be separated from OpenAPI truth.

Generated SDK import paths and constructors need compatibility checks.

Docs routes, product switches, and versions need redirect coverage.

Custom React components or MDX need replacement components.

Checks

Migration checklist

Export source docs, OpenAPI files, theme settings, redirects, and custom domains.

Decide which content remains hand-authored and which references are generated.

Generate a preview before touching production DNS.

Run SDK and docs checks before publishing packages or indexing new pages.

Details

Why Bloom fits

Bloom is OpenAPI-first.

The migration report shows the SDK, docs, and launch work before anything goes live.

SDKs, docs preview, sitemap, and llms.txt live in the same workflow.

The dashboard shows what is generated, ready, and waiting on review.