Sourced*

Migration

Migrate from GitBook API docs to Sourced

· 3 min read · Sourced

  • gitbook
  • migration
  • api-docs
  • openapi
  • sdk

GitBook is a broad product-docs and knowledge platform. It is very good when teams need a visual editor, product guides, internal knowledge, Git sync, AI search, and stakeholder-friendly collaboration. Sourced is narrower: API reference, SDK previews, agent-readable docs, package readiness, and production launch checks from OpenAPI.

Migrating GitBook API docs to Sourced makes sense when the API reference and SDK workflow have outgrown a general docs tool. If you are looking for a GitBook API docs alternative, make sure the replacement is for API-contract work, not all company knowledge.

Decide what should move

Move to Sourced:

  • OpenAPI reference pages
  • SDK install guides tied to generated packages
  • auth examples generated from the spec
  • llms.txt
  • MCP starter or skill-file output
  • npm/PyPI readiness
  • custom-domain API docs review and cutover

Keep in GitBook or another docs CMS:

  • product concepts
  • help-center articles
  • release notes that are not API-specific
  • onboarding guides with heavy editorial structure
  • internal knowledge pages

The best setup may be hybrid: GitBook for broad product docs, Sourced for API reference and SDK release workflow.

Inventory GitBook before switching

Collect:

  • GitBook space/site URL
  • Git sync repository and branch
  • OpenAPI blocks or API reference source files
  • guide pages and reusable snippets
  • custom domain
  • redirects
  • theme settings
  • analytics/search data
  • public pages that rank in Google
  • SDK examples and package links

As of August 31, 2026, GitBook's official pricing has a free plan and paid site plans that add a per-site and per-user layer. That can be reasonable for product docs. Sourced's pricing is built around API projects: free previews and review sites, then $99/month per API project for Launch.

Scale is $349/month and adds more API projects, more hosted docs sites, more team capacity, and production custom domains.

Migration workflow

  1. Export or locate the canonical OpenAPI spec.
  2. Upload it to Sourced and generate docs.
  3. Compare operation coverage against the GitBook API reference.
  4. Generate TypeScript and Python SDK previews.
  5. Move SDK install snippets to the generated package READMEs and docs quickstart.
  6. Keep product guides in GitBook unless they are API-contract pages.
  7. Create redirects from old API docs URLs to Sourced docs URLs.
  8. Keep preview docs noindex.
  9. Cut over the production API docs domain only after search and route QA.

Hard part: product docs split

GitBook usually holds more than API reference. The painful part is not exporting Markdown; it is deciding what should stop living next to the API contract. Keep product concepts and internal docs where editors already work. Move OpenAPI reference, SDK install guides, auth examples, llms.txt, and package-release surfaces into Sourced.

Search traffic checklist

Before cutover, identify:

  • top landing pages from Google Search Console
  • pages with backlinks
  • pages with SDK install snippets
  • pages linked from product onboarding
  • pages used in support macros
  • llms.txt or agent-readable entry points

Do not migrate by copying everything. Migrate API-contract pages and redirect the rest thoughtfully.

Prompt for an AI agent

Migrate our GitBook API docs to Sourced.
Inventory GitBook space/site, Git sync repo, OpenAPI blocks, API reference pages, guide pages, custom domain, redirects, theme, analytics/search, llms.txt, and SDK examples.
Generate Sourced docs, TypeScript SDK, Python SDK, llms.txt, MCP/skill outputs if useful, and npm/PyPI readiness from the canonical OpenAPI file.
Compare endpoint coverage, docs URLs, examples, package names, auth setup, sitemap, and noindex/index behavior.
Keep non-API product docs in GitBook unless I ask to move them. Do not change DNS or publish packages without explicit approval.

Bottom line

Migrate GitBook API docs to Sourced when API reference and SDK release work need their own system. Keep GitBook for product knowledge. The cleanest developer experience is often a split: Sourced for contract-driven API surfaces, GitBook for everything editorial.

Start free, compare GitBook alternatives, or read about free OpenAPI docs hosting before custom-domain launch.