Bump.sh vs Docusaurus

Bump.sh is a hosted API documentation platform built by a small, fully remote French team led by CEO Sébastien Charrier. It takes OpenAPI and AsyncAPI definitions from your repository, turns them into fast reference docs, and diffs every new version so breaking changes are flagged and a changelog is generated automatically. It is docs-as-code for teams that treat the API contract as the source of truth.

Every commit or pull request can deploy or preview docs through the CLI or GitHub Action, and API hubs group many APIs into one portal with a custom domain. Pro adds branch management, an API Explorer, release rollback and the automatic changelog. There is no free plan: Basic costs $50 per month for 10 API docs, Pro $120 per month for 30 docs with a 14-day trial, and Custom adds SSO, embed mode and a 99.99% SLA. Open source projects can request free Pro access.

Bump.sh suits platform teams publishing many internal or public APIs, especially event-driven ones, since AsyncAPI support is first class. It is weaker for long guides and marketing-style portals. ReadMe and Mintlify are stronger for narrative docs, Redocly offers similar OpenAPI tooling with more linting and self-hosting, and Stoplight focuses on design-first editing.

The biggest recent change is its new managed MCP platform: Bump.sh generates and hosts MCP servers from API definitions and Arazzo workflow files, with auth and observability, so AI agents can call your API safely. Note that Basic includes only five MCP tools.

Docusaurus is an open-source static site generator for documentation, created and maintained by Meta's open-source team and released under the MIT license. You write pages in Markdown or MDX, which lets you embed React components inside docs, and Docusaurus builds a fast static website with navigation, sidebars, a blog and search that you can host on GitHub Pages, Netlify, Vercel or any static host.

Key features are document versioning, so each product release keeps its own docs, built-in internationalisation for translated sites, a plugin system, swizzling to override theme components, and Algolia DocSearch integration, which is free for qualifying open-source projects. Version 3 moved to MDX 3 and React 18. There is no paid tier: the real cost is the developer time needed to set up, design, host and maintain the site. It powers documentation for projects such as React Native, Jest and Redux.

Docusaurus fits engineering teams and open-source projects that want docs-as-code in Git with full control over design. It is weaker for non-technical writers, who must edit Markdown files and open pull requests, and it lacks hosted analytics, AI answers and a visual editor. GitBook and Mintlify are hosted alternatives with visual editing and AI features, MkDocs with the Material theme is the Python-world equivalent, and Starlight from Astro and Nextra are newer static options.