Bump.sh vs Redocly

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.

Redocly is an API documentation company built around Redoc, the popular open-source tool that renders OpenAPI definitions as clean three-panel reference documentation. It offers both open-source tools and commercial products for teams that treat their API description as the source of truth.

The free Redocly CLI lints OpenAPI files against configurable rules, bundles and splits multi-file specs and previews docs locally, which makes it a common choice for API governance in CI pipelines. Commercial plans add hosted API reference docs with a try-it console, developer portals that combine Markdown guides with references, versioning, access control and analytics, plus workflows for reviewing API changes. The CLI is free and open source, while hosted plans are priced per seat: Pro for hosted docs, Enterprise with SSO, RBAC and AI search, and a custom Enterprise+ tier, with a 30-day free trial.

Redocly suits API teams that already maintain OpenAPI specs and want accurate references and consistent style rules. Building a polished, marketing-style portal takes more customization effort than in some newer tools, and portal features require paid plans. Mintlify and ReadMe are more design- and product-oriented documentation platforms, Stoplight focuses on API design tooling, and Swagger UI is the basic open-source alternative.