Bump.sh
Hosted API docs, changelogs and MCP servers from OpenAPI and AsyncAPI
Bump.sh is a aPI & developer docs tool for Developers and Small businesses, offered as paid ($50/mo). Founded in France in .
About Bump.sh
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.
Key features of Bump.sh
- Reference docs generated from OpenAPI, AsyncAPI and Arazzo definitions
- Automatic diff that flags breaking changes before they go live
- Auto-generated API changelog with notifications for subscribers
- Doc previews on every pull request through CLI or GitHub Action
- API hubs that group many APIs under one custom-domain portal
- API Explorer for sending test requests on the Pro plan
- Hosted or on-premise MCP servers generated from API and workflow definitions
- Public or private docs with guest access and SSO on Custom
Pros and cons
Pros
- Breaking-change detection and changelogs need no manual writing
- First-class AsyncAPI support for event-driven and Kafka-style APIs
- Fits cleanly into CI so docs never drift from the spec
- Fast, clean reference layout that handles very large specs
- Free Pro access available for open source projects
Cons
- No free plan for commercial teams, entry price is $50 per month
- Doc counts are capped per plan, 10 on Basic and 30 on Pro
- Limited support for long-form guides compared with ReadMe or Mintlify
- Branches and API Explorer require the Pro plan
- Small vendor, so enterprise procurement may need extra diligence
Bump.sh pricing
Bump.sh uses a paid model. A 14-day free trial is available.
| Plan | Price | Includes |
|---|---|---|
| Basic | $50 / mo | 10 API docs, 3 internal users, 20 guests, 5 MCP tools |
| Pro | $120 / mo | 30 docs, 5 users, branches, API Explorer, changelog |
| Custom | Custom | SSO, embed mode, on-prem MCP dataplane, 99.99% SLA |
Source: bump.sh · checked on Oct 20, 2026
How Bump.sh compares in API & developer docs
- Rank by votes
- #2 / 16
- Starting price
- $50
- Free alternatives
- 4
0 votes from members
33% above the category median ($38/mo)
Free or open-source tools in API & developer docs
Bump.sh ranks #2 of 16 api & developer docs tools by community votes and is priced above most tools in the category.
Common use cases
- 1Publishing a public API reference that updates on every merge
- 2Warning API consumers about breaking changes through an automatic changelog
- 3Running an internal API catalog for dozens of microservices
- 4Documenting Kafka or webhook events with AsyncAPI
- 5Exposing an API to AI agents through a hosted MCP server
Best for
API and platform teams that keep OpenAPI or AsyncAPI specs in Git and want docs, breaking-change alerts and changelogs generated on every deploy.
Not ideal for
Teams that need a marketing-style developer portal with long tutorials and guides (ReadMe, Mintlify).
Integrations
- GitHub Actions
- Bump.sh CLI
- OpenAPI
- AsyncAPI
- Arazzo
- MCP clients (Claude, Cursor)
Our take
Bump.sh is one of the cleanest ways to keep API reference docs and changelogs in sync with the spec, and its AsyncAPI and MCP support set it apart. Pick it for spec-driven teams; pair it with a separate docs site if you also need extensive guides.
FAQ
- What is Bump.sh?
- Bump.sh is a API & developer docs tool: Hosted API docs, changelogs and MCP servers from OpenAPI and AsyncAPI.
- How much does Bump.sh cost?
- Bump.sh uses a Paid model; paid plans start at $50 per month.
- Does Bump.sh have a free trial?
- Yes, Bump.sh offers a 14-day free trial.
- What does Bump.sh integrate with?
- Bump.sh integrates with GitHub Actions, Bump.sh CLI, OpenAPI, AsyncAPI, Arazzo, MCP clients (Claude, Cursor) and more.
- Which platforms does Bump.sh support?
- Bump.sh is available on web.
- Who is Bump.sh for?
- API and platform teams that keep OpenAPI or AsyncAPI specs in Git and want docs, breaking-change alerts and changelogs generated on every deploy.
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