Bump.sh
Hosted API documentation from OpenAPI and AsyncAPI specs, with automatic change tracking and semantic diffs.
About
Bump.sh turns OpenAPI and AsyncAPI definitions into hosted, searchable API documentation that stays in sync with the code. Connect a spec file through the CLI, GitHub integration, or CI pipeline, and every deploy diffs the new version against the old one, flagging breaking changes before they reach consumers. Docs live on a custom domain with your branding, and multiple APIs can be grouped into a hub.
Where Bump.sh stands apart is change management: automatic changelogs per release, branching for unreleased work, and rollback when something goes wrong. An API Explorer for trying endpoints live starts on the Pro plan, and the platform now compiles workflow definitions into hosted MCP servers so AI agents can use your API deterministically. Pricing starts at $50/month with no free tier, though open-source projects can apply for a free Pro plan. The CLI is MIT-licensed, but the documentation platform itself is closed source.
What it can do
- Hosted API docs generated from OpenAPI and AsyncAPI specs
- Semantic diff of every spec version with breaking-change alerts
- Automatic changelog per release plus branch previews and rollback
- API Explorer for live try-it requests (Pro plan and up)
- Hosted MCP servers generated from Flower or Arazzo workflow definitions
- Hubs to group multiple APIs under one custom domain
Setup
Install the Bump.sh CLI or GitHub Action, point it at your OpenAPI or AsyncAPI file, and publish on each deploy.
Prerequisites
Use cases
Works with
Trust score — 7/10
Scored 7/10 (verified tier, metrics-v1). Evidence: Sept 2026 third-party comparisons place Basic at $50/mo and Pro at $120/mo with a 14-day Pro trial and no free tier; customers named include MongoDB, Elastic, Lightspeed, and BigID. Strengths: automatic semantic diffs and changelogs per spec version, MCP server generation from workflow docs, MIT-licensed CLI. Docked for: (1) closed-source platform; (2) no free tier for commercial teams; (3) try-it console gated behind Pro. License: proprietary platform; CLI is MIT.
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 7.0/10
- Maintenance · recency, releases, issue load
- 8.0/10
- Openness · license + docs
- 5.0/10
- Manual review · sanity read + red-flag check
- 7.0/10
- · Strengths: automatic semantic diffs and changelogs per spec version, MCP server generation from workflow docs, MIT-licensed CLI
- · named customers include MongoDB, Elastic, Lightspeed, BigID; Sept 2026 pricing: Basic $50/mo, Pro $120/mo, 14-day trial, no free tier
- · Docked for: (1) closed-source platform; (2) no free tier for commercial teams; (3) try-it console gated behind Pro
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.