Octri vs GitBook
Both publish API docs from an OpenAPI file. Octri writes the reference for you, generates SDKs in ten languages, hosts an MCP server that calls your API, and watches it after every release.
Written by Octri · Checked 23 October 2026
Summary
- Octri ahead
- 20
- Level
- 6
- GitBook ahead
- 2
$0
for private API docs on your own domain with AI chat and analytics on Octri’s Free plan. GitBook starts private docs on Ultimate, at $249 per site a month.
4 in 1
Docs, SDKs, an MCP server and monitoring on one subscription, at no extra cost.
Octri writes your API reference from the spec: every field explained, every error documented with its cause and fix, the call through your own SDK on every page, and a changelog that updates itself. A custom domain, MDX guides, password protection, AI chat, analytics and PDF export are on every plan.
The same plan generates SDKs in TypeScript, Python, Go, Java, Kotlin, Ruby, PHP, Rust, Swift and Dart and publishes every release, hosts an MCP server whose tools call your API, and keeps watching after release with error reporting inside every SDK, uptime checks, a status page, and logs and traces.
API docs, SDKs and monitoring, head to head
Octri against GitBook, 28 rows from each product’s own pages on 23 October 2026. Octri is ahead on 20, level on 6, and GitBook is ahead on 2.
| Feature | Octri | GitBook |
|---|---|---|
| API reference | ||
| Endpoint reference | All plans+ written for you, with errors by status | All plans |
| Interactive playground | All plans | All plans |
| Error guide per status code | All plans | Not available |
| API changelog | All plans+ written from every spec change | Written by hand |
| Spec formats | OpenAPI 3 and Swagger 2.0+ and Postman collections | OpenAPI 3 and Swagger 2.0 |
| Docs site | ||
| Guides in a visual editor | All plans | All plans |
| Two-way Git sync | All plans | All plans |
| Custom domain | All plans | Essential and up |
| Private docs | All plans | Ultimate and up |
| Docs analytics | All plans | Essential and up |
| PDF export for readers | All plans | Essential and up |
| Redirect rules | All plans | Essential and up |
| Versioned docs | Growth | Available |
| Translations | Not available | Paid plans, from AI credits |
| Content tailored per reader | Not available | Ultimate and up |
| SDKs | ||
| SDK languages | 10 | Not available |
| Built and published for you | All plans+ a pull request per regeneration | Not available |
| Shaping the SDK | All plans+ in SDK Studio, with a live code preview | Not available |
| Webhook helpers | All plans | Not available |
| AI and agents | ||
| MCP server | All plans+ a callable tool per endpoint | All plans, reads the docs |
| AI chat for readers | All plans | Essential and up |
| llms.txt and markdown pages for agents | All plans | All plans |
| Tool export | All plans+ MCP, OpenAI and Anthropic formats | Not available |
| After release | ||
| Scheduled checks on your API | All plans | Not available |
| Error reporting inside the SDK | All plans | Not available |
| Status page for your users | All plans+ with a docs banner | Not available |
| Logs and traces for your API | All plans | Not available |
| Team | ||
| Dashboard single sign-on | Enterprise | Enterprise |
Only on Octri
8 features you will not find in GitBook’s site or docs.
SDKs in ten languages
Generated, regenerated on every spec change and published for you, from TypeScript to Swift and Dart.
MCP tools that call your API
One callable tool per endpoint beside the docs tools, with the list exported for OpenAI and Anthropic too.
Error reporting inside every SDK
A failure in your users’ apps reaches you with the SDK version, language and method, tagged to the release.
A status page for your users
Incidents from your uptime checks publish to a status page on your own domain and a banner across your docs.
Logs and traces for your API
Follow one failing call from a user’s app into your handler, with latency targets per route.
A changelog that writes itself
Every spec change becomes a dated entry of endpoints added, removed and changed, with breaking changes flagged.
An error guide for every status code
Each endpoint lists the errors it can return, with what causes each one and how to fix it.
SDKs shaped in a studio
Client shape, method names and file layout per endpoint, with the generated code redrawn beside each change.
A reference that arrives already written
GitBook turns your spec into interactive blocks you place in your pages. Octri writes a reference page for every endpoint, then keeps it current as the spec changes.
Every endpoint gets a page with a description, every request and response field explained, and each error documented by status code with its cause and fix. Each page shows the call through your own SDK in every language you publish, with a playground beside it, and every spec change becomes a dated changelog entry with breaking changes flagged, without anyone writing it.
Guides are MDX in a visual editor on the published page, with Git sync, a custom domain, password protection, full-text search, an ask-the-docs chat, llms.txt and a markdown copy of every page for coding agents, docs analytics, PDF export and redirects for pages you retire, all on every plan, Free included.
Ten SDKs, built and published
Octri generates, regenerates and publishes SDKs in ten languages from the same spec as your docs.
Octri generates TypeScript, Python, Go, Java, Kotlin, Ruby, PHP, Rust, Swift and Dart. Every client comes with typed models and typed errors, auth from your security schemes, retries with backoff, pagination, idempotency, server-sent events, multipart uploads and webhook signature checks, and lands in its repository as a pull request on every merged spec change, ready to publish to its registry.
SDK Studio sets client shape, method names and file layout for the whole project, one language or a single endpoint, with the generated code redrawn beside each change. The Free plan includes one language, Starter 2, Growth 4 and Business all ten, and the docs show each endpoint’s call through them.
An MCP server that calls your API
GitBook’s MCP server gives agents read-only access to your published docs. Octri’s reads your docs and calls your API.
Octri’s MCP server has seven tools for reading your docs (search, one endpoint in full, the endpoint list, guides, the changelog, your SDKs and the call in your own SDK) and one callable tool per endpoint, which makes the real request. Endpoints you excluded from your SDK get no tool, so the SDK settings double as the agent’s permission list.
It runs locally over stdio with credentials kept on the developer’s machine, or as a shared SSE server for a team, and the tool list exports in MCP, OpenAI and Anthropic formats. Readers get an ask-the-docs chat on the site itself, from the Free plan up.
Monitoring from inside the SDK
GitBook’s analytics follow your readers. Octri also follows the API, and the clients calling it, after every release.
Every Octri SDK carries an error reporter. It ships switched off, and the developer who installs your SDK turns it on with one option. From then on a failure in their application reaches your project with the SDK version, the language, the method and the status, grouped into issues and tagged to the release that introduced it. Credentials and personal identifiers are redacted inside the SDK before anything is sent.
Uptime checks are generated from the endpoints in your spec, an incident publishes to a status page on your own domain and to a banner across your docs, and backend packages in ten languages add logs, traces and latency targets per route, on every plan.
- Alerts for new issues, regressions and thresholds, to Slack or any webhook
- No third-party observability vendor in the path; data stored in the United Kingdom
- Monitoring ingest is never cut off at the allowance, so a bad day’s errors still arrive
Docs and SDKs, one price
GitBook prices per site and per user, with AI on credits. Octri’s plans include docs, SDKs, the MCP server and monitoring, with every price on the page. Prices as published on 23 October 2026.
GitBook Essential
$65
per site a month billed yearly, plus $12 per user
- Custom domain, analytics and redirects
- AI answers for readers, from 2,000 AI credits
- Private docs and full AI chat on Ultimate
- No SDKs or monitoring
Octri Starter
$49
a month, or $41.65 billed yearly
- SDKs in 2 languages, 100 endpoints
- Docs site with guides, AI chat and analytics
- Hosted MCP server with docs and endpoint tools
- SDK errors, uptime checks, status page
Octri Business
$249
a month, or $211.65 billed yearly
- Everything in Starter
- SDKs in all ten languages
- Custom components, CSS and white-label docs
- 600 endpoints, SDKs on a CDN
Plan by plan
Octri’s yearly billing takes 15% off the base price. GitBook’s prices here are per site, billed yearly, with each user added on top.
| Plan | Octri | GitBook |
|---|---|---|
| Free | $0. Docs on your domain, one SDK language, 50 endpoints, MCP, monitoring, AI chat | $0. One user, interactive API docs, Git sync and an MCP server, on a GitBook address |
| First paid | Starter, $49 a month. Two SDK languages, 100 endpoints | Essential, $65 per site a month. Custom domain, analytics, redirects, AI answers |
| Middle | Growth, $79 a month. Four languages, 300 endpoints, versioning, custom code | Ultimate, $249 per site a month. Private docs, AI chat, tailored content, GitBook Agent |
| Upper | Business, $249 a month. All ten languages, 600 endpoints, white-label | Enterprise, by quote. SAML SSO, migration service, custom contract |
| Usage | Readers are never metered; monitoring past the plan’s allowance is $0.50 per GB | $12 a month per user; more AI credits in monthly packs |
What three common setups cost a month
GitBook’s column is per site with users added on top; Octri’s is the whole plan, monitoring included.
| Setup | Octri | GitBook |
|---|---|---|
| API docs on your own domain | Free, $0 | Essential, $65 per site plus $12 per user |
| Private API docs with AI chat | Free, $0 | Ultimate, $249 per site plus $12 per user |
| Docs plus TypeScript and Python SDKs, published for you | Starter, $49 | Not offered: GitBook has no SDK generation |
Moving from GitBook
The move starts from two things a GitBook site already has: the OpenAPI file its API blocks read, and the Markdown that Git Sync keeps in your repository.
How the move works
Stage 1
Bring the spec
You
Upload the OpenAPI file your GitBook API blocks read, or connect the repository it lives in.
Octri
Writes a reference page for every endpoint, with the playground, search and chat switched on.
Stage 2
Bring the guides
You
Paste the Markdown that Git Sync keeps in your repository, swapping
{% hint %}and{% tabs %}blocks for Octri’s Callout and Tabs as you go.Octri
Generates an SDK in each language you pick and shows the call through it on every endpoint page.
Stage 3
Go live
You
Copy your site redirects into octri.json, publish, then point your custom domain at Octri.
Octri
Regenerates docs, SDKs and MCP tools on every merged spec change, and starts the uptime checks.
Which should you choose?
Choose GitBook
Choose GitBook if one site has to hold a help center and internal docs beside your API, or your docs need translating into other languages.
Choose Octri
Choose Octri if you want API docs your readers can rely on from day one. Octri writes the reference from your spec, documents every error with its cause and fix, shows the call through your own SDK on every page, and keeps a changelog that updates itself, with AI chat, analytics, private docs and a custom domain on every plan, Free included.
Then comes the rest of the subscription. SDKs in ten languages built and published for you, a hosted MCP server whose tools call your API, error reporting inside every SDK, uptime checks with a status page and a docs banner, and logs and traces for your API, all at no extra cost.
Questions
GitBook renders an OpenAPI file into interactive API blocks and does not generate SDKs. Octri generates SDKs in ten languages from the same spec as your docs, regenerates them on every spec change and opens a pull request in each repository.
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Written by Octri, from each vendor's public pages and our own testing, checked 23 October 2026. Products change often, so confirm anything that matters to you on the vendor's own site. Product names are the trademarks of their owners, used here only to identify their products. Octri is not affiliated with or endorsed by any of them.
Spotted something out of date? Write to founders@octri.dev and we will correct it.
Try it on your own spec
Bring your OpenAPI file on the Free plan and see your reference written and your first SDK built.