Octri vs Stainless

Stainless announced on 18 May 2026 that it is winding down its hosted products, including the SDK generator, and that new signups, projects and SDKs are no longer available. It has not published an end date. The code you already have keeps working; what changes is that your next API change needs a generator to carry it into every SDK.

Octri reads stainless.yml beside your spec. Each target becomes an SDK language, your package name and production repository come across, resource grouping becomes tag-based namespacing, and names set with x-stainless-method-name carry over per endpoint. From then on every merged spec change regenerates your SDKs and lands in their repositories as a pull request.

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. An optional test suite and an optional CLI with a subcommand per endpoint are generated alongside, on every plan.

SDK Studio replaces the stainless.yml editing loop: 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. Custom code arrives on Growth, kept through each regeneration by a normal merge in a repository you own. The Free plan includes one language, Starter 2, Growth 4 and Business all ten.

Stainless leads on three things, and they are in the table: C#, WebSockets and Terraform providers. If one of them is in your SDKs today, keep that target where it is while the rest move.

Octri writes a reference page for every endpoint: 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, with a live playground beside it, and every spec change becomes a dated changelog entry with breaking changes flagged.

Guides are MDX in a visual editor on the published page, with full-text search, an ask-the-docs chat, llms.txt and a markdown copy of every page for coding agents, password protection and PDF export, all on every plan and on your own domain.

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.

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.

Your API is watched too. 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.