Migrate off Stainless Read more

Make APIs agents will love with best in class Docs, SDKs & MCP Servers

Docs

The modern documentation platform for your API and everything else, in sync with your Git repo

“Scalar's flexibility—particularly its strong support for OpenAPI standards—positioned us to move faster and innovate with greater confidence.” Josh Schoonmaker, SVP of Product
SDK Generation

Type-safe SDKs in six languages, generated from your OpenAPI document and updated in one commit

“The best part has been how little I think about SDKs. A few clicks set up every language to parity with what we had, with no breaking changes — which was huge for us.” Adam Rankin, CTO
MCP & Agent

A hosted MCP server so any agent can call your API securely, without eating its context window



Marc from Scalar here,


There's no better feeling than building and being enabled by the software you are integrating with.


We've all experienced friction with out-of-date docs, no client SDKs in your favorite language, and no one to talk to about your struggles on-boarding.


But we've also experienced those magical APIs that just work with everything you need right there. This drives our simple three tenants at Scalar: Accessibility, Open-Source, and API First. Making on-boarding easier and magical enables people to build, and being API first means your business can scale for the future (LLMs).


Why Open-Source? If done right, it’s transparent, builds industry standards (OpenAPI), accelerates innovation, and fosters collaboration. We love Open-Source and keep it core to our values.


We are fans of “show don't tell here” at Scalar: so try our Docs (this page), our SDKs for our API that includes our API Client, Agent to chat with APIs, and our GitHub for all our open-source products. As always, we love your feedback so drop us a line in our discord, email, or book a call with me to see how we can help.



Marc Laventure
CEO, Scalar
L O V E S

What are you waiting for?

We're committed to enabling developers and companies to practice the highest of API industry standards.

Community → GitHub → Contact Us →
API Docs Preview API Docs Preview
API Docs
Write beautiful documentation with Markdown, MDX, OpenAPI, AsyncAPI, and two-way Git sync.
Learn More
SDKs Preview SDKs Preview
SDKs
Bring your OpenAPI document and get type-safe client libraries for TypeScript, Python and more.
Learn More
API Registry Preview API Registry Preview
API Registry
Managing & versioning OpenAPI Documents with a deep Git integration.
Learn More
MCP & Agent Preview MCP & Agent Preview
MCP & Agent
OpenAPI-backed MCP servers and SDKs that connect your APIs to LLMs with just-in-time tools and delegated authentication.
Learn More