scalar

Document, Discover and Test APIs with Scalar.

Community:
GitHub:

[scalar @scalar]

AsyncAPI support coming soon

drop the "open" it's cleaner

[scalar @scalar]

we made a huge mistake

yesterday scalar went closed source, we regret it deeply

we also didn’t realize it would remove our 15,000 stars

help us rebuild. please.

[scalar @scalar]

scalar is no longer open source.

sorry.

[scalar @scalar]

scalar is no longer open source.

sorry.

[scalar @scalar]

🆕 post-response scripts just are now live in scalar

run JavaScript after any request: pull values, write assertions, validate responses

[Marc Laventure @MarcLaventure]

scalar OSS just crossed 10MM monthly downloads

this is like a movie FR

[scalar @scalar]

we are re-designing Scalar; early preview but would love your thoughts

[scalar @scalar]

scalar 1.49.0+ has lazy loading 👏 dialed 👏 in

drastically reducing DOM elements by up to 81% in some cases

if you've ever had a massive OpenAPI document in scalar, you'll notice it's much faster now 😎

[scalar @scalar]

read more https://t.co/oUczI6uXQH

[scalar @scalar]

from OpenAPI → 3-tool MCP server in 30 seconds

give agents a full API in 1,000 tokens 😳

[scalar @scalar]

read more here: https://t.co/nYVefhmuq9

[scalar @scalar]

introducing our 🆕 Scalar Python & TypeScript SDKs

connect your APIs to any AI agent in 3 tools

OpenAPI-native, auth handled, and works with Vercel AI, OpenAI Agents, and Claude

[scalar @scalar]

read more about it or give it a try here:

https://t.co/rLXNHqWsCF

[scalar @scalar]

introducing agent scalar™

upload OpenAPI spec to scalar (free) → instantly get an MCP server that gives your agent the full API context in ~ 1000 tokens & just 3 tools

on average, that cuts native MCP context by 99%... 1/3

[scalar @scalar]

how does it work?

- we augment the openapi document
- do vector search to find the relevant operations and generate a scoped openapi document with just the servers/operations/schemas/auth we need

drastically reducing the context for an LLM (0.2% of your context window)... 2/3

[scalar @scalar]

@JThomasBurgess @FreckleBytes @mintlify thanks for pointing us to this, issue is resolved and we're working on improving our docs✨ all the best :)

[scalar @scalar]

@ndimares

[scalar @scalar]

pretty incredible what you can do with a few dozen lines of CSS nowadays

[scalar @scalar]

@DanielWhit21874 ;)

[scalar @scalar]

@dominikkoch @jordienr any feedback? :)