Developer Tools
Scalar
API Documentation, SDKs, API Client & Registry
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Domain Rating by Ahrefs, checked 3 Oct 2026, changed 3 Oct 2026.
What it does
Create beautiful docs, SDKs and secure MCP servers from your API. Scalar keeps every interface in sync as your API evolves.
Straight answers
How do you measure SDK size?
SDK size is measured by the number of endpoints in your OpenAPI document — every method and path pair counts as one endpoint, so GET /planets and POST /planets are two endpoints. Free covers SDKs up to 25 endpoints, Pro includes 100, Business includes 250, and Enterprise is sized to your API.
What counts as one SDK?
One language target for one API. A TypeScript SDK and a Python SDK for the same API are two SDKs. Every plan includes one SDK in any supported language. Additional SDKs cost $150 per month each for up to 100 endpoints or $600 per month each for 101–250 endpoints, based on each SDK's size.
What happens when my SDK grows past the included endpoints?
Nothing breaks. Move up a plan when your SDK outgrows the included endpoints, or get in touch and they will size it to your API. Docs and MCP servers are not metered by SDK size.
Can I pay yearly?
Yes. Paying yearly gives you two months free — Pro works out to $125 per month ($1,500 per year) and Business to $500 per month ($6,000 per year).
How do volume discounts work?
Pricing steps down as you add SDKs, endpoints, or APIs on Business and Enterprise. If you are shipping several languages or a large API, book a demo and they will put together the right setup.
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