software development kit, client library or developer kit
An SDK, or software development kit, is a package of code libraries, documentation and tools developers use to build on a platform, such as calling an app's API from their own code.
An SDK, short for software development kit, is a ready-made toolkit for developers who want to build on a platform. It usually includes code libraries, examples and documentation.
Most SDKs wrap an app's API, so a developer can write one line of code instead of building every request by hand. There are SDKs for different programming languages, like Python or JavaScript.
SDKs are for people writing code. MCP is different: it lets AI assistants discover and use tools without anyone writing a custom integration for each one.
Most of my clients never touch an SDK, and that's the point of no-code tools like Zapier. Someone else has already done the integration work.
I only reach for code when there's a gap, like an app with no Zapier integration. Even then I keep it small, document it, and tell the client exactly what it does, so they're not stuck relying on something they can't see.
Most small businesses only ever need the last one.
An API is how an app lets other software talk to it. An SDK is a kit that makes it easier for developers to use that API in their own code.
If developers are building software, an SDK. If you want AI assistants to use your apps, MCP. Most small businesses need neither directly, because tools like Zapier handle it.
No. Zapier's integrations are already built. Developers use Zapier's own tools when they build a new integration for their app.
I set these up and train your team, in your own ClickUp or Zapier account.
Book a callContact Jack - jack@withtoki.co.uk