Right when I perfected my AI chatbot workflows, I found out all the cool kids had already migrated to building with AI coding agents. So I made the switch to vibe coding. And luckily for me, fellow vibe coders, and technical builders everywhere, Zapier SDK launched right on cue.
Zapier SDK is a resource that gives AI coding agents governed access to more than 9,000 pre-built app integrations in the Zapier directory. That means you can carry out more than 30,000 actions in your other tools without needing to build and maintain a separate integration for every app you want to do work in. Keep reading to learn what Zapier SDK does and how to equip your coding agents with it today.
Zapier SDK is in open beta, and billing is free during the open beta window. By default, Enterprise and Team plan accounts aren't included in this rollout. To submit feedback or other requests, contact the Zapier SDK team.
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A note on terminology: In this article, I distinguish between two types of AI tools, "AI chatbots" and "AI coding agents." These terms tend to get used loosely, so here's how I'm using them: AI chatbots are conversational with no coding capabilities, whereas AI coding agents can write and execute code.
What is Zapier SDK?
In case you're not a developer, let's take a beat to untangle the terminology. SDK stands for software development kit, and anyone can build one. It's a collection of pre-built resources like APIs, sample code, and debugging tools that make it easier to write code.
Zapier SDK is our flavor of that. It gives you connections to more than 9,000 apps in our ecosystem, so you can carry out actions in your other tools from your coding agent, or directly from a terminal and text editor. It also comes with authentication (verifying that your app has permission to access others), token refresh (auto-renewing those permissions before they expire), retries (re-running failed requests, so you don't have to), and error handling (catching and managing what goes wrong, so your script—the code you write to tell your agent what to do—doesn't just silently break).
Without something like the Zapier SDK, developers would have to wire up a separate API for every app they wanted their coding agent to work with. They'd also have to manually handle authentication: a process that takes time and could expose sensitive data or break integrations if anything's misconfigured.
And you know how AI chatbots and agents sometimes interpret the same prompt in different ways or shift in behavior over time? Zapier SDK nixes that. It makes sure your coding agent always executes your script exactly as written. For compliance-sensitive teams like HR, that consistency matters: offer letter generation, background check triggers, and I-9 initiations need to fire the same way every time, with no model drift.
On top of the standard integration catalog, Zapier SDK gives you raw API endpoint access to around 3,000 additional apps via Relay. So if you need to go beyond pre-built actions, that path is there for you.
If you're squinting at these words and thinking, I'm not technical enough for this! you'll find an easier entry point with Zapier MCP. It's our sister tool for connecting your AI chatbots like Claude and ChatGPT to other apps. The key difference is that there's no vibe coding (or coding of any sort, for that matter) involved with using Zapier MCP. The SDK, on the other hand, is better for developers, technical founders, or people who want to direct AI coding agents to write and run code for them, extending what their workflows can do. Still not sure which one you should use? Check out this guide, which breaks down the differences between Zapier MCP and Zapier SDK.
But just to be clear, for all you intrepid, non-technical builders out there, you don't need to know code to set up or use this tool.
Key features of Zapier SDK include:
More than 9,000 app integrations: Access Zapier's full app ecosystem from your code. And if you need to go beyond pre-built actions, Relay gives you raw API endpoint access to around 3,000 additional apps.
Note: Direct API calls via Relay aren't yet subject to org-level app and action restrictions.
Flexible logic: Write scripts with loops, conditionals, and error handling so your coding agent can make decisions, repeat tasks, and recover from failures without you babysitting it.
Built-in authentication: Zapier verifies your app's permission to access other apps automatically, so you never have to handle auth manually.
Built-in governance: Zapier acts as the safety and oversight layer across every standard API call, making sure your integrations stay within defined permissions and policies.
Type-safe actions: Full TypeScript support with generated types for every app and action gives you autocomplete and catches errors before runtime.
Automatic reliability: Zapier SDK handles token refresh, retries, and API differences across apps, so your code doesn't have to.
What you can do with Zapier SDK
Here are some ideas for putting Zapier SDK to work:
Wire up your tools in minutes, not days
You're a technical founder or startup operator who wants to connect your stack without learning a new tool or waiting on an engineer.
With Zapier SDK, you can use this prompt: "Connect our CRM to our billing tool. When a deal closes, create a new customer record and trigger the onboarding sequence." Zapier SDK will give your agent the connections to make that happen across your existing apps, no custom API work required.
Build auth into your AI product without building auth
You're a developer shipping an AI product and you need your users' apps to talk to each other. But building and maintaining auth infrastructure for every integration is a project in itself.
With Zapier SDK, you can use this prompt: "When a user connects their project management tool, automatically sync tasks to their calendar and send a Slack summary at the end of each day." The SDK handles the auth, token refresh, and API differences across every app.
Get your vibe-coded creations to actually do things
You're using AI to build for the first time, and you've got a solid start on a tool. The problem is it's running in a vacuum, disconnected from your other apps.
With Zapier SDK, you can use prompts like these:
"I built a morning briefing script. Make it pull from my email, calendar, and task manager and post a summary to Slack every day at 8 am."
"My project status dashboard captures updates but doesn't act on them. When the status of a project changes, automatically notify the right people in Slack."
"Hook up my content calendar so every time I add a new entry, it creates a draft in my CMS and adds a task to my project management tool."
Automate HR workflows without exposing sensitive data
You're in HR and you want to automate recruiting pipelines, onboarding workflows, and employee data syncs. But your data is too sensitive to hand off without guardrails. Zapier SDK runs inside Zapier's governance layer, so your automated workflows can touch HRIS and ATS data without exposing it to unauthorized models or personal accounts.
With Zapier SDK, you can use this prompt: "Build me something that pulls new hire data from our ATS when a candidate is marked hired, creates their profile in our HRIS, and kicks off the onboarding sequence—without routing any of it through personal accounts or unapproved models." Zapier SDK connects the apps, and Zapier's governance controls make sure the data stays where it's supposed to.
How to get started with Zapier SDK
If you're new to Zapier, before you do anything else, create a Zapier account. You'll have access to Zapier SDK on the free tier. Then head to the app connections page in the Zapier member home and connect at least one app. And make sure Node.js 20+ is installed on your device.
Not a developer? Node.js is a software platform that lets you run code on your computer. To install it, go to nodejs.org/en/download, scroll down to "Or get a prebuilt Node.js," and download the installer for your operating system, which the page should detect automatically. If you run into trouble, you can ask your coding agent to walk you through the installation process.
Once those prerequisites are taken care of, you can get started with a one-command setup or through manual steps.
Choose the one-command path if you want to get started fast and don't mind letting your AI coding agent handle the details. It uses browser login and walks you through each step.
Use this prompt
If you want more control, especially over how the SDK authenticates, go manual. In addition to browser login, this path covers two non-interactive options for situations where no one is available to click through a browser window: client credentials (for server-side apps) and direct token. This is also the better path if you're not using an AI coding agent, since you only need a terminal and a text editor.
For the full manual setup instructions, visit the Zapier SDK Quickstart guide.
Bring the Zapier infrastructure to your coding tools
Zapier SDK gives coding agents and builders programmatic access to our full app ecosystem, with auth, governance, and reliability built right in. If you're ready to start and want more guidance, head to our SDK help docs.
