Zapier SDK: Connect your code files to thousands of actions

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. And luckily for me, technical builders, and fellow vibe coders everywhere, Zapier SDK launched right on cue.

Zapier SDK is a resource that gives AI coding agents access to more than 9,000 pre-built app integrations in the Zapier directory. They all run through Zapier's governance layer, so you can build safely while you carry out more than 30,000 actions in your other tools. Keep reading to learn what Zapier SDK does and how to equip your code editors and coding agents with it today.

Skip ahead

• What is Zapier SDK?

• What you can do with Zapier SDK

• How to get started with Zapier SDK

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 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. So if you need to go beyond pre-built actions, that path is there for you.

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, fetch gives you raw API endpoint access to around 3,000 additional apps.

• 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 and interoperability: Zapier acts as the safety and oversight layer across every standard API call, making sure your integrations stay within defined permissions and policies. Your code runs against Zapier's governance layer, not the model's. Switching coding agents doesn't change what your integrations can do.

• 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:

Run a nightly reconciliation

You're a founder who needs to match Stripe charges to HubSpot deals every night, flag mismatches, and route exceptions to Slack—across hundreds of records, with branching logic, hitting a Stripe endpoint Zapier doesn't have a pre-built action for.

With Zapier SDK, you can use this prompt: "Every night at 2 a.m., pull the last 24 hours of Stripe charges, match each to a HubSpot deal by customer email, tag matches as 'reconciled,' and post mismatches to #finance-exceptions with the deal owner tagged."

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."

Get your vibe-coded creations to actually do things

You're using AI to vibe code 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.

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.

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. The manual path uses Zapier's CLI, so you'll run commands like npx zapier login and npx zapier init directly in your terminal.

For the full manual setup instructions, visit the Zapier SDK Quickstart guide.

Install Zapier SDK in your AI

Zapier SDK gives you 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.

This article was originally written in April 2026. It was most recently updated in May 2026.