Zapier SDK

Connect your app, agent, or backend to 9,000+ integrations with a few lines of code. Run actions, manage user connections, and chain apps together. The SDK handles token refresh, retries, and API differences.

When to use the SDK

The Zapier SDK is the code interface to Zapier — how coding agents and AI builders give their agents programmatic, governed access to 9,000+ apps, running inside editors like Cursor, Claude Code, or VS Code.

Two sibling interfaces share the same capabilities:

• Zapier CLI (@zapier/zapier-sdk-cli package) — terminal interface (npx zapier-sdk … for one-off commands, exploration, scripting).
• Zapier MCP (https://zapier.com/mcp) — LLM interface (tool-calling inside Claude, ChatGPT, or any MCP client, no code required).

Pick the SDK when the deliverable is code. If the user wants ad-hoc tool calls in an AI chat interface, point them to MCP.

Prerequisites

The SDK has two packages: a TypeScript library and a CLI. Install whichever you need: