docs.zapier.com

# Zapier ## Docs - [Zapier Developer Documentation](https://docs.zapier.com/index.md): Documentation for building integrations, building with the SDK, MCP or embedding Zapier. - [Core reference](https://docs.zapier.com/integrations/build-cli/core.md): Reference for `zapier-platform-core` - [Download the source code of a CLI integration](https://docs.zapier.com/integrations/build-cli/download-source-code.md): If at any point you do not have the source code for your CLI integration and need it to make changes, you can download a zip file of the source code directly from the Platform UI. - [Dynamic dropdowns](https://docs.zapier.com/integrations/build-cli/dynamic-dropdowns.md) - [Empty values in input data](https://docs.zapier.com/integrations/build-cli/empty-values-in-input-data.md): Handing empty values in `bundle.inputData` in your `perform*` functions - [Frequently Asked Questions](https://docs.zapier.com/integrations/build-cli/faqs.md) - [Hydration](https://docs.zapier.com/integrations/build-cli/hydration.md): The best answer to this lives in our [CLI docs](https://docs.zapier.com/integrations/reference/cli-docs#dehydration): - [Unauthorized Access to Zapier NPM Packages](https://docs.zapier.com/integrations/build-cli/inc-547.md) - [Input Field Configuration](https://docs.zapier.com/integrations/build-cli/input-fields.md) - [Making HTTP requests](https://docs.zapier.com/integrations/build-cli/making-http-requests.md): How to make HTTP requests from your Zapier integration to interact with your API - [Build with CLI](https://docs.zapier.com/integrations/build-cli/overview.md): Zapier is a platform for creating integrations and workflows. This CLI is your gateway to creating custom applications on the Zapier platform. - [Testing and debugging](https://docs.zapier.com/integrations/build-cli/testing-and-debugging.md): Test your integration using `invoke` command and unit tests. Debug locally using a step-by-step debugger. - [TypeScript integrations](https://docs.zap