# Notocat Developer Docs

## Docs

- [Create or update in bulk](https://developer.notocat.com/api-reference/endpoint/contacts/create.md): Learn how to create or update contacts in bulk using the Notocat API. This guide covers the POST /contacts endpoint, allowing you to manage your subscriber data efficiently.
- [Delete Contact](https://developer.notocat.com/api-reference/endpoint/contacts/delete.md): Learn how to delete contacts from your newsletter using the Notocat API. This guide covers the DELETE /contacts endpoint, allowing you to remove unwanted subscriber data efficiently.
- [Get Contacts](https://developer.notocat.com/api-reference/endpoint/contacts/get.md): Learn how to retrieve a list of contacts from your newsletter using the Notocat API. This guide covers the GET /contacts endpoint, allowing you to access and manage your subscriber data efficiently.
- [Update a contact](https://developer.notocat.com/api-reference/endpoint/contacts/update.md): Learn how to update a contact's information using the Notocat API. This guide covers the PUT /contacts/{id} endpoint, allowing you to modify existing contact details efficiently and keep your newsletter subscriber data up-to-date.
- [Create an issue](https://developer.notocat.com/api-reference/endpoint/sends/create.md): Learn how to create an issue using the Notocat API.
- [Send an issue](https://developer.notocat.com/api-reference/endpoint/sends/send.md): Learn how to send an issue to your subscribers using the Notocat API. This guide covers the POST /sends/{id}/send endpoint, allowing you to send issues to your subscribers efficiently.
- [Create and send an issue in one request](https://developer.notocat.com/api-reference/endpoint/sends/send-direct.md): Learn how to create and send an issue in one request using the Notocat API.
- [Send a test email](https://developer.notocat.com/api-reference/endpoint/sends/test.md): Learn how to send a test email for a send using the Notocat API.
- [Introduction](https://developer.notocat.com/api-reference/introduction.md): Explore Notocat's API documentation to integrate newsletter functionality, sync contacts, and automate workflows. Learn about authentication, endpoints, and best practices for leveraging Notocat's powerful features in your applications.
- [Custom CSS](https://developer.notocat.com/guides/custom-css.md): Learn how to customize your Notocat newsletters with custom CSS. Discover available classes, best practices, and examples to enhance your email designs.
- [Make.com integration](https://developer.notocat.com/guides/make-integration.md): Discover how to seamlessly sync your contacts using our Make.com integration. Streamline your workflow and enhance your newsletter management with Notocat.
- [Introduction](https://developer.notocat.com/introduction.md): Learn how to use Notocat, the powerful Notion-to-newsletter tool. Discover API integration, contact syncing, and custom CSS for beautiful newsletters.

## OpenAPI Specs

- [openapi](https://developer.notocat.com/api-reference/openapi.json)

## Optional

- [notocat.com](https://notocat.com)
- [Blog](https://notocat.com/blog)