Developer Docs

Build with Internal Newsletter

REST API, MCP server, and webhooks to automate internal newsletters with AI agents, Zapier, Slack, and custom integrations.

Quickstart

Get your first API call running in under 5 minutes.

API Reference

Full REST API docs — newsletters, blocks, templates, events.

MCP Server

Connect Claude, Cursor, or any MCP-compatible AI agent.

Getting Started

Introduction to the Internal Newsletter API Overview of the Internal Newsletter API for automating employee newsletters. REST endpoints, MCP server, webhooks, and AI-powered content generation. Quickstart — Your First API Call Create your first internal newsletter programmatically in under 5 minutes. Generate an API key, create content blocks, and assemble a newsletter. Authentication & API Keys How to authenticate with the Internal Newsletter API. API key generation, scopes (read, write, send_preview), security best practices, and rate limits.

API Reference

API Overview Complete REST API reference for Internal Newsletter. Endpoints for newsletters, content blocks, templates, events. JSON responses, pagination, and error handling. Newsletters API API reference for managing newsletters. Create drafts, add content blocks, update status, render previews, and send test emails programmatically. Content Blocks API API reference for content blocks. Create typed newsletter sections (CEO updates, team spotlights, event announcements), use AI drafting, and manage content status. Newsletter Blocks API API reference for composing newsletters. Add content blocks to newsletters, remove them, and reorder them programmatically. Templates API API reference for newsletter templates. List available templates, get details, and use template slugs when creating newsletters. Events API API reference for events. List upcoming company events, awareness days, and cultural dates. Get suggested newsletter content for each event. Team API API reference for the team endpoint. Get team details, brand colour, newsletter cadence, current plan, and usage metrics. Webhooks & Content Ingestion Ingest content from external sources into Internal Newsletter via webhooks. Push updates from Slack, Notion, BambooHR, and other tools as newsletter content blocks.

Integrations

MCP Server — Connect AI Agents Connect AI agents to Internal Newsletter using Model Context Protocol (MCP). 21 tools for newsletter creation, content management, and AI drafting. Works with Claude Desktop and Cursor. Using AI Agents for Newsletter Automation How to use AI agents like Claude, GPT, and custom LLM workflows to automate internal newsletter creation, content drafting, and distribution. Zapier & Make Integration Connect Internal Newsletter to 5,000+ apps with Zapier and Make. Automate content collection from Slack, Google Forms, Notion, and HRIS tools. Slack Integration for Internal Newsletters Connect Slack to Internal Newsletter. Automatically turn pinned messages, channel updates, and team announcements into polished newsletter content blocks. HRIS Integration — Automate New Starter & Team Content Connect your HRIS (BambooHR, Rippling, HiBob) to Internal Newsletter. Automatically create new starter welcome blocks and anniversary announcements.

Developer Guides

Guide: Automated Newsletter Assembly Step-by-step guide to building an automated newsletter assembly pipeline. Pull content, draft missing sections with AI, assemble, preview, and distribute. Guide: Content Ingestion Pipeline Build a content ingestion pipeline that automatically collects newsletter content from Slack, Notion, Google Docs, HRIS, and GitHub into your content library. Guide: Building Custom Integrations Guide to building custom integrations with the Internal Newsletter API. Authentication, error handling, pagination, and code examples in Python, JavaScript, and Ruby.

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