Nylas

Nylas is a data layer platform that enables integration with more than 250 email, calendar, and meeting providers through a unified API, letting applications and AI agents read, send, and manage communications across Gmail, Microsoft, Zoom, and other services without building separate integrations for each provider. It offers an Email API with two-way sync across providers, a Calendar API with bidirectional sync and a native scheduler, and Agent Accounts that give AI agents their own email and calendar identity. Nylas includes a Notetaker API that converts meetings into structured data with transcripts and summaries, OAuth handling and token management, MCP server integration for Claude and other compatible clients, and webhook support for real-time synchronization. The platform processes more than 34.5 billion API transactions and 200TB of data daily, maintains 99.99% historical uptime, and is used by more than 1,000 companies including Dialpad, Clio, and Dayforce. Pricing is freemium, with a free-forever developer plan offering full API access and no credit card required, plus paid plans for scaled usage.