SaaS & Software

Email and calendar API for developers

A developer-focused SaaS providing unified APIs to read, send and sync email and calendar data on behalf of users, sold to other software companies.

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The idea, in plain language

Nylas is a developer-focused SaaS that provides unified APIs to read, send and sync email and calendar data on behalf of users, sold to other software companies that embed it. Christine Spang rebuilt the company after her co-founder left and the core product stalled, refocusing the product to reach profitability with over 200 paying customers. The customer is engineering teams at other SaaS companies who want to avoid building email/calendar integrations from scratch. Starting requires deep protocol/integration expertise, a stable API platform and enterprise-grade reliability.

Where the sources agree

  • Developer API SaaS exposing email and calendar integration
  • Sold to other software companies as embeddable infrastructure
  • Founder turnaround story from stalled product to profitability

What each source says

indie-hackers#070 – Pivoting from Hard Times to Profitability with Christine Spang of Nylas

Christine Spang turned around Nylas, an email/calendar API for developers, into a profitable SaaS with 200+ paying customers after a co-founder departure and product stall.

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