Nylas

Email

Nylas provides APIs that let developers add email, calendar and contact management into their own applications without building those integrations from scratch. Communications integration is deceptively hard — every provider behaves differently, authentication is fragile and the security expectations are high — which is why it consumes disproportionate engineering time in products where it is not the point. Nylas supports over 100,000 developers and works with more than 900 companies globally, across sectors from healthcare to education, letting teams spend their effort on the product rather than the plumbing.