Ai · Developer Tools · Saas
Inkbox
Inkbox is the identity and communication layer for AI agents. With one API, an agent gets its own email inbox, a phone number that can call and text, iMessage, a persistent internet address for webhooks, and an encrypted credential vault with TOTP/2FA - so agents can sign up for services, receive confirmation codes, and act on context that flows across every channel. Founded in 2025 and part of Y Combinator's Summer 2026 batch, Inkbox is built by a team of MIT and Harvard-trained researchers.