# 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.

- **Founded:** 2025
- **Headquarters:** San Francisco, California, United States
- **Founders:** Ruizhi (Ray) Liao (Cofounder & CEO), Alex Wilcox (Cofounder & CTO), Dima Vremenko (Cofounder & CAIO)
- **Team size:** 3
- **Products:** Inkbox API, Agent Email Inbox, Phone & iMessage, Credential Vault, Claude Code & Cursor plugins
- **Notable:** Accepted into Y Combinator's Summer 2026 batch., Publicly launched an identity and communication layer for AI agents with email, phone, iMessage, webhooks, and a credential vault., Shipped open-source SDK, skills, and plugins for Claude Code and Cursor.

## Products & services

- **Inkbox API** — A single API that provisions each AI agent a unique email inbox (with custom domain), a phone number for calls and texts, iMessage, a persistent HTTPS address for webhooks, and an encrypted credential vault with TOTP/2FA.
- **Agent Email Inbox** — Dedicated, addressable email for an agent so it can sign up for services and receive confirmation and verification codes.
- **Phone & iMessage** — A phone number that can call and text plus iMessage support, letting agents communicate over the channels people actually use.
- **Credential Vault** — Encrypted storage for logins with TOTP/2FA so agents can authenticate to services securely.
- **Claude Code & Cursor plugins** — One-line installs that add Inkbox identity and communication to popular agent coding environments.

## Achievements

- Accepted into Y Combinator's Summer 2026 batch.
- Publicly launched an identity and communication layer for AI agents with email, phone, iMessage, webhooks, and a credential vault.
- Shipped open-source SDK, skills, and plugins for Claude Code and Cursor.
- Founding team includes an MIT CS PhD and a Harvard Medical School ML researcher with 6+ peer-reviewed publications.

## Latest updates

- **2026-06** — Closed YC seed funding ($130K) as part of the Summer 2026 batch.
- **2026-03** — Featured among Y Combinator's newest batch startups; launched the identity layer for AI agents.

## Links

- Website: https://inkbox.ai
- LinkedIn: https://www.linkedin.com/company/inkbox-ai
- Twitter/X: https://twitter.com/inkbox_ai
- GitHub: https://github.com/inkbox-ai
- YouTube: https://www.youtube.com/@inkbox-ai

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Profile page: https://yespress.io/inkbox-yc-s26
Published by YesPress — https://yespress.io
Last updated: 2026-07-31