Inkbox (YC S26)

We raised $5.3M to give AI agents a computer to run on, with their own email, phone, iMessage, and WhatsApp Led by @peakxvpartners, with @rauchg, @sternhenri, @jefrankle, @cjc, and @daniel_levine Today we’re launching hosted agents on @inkbox_ai. Your agent runs next to its communication channels, so it never misses a reply. It sleeps when idle, so you don’t pay for downtime. In the 4 months since our YC launch, we’ve processed millions of messages for AI agents.

Companies spent years battling bots. Now they’re fighting for their business. AI agents are the majority of Web traffic and generate most code pushed to production. Soon, they'll be buying most of what gets sold online. New piece with @omooretweets on the B2A economy 👇

Inkbox is a YC-backed service that gives AI agents (including Grok Bot) their own email, phone, and iMessage identity. Here the bot uses it to text you important email alerts as blue-bubble iMessages so they are hard to miss. Setup takes ~10 minutes via the Grok Bot plugins menu, is free for basic iMessage, and is worthwhile if you want proactive pings outside the app.

I just set up iMessage for my Grok Bot I get a lot of emails, so it's easy for me to miss important ones I prefer to get pings on iMessage because it guarantees that I’ll see them How to set it up (~10 mins, free): 1. Tell your Grok Bot you want important pings on iMessage 2. It finds Inkbox, which gives the bot its own iMessage number 3. Approve the connection in one tap 4. Scan the QR code 5. Send one text from your iPhone so the bot is allowed to message you

2 months, 23 samples, one octopus turned the @inkbox_ai mascot we designed into a real plushie. mailing it to the team this month might turn this into a thing: we design mascots and make them into plushies. who wants one?

NEW: you can now bring your own tools to Inkbox voice AI calls Connect your MCP servers, and the agent can > look things up > take actions > pull in context from your systems all while it’s on the line Check it out: inkbox.ai/docs/capabilities/…

My favorite use of an AI assistant. Spin off a ton of agents, then go about your day. Get a text when they have all settled. Love @inkbox_ai for easy iMessage integration.

haven't posted in a while so i asked our @inkbox_ai powered agent to go through slack and give me this. there you go.

@inkbox_ai is crushing for me! Happy to share the setup. It's the best I've found at texting and calling on my behalf as an executive assistant, without sharing context that would be inappropriate and knowing which contact is which.

INTRODUCING: Dima-Bench the new hardest Voice AI benchmark. @inkbox_ai voice agent: 8.5/10

Just gave my Grok Bot its own iMessage line with @inkbox_ai 📱@bot Now I can text my AI assistant like a friend, even on plane Wi-Fi that only allows messaging. A webhook routine wakes it on every text and it replies right in the thread. 15 min setup. Highly recommend.

just won $2,000 at @ycombinator's hackathon thanks to @nemild for putting together such a great event and @rayruizhiliao @DVremenko @alxwlcx from @inkbox_ai for judging + creating a sick product

I just setup iMessage with @bot and @inkbox_ai

3rd place in the @inkbox_ai track at Y Combinator's "Make Something Agents Want" hackathon. Built Streward to give AI agents their own identities, complete with email addresses and phone numbers. They explore 3D environments, verify real world facts, coordinate with each other, and autonomously handle tasks through calls, texts, and emails. Huge thanks to @inkbox_ai for recognizing my project in their track and also @ycombinator for organizing such a cool hackathon.

3rd overall at @ycombinator hackathon 3rd @insforge track 3rd @inkbox_ai track Cookies to @manufact & @stripe y'all are tuff companies and hella chillers. Did I do good for my first time?

Epic energy as we kickoff the Make Something Agents Want hackathon at Y Combinator #makesomethingagentswant

software i genuinely use everyday without fail: > @SlackHQ > @github > @raycast > @figma > @herdrdev > @claudeai > @OpenAI > @bot > @getcontextdev > @inkbox_ai > @trykyoHQ > @vercel > @slashyemail > @AsideAI

. @inkbox_ai came to us in YC S26 with no brand and 12 days until launch. They give AI agents their own identity: email, phone, iMessage and more, all connected to one agent. In 12 days we did: > Branding, with a soft 3D octopus as the face of the brand. > The story and copy. > A marketing site, designed and built. > The web app, designed with front-end code. > A launch kit: OG images, banners, a deck template and a video kit. Inkbox launched on day 12.

Excited for the Make Something Agents Want Hackathon at Y Combinator this weekend. So many companies are ripe for disruption now that agents are the user. Last chance to apply (link below)