Discover the next generation of startups.

Notyfi

YCombinator

Live alerts for anything happening in the world.

Notyfi tracks anything you want, anywhere it happens. Tell us in plain English what matters, new lawsuits, layoffs, price drops, listings, RFPs, breaking news, and we watch the news, filings, databases, and the open web for it. You get notified instantly, hourly, daily, or weekly, by email, on a live dashboard, or directly into your agents and workflows through our API and MCP.

Odeko

YCombinator

Our operations software makes it easier to run--and grow--your cafe

We’re a passionate team of dreamers and builders, determined to liberate small businesses from the not-so-fun aspects of the job so that they can focus on what’s fun and important.

Okibi

YCombinator

Build AI coworkers using natural language, it's Lovable for agents

Okibi is a web app that lets you create AI coworkers using natural language. It's like Lovable for creating AI agents that talk to your internal software Corporate users lose 2 hours every day doing tasks that can be automated with agents But existing agent builders have janky drag and drop UIs that don’t map to what they want exactiy. Okibi lets everyone use natural language to build the exact agent they want.

OneCLI

YCombinator

The Identity Gateway for AI Agents

OneCLI is a credential isolation gateway for AI agents. Agents see placeholder tokens instead of real API keys and OAuth credentials, the real secrets are injected at the network layer, so a compromised or misbehaving agent can never leak them. Teams get per-agent access control, full audit logs, and one-click integrations with Gmail, GitHub, Jira, Slack, and 50+ other apps. OneCLI is open source (2.5K+ GitHub stars, 300K+ downloads), Already the default credential layer for products like NanoClaw.

OneSignal

YCombinator

Engage customers through personalized omni-channel messaging

OneSignal is the leading omnichannel customer engagement solution, powering personalized customer journeys across mobile and web push notifications, in-app messaging, SMS, and email. Our easy-to-use interface empowers content creators to focus on quality user engagement instead of complex implementation. Our powerful platform enables over a million businesses to deliver 10 billion messages daily and 1 in 7 new apps launches using OneSignal! We support companies in 140 countries, including Zynga, USA Today, Bitcoin.com, Upwork, Tribune, and many more - from startups and small businesses just getting off the ground to established companies communicating with millions of customers.

Openroll

YCombinator

The AI workforce for People and Finance teams

Openroll is an AI-powered workspace for people and finance teams. Openroll lets teams automate recurring work and run fully auditable workflows across their systems. Compensation, headcount, and budgeting in one platform. Learn more at https://www.openroll.com

OS3

YCombinator

Intelligence and Machines for Physical Labor

Semi-humanoid robots that do real physical labor. Building hardware and training models, each driving the other. Already deploying in hospitality.

Osseus

YCombinator

The secure research brain for accelerating R&D

Osseus is the secure research brain for R&D teams. Today, research knowledge is fragmented across specialist tools, decisions, conversations, and people's heads. Osseus crafts this into a permissioned memory that grows with every experiment, decision, failure, and lesson learned. Rather than only retrieving the current state of connected tools, Osseus preserves how work evolved: what was tried, what failed, why decisions were made, and who holds the relevant context. Each person gets a personal AI agent that uses this growing history to proactively surface relevant evidence, help prevent duplicated work and repeated mistakes, and identify the exact expert who can unblock the next decision. By preserving both technical history and the organizational know-how behind team processes and decision making, Osseus helps R&D teams move faster before time and money are wasted.

Pally

YCombinator

Intelligent Unified Inbox + Personal CRM

We spend our lives in messaging apps. Slack. iMessage. WhatsApp. We face a constant stream of information, introductions, and things we need to do. What if you could bring together every message, from every platform, in a Superhuman-like experience, with AI agents that automatically complete your action items? That’s exactly what we’re building at Pally; a future where you never need to check another inbox again.