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OpenSEO logo

OpenSEO

YCombinator

Open source alternative to Semrush and Ahrefs

Connect to your AI Agent in 2 minutes. Get expert level advice tailored to your business backed by real data like keyword search traffic, backlinks, and technical audits of your site. Here are some good skills to start with: /seo-audit What 1-2 changes to your website will drive more traffic? /keyword-research Find topics worth writing about? /competitor-analysis Understand your competitors’ SEO strategy.

B2BBostonOpen SourceMarketingSEO
OpenSpec logo

OpenSpec

YCombinator

Plan mode for complex features

OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, without dragging teams into rigid, bureaucratic workflows.

Sydney, AustraliaWinter 2026Active
Opensteer logo

Opensteer

YCombinator

Specialized agents for real work

Opensteer creates specialized AI agents in cloud computers that can integrate with anything. Each agent gets customizable browser access, tools, instructions, and guardrails, so it can work 24/7 exactly the way you need.

B2BLos Angeles, CAArtificial IntelligenceRobotic Process AutomationB2BAPIAutomation
OpenTag logo

OpenTag

YCombinator

Model Agnostic AI coworker in Slack

OpenTag is an AI coworker in your Slack with full context on your company. It answers questions and takes real work off your plate. It also keeps your wiki up to date automatically, so knowledge never goes stale.

B2BSan FranciscoAIOpsArtificial IntelligenceB2BWorkflow AutomationEnterprise Software
OpenTools logo

OpenTools

YCombinator

The API for LLM tool use

No description available.

B2BSan FranciscoMarketplaceAI
OpenTrade logo

OpenTrade

YCombinator

Investing for the rest of us

OpenTrade helps everyday investors trade at a hedge-fund level. We're experimenting with a new UX on investing: every morning, you swipe on 10 theses brought to you by proactive agents

Seattle, WASummer 2026ActiveConsumer FinanceSeattle
OpenVector logo

OpenVector

YCombinator

AI that turns any camera to an autonomous worker with real-time vision

OpenVector transforms any existing camera into an automated 24/7 workforce without requiring new hardware. We've built the world's fastest vision-language model inference engine that allows users to simply describe a task in plain English and automatically build a custom AI vision model to monitor their feed. When it detects an important physical event—like a stalled production cycle, a safety violation, or a waiting customer—it operates a computer just like a human to take immediate action. It integrates with legacy systems, makes calls, sends emails, updates a POS/CRM, or triggers webhooks in real time. OpenVector enables any camera to do real work.

B2BSan FranciscoRoboticsComputer VisionInfrastructureIndustrial
OpenWork logo

OpenWork

YCombinator

The open source alternative to Claude Cowork

OpenWork is a desktop app that lets people connect to their existing skills, MCPs, and agents. Users can download the app for free, try it with over 50+ model providers, and easily share their setup with their team.

San FranciscoSpring 2026ActiveSan Francisco
OpenWrench logo

OpenWrench

YCombinator

We help retailers and restaurant chains manage repairs and…

We helps retail and restaurant chains big and small deliver great customer experiences, putting money back in their budget and time back in their day.

B2BSan FranciscoEnterprise
OpEra logo

OpEra

YCombinator

Automated operations research (OR) lab

Opera (YC F26) is an automated operations research lab applying mathematics and AI to optimize operations for retail, logistics, manufacturing, agriculture and more, delivering solutions for VP of Operations, supply chain leaders, plant managers and COOs to improve efficiency and decision-making.

B2BNew York City, NYLogisticsManufacturingSupply ChainOperationsAI
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