Open Core Ventures
@OpenCoreVenture
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OCV starts companies around open source software projects.
San Francisco
Joined August 2021
We’re excited to announce the Open Source Project Sponsorship Program, an initiative to help OS authors grow projects with commercial potential. The program offers funding and guidance to accelerate project momentum. Learn more and apply here →
opencoreventures.com
OCV launches the Catalyst Program to help open-source authors grow sustainable projects with funding, strategy, and marketing support. Apply now.
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Read more about RayAI:
opencoreventures.com
RayAI is agent infrastructure powered by Ray, the compute engine behind frontier models.
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RayAI (@RayAI_HQ) extends Ray OSS to help AI agent builders deploy production-ready agents without months of infrastructure work. Built on the distributed compute framework that powers GPT, RayAI transforms laptop prototypes into production systems with a single
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.@SeloraHomes is now accepting early adopters for their private beta, working with both homeowners seeking reliable smart home automation and installers ready to scale their operations. Sign up here:
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Selora Homes (@SeloraHomes) brings professional installation and support to @home_assistant, the most widely used open source smart home system. They combine extensive device compatibility with professional installation and support. Congrats on the launch, Philippe Lafoucrière!
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Gobii just helped users turn 8 billion tokens into productive work — research, recruiting, outreach, real output. Now #1 on OpenRouter’s GLM 4.6 leaderboard, powered by teams running AI on their own infrastructure. https://t.co/nJ1t4rmCfG
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We recently held a roundtable with @sytses and our portfolio founders to review their pricing pages. After reviewing 10+ pricing pages, it was obvious that the best pricing pages are boring and predictable. https://t.co/TMEdBXByC9
opencoreventures.com
Most startup founders overcomplicate their pricing pages, trying to make them do too much.
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We ran a security audit on a public company's MCP server. Here's what we found: - Implemented OAuth spec wrong. Incorrect WWW-authenticate header response and Protected Resource Metadata. - Users are getting exposed to tools they aren't authorized to. - Does not offer granular
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“Partnerships are a force multiplier for existing momentum, not a substitute for product-market fit or direct sales.” @sytses shares his ARR rule for engaging with channel partners, how to set expectations with partners, and red flags to watch for. https://t.co/fR4EF6tJJ8
opencoreventures.com
Successful partnerships are a force multiplier for existing momentum, not a substitute for product-market fit or direct sales.
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We are excited to announce our first Catalyst-graduated company, MCPJam! MCPJam is an open core platform for testing and debugging MCP servers. Congrats @mcpjams and @mjimenezroca on the launch! https://t.co/lYBpN1zTlY
opencoreventures.com
Co-founders Matthew Wang and Marcelo Jimenez grew MCPJam OS from 200 to 1,000+ stars on GitHub during the Catalyst program. Now they're taking their entrepreneurial ambitions to the next level.
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We’re excited to share our newest company, @RamaLamaLabs! 🚀 RamaLama Labs is Chainguard for LLMs. It simplifies compliance by offering a catalog of provably untampered LLMs, packaged in hardened containers that companies trust. https://t.co/N2AYqxxzTp
opencoreventures.com
Open Core Ventures (OCV) is proud to announce the launch of RamaLama Labs, a platform that brings enterprise-grade container lifecycle management to LLM deployments, built on open source ramalama.
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Creator of @Kubetail and YC alum Andres Morey: "Open source is having its Internet moment." https://t.co/MrpZjKFBdC His latest project, @Kubetail, is a lightweight, browser-based logging dashboard for Kubernetes. He recently completed OCV's Catalyst program, increasing the
opencoreventures.com
YC alum Andres Morey sees parallels between 2007 internet skepticism and today's Open Core doubts. His Kubetail project's growth in Catalyst indicates open source companies are starting to have their
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😍 gorgeous use of Phaser!
Experimented with a new lovecraftian game setting this weekend. Still WIP. "Dredge" meets "Vampire Survivors" mashup. Vibe coded on Cursor, with Grok 4 (game set up and major features) and Sonnet 4 (small features and adjustments). Most artwork generated by @RealAstropulse's
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We recently held a roundtable with OCV's founder @sytses discussing strategies for building a venture-scale open core company. Read all the takeaways here:
opencoreventures.com
There is no perfect playbook, but there are proven strategies you can use to build open core businesses that scale while maintaining the trust of the open source community.
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Congrats @p0deje on growing Alumnium 13X during the Catalyst program! 👥 2 to 12 contributors 🌟 29 to 400 stars 🚀 Over 1,200 monthly downloads Read Alex's story: https://t.co/y3RqygDOMr
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OCV founders @zroubalik and Jeff Fernandez share their unconventional paths to becoming the co-founders of @kedifyio, and the future of autoscaling technology. 🔗 https://t.co/DRqMKxMT8w
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OCV’s newest company @Gobii launches today 🚀 Gobii is an AI web agent platform built on the open source framework browser-use. Its web agents can monitor and complete web-based tasks on behalf of a user, bringing AI assistants to the web. Congratulations @ai_christianson on the
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🍇 Now Supporting Custom Fonts in Studio SDK! 🅰️ Until now, the editor shipped with a limited set of system fonts like Arial and Times New Roman (🤮). Starting today, you can fully customize the fonts available in your editor projects. Whether you want to preload custom fonts
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How is AI changing founder and first hire profiles? Your first hires should already be leveraging AI. Leveraging AI doesn't replace familiarity with code bases or passion for projects, but if engineers haven't experimented with agentic coding, that raises a red flag.
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