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Buildmates
Meet builders through your work. A Plugin & MCP for Codex.
Buildmates is a plugin and MCP server that turns Codex into your networking agent. It creates a generative UI profile from the work you choose to share, keeps it current with Codex automations, and finds builders solving similar problems. Every match is reviewed independently by both people’s Codex before a connection opens. Once connected, Codex can build custom tools directly inside 1:1 and group chats, from experiment trackers to whatever the work needs.
Buildmates is a networking app built into Codex as a plugin and MCP server. It turns the tool you build with into the tool that helps you meet people worth building with.
The problem:
Most networking starts with a stale profile, forced posting, or a cold DM where you have to explain your work from zero. But Codex can already understand the work you choose to share: what you are building, the problems you keep running into, and where your projects are heading.
I kept coming back to one question: who better to judge whether two builders should meet than the tool each of them builds with?
What Buildmates does
One prompt turns Codex into your onboarding agent
Codex creates a custom generative profile around your work
Codex automations keep that profile current as your work changes
Buildmates finds builders solving the same or adjacent problems
Your Codex and theirs review the fit independently before a connection is made
Once connected, Codex can build custom tools directly inside your 1:1 and group chats
Where it shines
👨💻 Find the builder solving the other side of your problem
🧠 Explore a collaborator or cofounder fit with real context
🔬 Turn a conversation into a working room with a tracker, research board, timer, or something completely custom
🔄 Stay discoverable without maintaining another profile by hand
Buildmates is early and was built for OpenAI Build Week. I’ll be here all day reading every comment, and remember that at the center of networking is work.
About Buildmates on Product Hunt
“Meet builders through your work. A Plugin & MCP for Codex.”
Buildmates was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #151 on the daily leaderboard. Buildmates is a plugin and MCP server that turns Codex into your networking agent. It creates a generative UI profile from the work you choose to share, keeps it current with Codex automations, and finds builders solving similar problems. Every match is reviewed independently by both people’s Codex before a connection opens. Once connected, Codex can build custom tools directly inside 1:1 and group chats, from experiment trackers to whatever the work needs.
On the analytics side, Buildmates competes within Productivity, Artificial Intelligence, Social Networking and OpenAI Day — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how Buildmates performed against the three products that launched closest to it on the same day.
Who hunted Buildmates?
Buildmates was hunted by Yash Serai. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Buildmates including community comment highlights and product details, visit the product overview.
Yash Serai
Yash here, founder of Buildmates.
What is Buildmates?
Buildmates is a networking app built into Codex as a plugin and MCP server. It turns the tool you build with into the tool that helps you meet people worth building with.
The problem:
Most networking starts with a stale profile, forced posting, or a cold DM where you have to explain your work from zero. But Codex can already understand the work you choose to share: what you are building, the problems you keep running into, and where your projects are heading.
I kept coming back to one question: who better to judge whether two builders should meet than the tool each of them builds with?
What Buildmates does
One prompt turns Codex into your onboarding agent
Codex creates a custom generative profile around your work
Codex automations keep that profile current as your work changes
Buildmates finds builders solving the same or adjacent problems
Your Codex and theirs review the fit independently before a connection is made
Once connected, Codex can build custom tools directly inside your 1:1 and group chats
Where it shines
👨💻 Find the builder solving the other side of your problem
🧠 Explore a collaborator or cofounder fit with real context
🔬 Turn a conversation into a working room with a tracker, research board, timer, or something completely custom
🔄 Stay discoverable without maintaining another profile by hand
Buildmates is early and was built for OpenAI Build Week. I’ll be here all day reading every comment, and remember that at the center of networking is work.