
Building @corsairdotdev (YC W25) Connect your users to their apps UT Austin '22 🤘
New York City
Joined November 2025
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Replying to @gustaf
Corsair is becoming the go-to for writing integrations. Check out our Github and DM me if you're struggling with integrations
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we are SO close to our meetings directly fixing bugs
we test corsair in meetings. granola records this and opens issues. our coding agents pick up those issues and write PRs. those PRs get code reviewed and then merged.
then we review fixes in the next meeting
not sure if this is possible for net new features since those require iterating until they "feel" right, but it's great for bugs
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every startup uses some combination of slack, linear, granola, github, google calendar, a crm, etc
agents move across these more since they interact through MCP. the lines between each of these integrations is blurring. for example, you want to associate a bug in linear with a user who reported it in your crm. or you want meeting notes in granola to end up as a set of to-dos in slack.
this data shouldn't live in different products, but in a shared space where agents can move across without friction. ideally, the agent then builds triggers on its own to alert itself when important things change, and then surface stuff back to the team.
imo these shouldn't live as independent workflows and saas integrations
Build interactive artifacts within Claude from a single MCP URL.
Reserve your own MCP URL @ lug . dev
Also, a cool new feature: if we don't have a feature, your agent can submit a feature request through an MCP tool.
as SaaS apps move to become chat-first, people will have less loyalty to traditional stuff like CRMs, calendar tools, product management tools, etc.
it’s also so easy to migrate data between them. just use a coding agent
huge opportunity here
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“i miss when a launch meant months of work and the beginning of a commitment”
that’s such a great way to put it
there are so many apps trying to do the same thing these days. alfred, raycast, tinyast, now this and probably a dozen more
whenever i see one of these launches, i can’t help but wonder if the project will be dead in a few weeks, and whether the whole point was just to ship something and get a viral tweet out of it
and maybe i’m completely wrong, but what’s the business model? are you still going to be working on this six months from now?
i’m increasingly finding myself wanting to either build my own tools or use software made by people who are genuinely obsessed with what they’re building
i use raycast because i know how much thought and effort they’ve put into it over the years, but i’d happily switch if something better came along
i guess that’s what bothers me about launches these days. it’s getting harder to tell who’s genuinely trying to build something lasting and who’s just chasing virality
maybe i’m getting cynical, but i miss when a launch meant months of work and the beginning of a commitment, not just a couple of prompts and a tweet
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our team uses linear, but everyone just connects their mcp and chats with it. i used to love linear because it was an amazing product experience and so pleasant to use
but now it's weird to pay for 6 seats on linear when we just use it as a glorified database.
at this point, it's hard to justify paying for it
14,243 tools if you connect every integration directly to your agent
just 9 tools if you do it through Corsair
this means your agent never has context bloat, but can still do anything you ask of it
try adding your own custom mcp url to your agent and see how efficient and powerful Corsair is
I trust different agents with different things.
Corsair lets you give Claude, Cursor, and ChatGPT their own unique access.
This means every Corsair link has its own mode: read, cautious, strict, or open.
The best part of Corsair is that every integration is open source.
Open source doesn't mean it's code you don't have to write. It means that everyone is dependent on the exact same code. It's type-safe, secure, and hardened over thousands of uses.
We are already at 400 integrations and almost 300 contributors!
I just set this up with Claude Code + Corsair
- Every morning, find 10 new CTOs in New York who I should reach out to
- Search LinkedIn to see why they'd be a fit
- Send them to me in Slack
Get your own MCP url at lug.dev
Use it across all your agents
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I work across 4 different chat apps every day, and I spend a lot of time making sure they're all synced to the same few apps.
We just created lug.dev
Just create a single MCP server and connect it to Claude, ChatGPT, Cursor, Codex, and your custom agents.
You get your own profile that you can share with anyone.
seeing a lot of personal agents being built but not too many people trying to make existing chat interfaces more personalized (chatgpt, claude, etc)
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Corsair connects your users to their apps.
Build custom UIs, agents, knowledge bases, workflows, and just about anything else.
11k+ Github stars, 50k+ monthly downloads, 500+ integrations
Get started at corsair.dev
Corsair just launched on @ycombinator's Launch YC!
The open-source integration layer for agents and product UIs.
ycombinator.com/launches/TE8…
We had to hire a new engineer to review PRs because so many developers contributed to Corsair.
Keep picking up integrations! We have almost 900 of them left.
This is happening!
Build integrations into Corsair and win AI credits.
Contribute to an open-source repo and watch thousands of developers use the code you wrote.
Link in thread
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The smallest details about a product make it so pleasant to use.
If you copy env vars and paste them to Vercel, it automatically splits up the name and key for every pair.
They didn't have to do this.
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