Connect to the apps your users rely on without maintaining the infrastructure that keeps it working.
Customer configuration by integration.
Send a calendar invite and email to Garry Tan for Thursday morning for the sales call. Prep the sales team too and see who can join.
Claim yourname.lug.dev, connect your apps once, and add the one address to every AI tool you use. Nothing to install.
Works in Claude, ChatGPT, Cursor and any MCP client400+ appsApprovals before anything risky
Connect the apps a role uses once, and your agent does the work across them, asking you before anything risky. The same in any MCP client.
Used Corsair · run_script
Found 20 companies and their heads of engineering. 3 were already in HubSpot, so I drafted 17 emails in Gmail and posted the list in #sales.
Used Corsair · run_script
Moved the five you approved to Phone screen. Each has a Gmail draft with a single-use Calendly link, ready for you to send.
Used Corsair · run_script
Sent your briefing on Slack: 5 meetings, notes for 3 of them, and 4 emails to answer. Want this every weekday at 7:30am?
Used Corsair · run_script
38 tickets came down to 4 bugs. I filed a Linear issue for each with the ticket links and posted the summary in #support.
Used Corsair · run_script
Opened 4 Linear issues for the Sentry errors nobody was tracking. 3 pull requests in acme/api have waited more than two days for review.
Used Corsair · run_script
Added the ten best keywords to "SEO plan", with search volume and last month's traffic next to each.
Pull all orders that haven't been shipped from Airtable.
Reply to Dev's email and tell him we'd like to start using Corsair this week and to send over the agreement.
Message me in Slack when Dev finally uploads the Q4 financials to Drive.
The problem
APIs are a moving target.
Auth flows rotate, routes deprecate, schemas change, and error handling varies wildly per provider. What works today breaks quietly in six months.
Closed source tools hold you hostage.
You're limited to whatever integrations they've built. If you need an integration they don't support, you're at the mercy of their roadmap.
The solution
Set a permission mode per integration. Destructive actions require explicit approval before they execute. Your users get a review link, not a surprise.
Run the full SDK on your own infrastructure at no cost. No per-seat pricing, no data leaving your stack, no vendor markup on API calls you're already paying for.
Need an integration we don't have? Open a PR and we'll merge it. Or fork our repo and add exactly what you need. Thousands of eyes are on Corsair's infrastructure, so you're never trusting a black box.
For tools like Firecrawl, Exa, Apollo and Reducto, Corsair holds the API key. Add one to your link and it's ready: no sign-up with the provider, no key to paste, no monthly plan. Each call costs Corsair credits, and a call that errors gets them back.
Pricing
For small projects
For custom needs
Most are closed source. If they're missing an integration, you wait for them to add it. Corsair is open source. Add any integration yourself. Also, with the SDK your users' credentials stay in your own database, encrypted with a key only you hold. Hub relays the connect flows and doesn't keep those tokens.
You can get 80% there fast. The other 20% (token refresh, webhook signature verification, API deprecations, rate limit handling, multi-tenant credential isolation) compounds into a maintenance burden that distracts from your actual product. Corsair is an easy drop-in that takes away all of those headaches.
No. Corsair resolves credentials internally at call time. Your agent sees method names and results only.
Data flowing through Corsair is stored and kept fresh via webhooks and polling, partitioned per tenant. This is useful if you need to query the same data repeatedly and are worried about rate limits. Reads hit the database, not the third-party API on every request.
Yes. Call it like any typed library. Add a "Sync from Airtable" button, a "Create calendar invite" action, a "Post to Slack" trigger. No agent required.
Open a PR, fork the repo, or scaffold a new plugin with one command and build it yourself. It's all open source TypeScript.
Yes. Corsair Cloud runs on the open-source SDK and uses envelope encryption: every account's API keys, tokens and synced data are encrypted with their own key, and the keys that unlock them are held in AWS KMS and rotate automatically. If our database leaked, your keys and data would stay unreadable. One customer can't reach another's data, and every action your agent takes is checked against your link's mode.
Learn more about security →