Add any integration in minutes

Connect to the apps your users rely on without maintaining the infrastructure that keeps it working.

Backed by Y Combinator
Corsair
DashboardAgent Chat App

Agent Chat App

Customer configuration by integration.

Gmail
Slack
Notion
Granola
HubSpot
GCal
Stripe
Airtable
Linear
GitHub
PostHog
Resend
Sheets
Discord
Tavily
Patrick Collison
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Missing Credentials
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Dario Amodei
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Ryan Roslansky
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Stewart Butterfield
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Ivan Zhao
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Dylan Field
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Thomas Dohmke
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Joe Gebbia
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Sundar Pichai
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Reid Hoffman
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Brian Chesky
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Chris Wanstrath
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Lidiane Jones
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BCBen Chestnut
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Patrick Collison
Corsair connectedGranola, HubSpot, Notion, GCal, Gmail, Slack

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.

📎
Claude Sonnet
New

Introducing lug.dev, your own MCP address

Claim yourname.lug.dev, connect your apps once, and add the one address to every AI tool you use. Nothing to install.

​

Sign in next to claim it.

Works in Claude, ChatGPT, Cursor and any MCP client400+ appsApprovals before anything risky

See how lug.dev works

Turn Claude into a sales rep

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.

Using Corsair, find 20 US fintech companies with 50 to 200 people in Apollo and their heads of engineering. Skip anyone already in HubSpot, draft a short first email to each in Gmail, and post the list in #sales on Slack.

Used Corsair · run_script

  1. Find companies that fit the ICP
  2. Find the decision-makers
  3. Skip anyone already in HubSpot
  4. Draft a first email to each
  5. Post the list for the team

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.

See every use case

Built to handle real-world requests

Auth in chat

Patrick Collison
Corsair connectedAirtable, Sheets, Slack

Pull all orders that haven't been shipped from Airtable.

📎
Claude Sonnet

Permissions for sensitive actions

Dario Amodei
Corsair connectedGmail, Notion

Reply to Dev's email and tell him we'd like to start using Corsair this week and to send over the agreement.

📎
Claude Sonnet

Triggers & workflows

Ryan Roslansky
Corsair connectedSlack, Drive, HubSpot, Linear

Message me in Slack when Dev finally uploads the Q4 financials to Drive.

📎
Claude Sonnet

The problem

Every app your product talks to makes it exponentially more powerful.
Building those connections is the hard part.

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

Corsair takes the integration layer off your plate.
Production-grade, open source, and a product you'll confidently ship.

  • Permissions that protect you by default.

    Set a permission mode per integration. Destructive actions require explicit approval before they execute. Your users get a review link, not a surprise.

  • Self-host for free. Cut your integration costs.

    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.

  • Open source means you're never blocked.

    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.

No account for every tool. Pay per call.

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.

  • 100free credits a month
  • $1 = 100credits after that
  • Roll overpaid credits carry over
What a call costs1 credit = $0.01

Pricing

Try for free. No credit card required.

Hobby

$0/mo

For small projects

Get started
Most popular

Pro

$200/mo

For teams in production

Get started

Enterprise

Custom

For custom needs

Tool calls
Unlimited
Unlimited
Unlimited
Connections
50
Unlimited
Custom
Webhooks
100k events
Unlimited
Custom
Managed Permissions / Auth pages
Unlimited
Unlimited
Custom
Team members
Up to 3
Unlimited
Custom
Consent screen
Corsair branding
Custom branding
Custom
Support
Discord community
Slack
Custom
Custom Integrations
Community
Corsair team
Custom

FAQ

How is this different from existing integration products?

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.

Why not just vibe code integrations myself?

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.

Does my agent ever see my API keys?

No. Corsair resolves credentials internally at call time. Your agent sees method names and results only.

How does caching work?

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.

Can I use this without an AI agent?

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.

What if I need an integration you don't have?

Open a PR, fork the repo, or scaffold a new plugin with one command and build it yourself. It's all open source TypeScript.

Is the hosted version secure?

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 →