Corsair

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.

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 apollo.organizations.search20 companies
2. Find the decision-makers apollo.people.search20 people
3. Skip anyone already in HubSpot hubspot.contacts.search3 already in HubSpot
4. Draft a first email to each gmail.drafts.create17 drafts
5. Post the list for the team slack.messages.postposted in #sales

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

Permissions for sensitive actions

Triggers & workflows

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.

• 100 free credits a month
• $1 = 100 credits after that
• Roll over paid credits carry over

What a call costs1 credit = $0.01

• Firecrawl Read a web page 1 credit $0.01
• Exa Search the web by meaning from 1 credit from $0.01
• Apollo Find people by title and company 1 credit $0.01
• Reducto Parse a PDF or document 1 credit / page $0.01 / page
• TinyFish Search the web 1 credit $0.01
• Context.dev Get a company's brand data up to 4 credits up to $0.04

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 →