Corsair

Corsair is an integration platform that helps AI products and applications add secure, multi-tenant integrations to their services. It provides developers with essential infrastructure for managing third-party connections, including OAuth authentication, fine grained permissions control, Model Context Protocol (MCP) support, webhooks, and flexible execution options (hosted or self-hosted). Modern AI agents need to connect to dozens of external services — GitHub, Slack, Gmail, Google Drive, and 200+ others — but every provider comes with its own OAuth flow, token refresh logic, rate limits, and webhook format. Corsair handles all of that once, exposing every integration through one consistent syntax. Built natively on the Model Context Protocol (MCP), it plugs directly into AI agent frameworks and can be exposed as an MCP server endpoint for any MCP-compatible client. Crucially, Corsair runs inside your own application and never stores user credentials on its own infrastructure everything stays encrypted in your own database, while the hosted Hub only manages connect pages and OAuth callback URLs. It's built for developers and teams shipping AI agents, internal tools, or SaaS products that need reliable, secure connections to third party APIs without reinventing integration plumbing for every new provider. Corsair is Apache 2.0 licensed and works self-hosted or with the hosted Hub, supporting Next.js, Node, Express, Hono, SvelteKit, Remix, and Astro out of the box. Teams can start free on the Hobby plan — unlimited tool calls, up to 50 connections, and up to 3 team members, no credit card required and scale up to the flat-rate Pro plan when they need unlimited everything.