Corsair - Open source AI integration layer
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).
Key features
- OAuth-based integrations — Pre-built connectors for popular apps eliminate the need to maintain API connections as provider endpoints change.
- Granular permission controls — Destructive actions require explicit user approval before execution to prevent unintended data modifications.
- MCP protocol support — Uses the Model Context Protocol for standardized communication between AI models and external tools.
- Self-hosted deployment — Open-source architecture allows teams to run the integration layer on their own infrastructure.
- Multi-tenant architecture — Supports isolated user contexts and custom configurations across different organizations.
The platform targets software engineers and product builders shipping AI agents or automated internal workflows who need reliable OAuth token rotation and unified tool calling. Corsair is available via free self-hosting alongside a Hobby tier, a Pro plan at two hundred dollars per month, and custom Enterprise options.