Corsair
Open Source Integration Layer for AI Agents
Corsair is an open source integration layer for AI products, handling OAuth, multi-tenant credential isolation, permissions, webhooks, and hosted or self-hosted execution so teams can connect to third-party apps without maintaining that infrastructure themselves. It addresses the maintenance burden of changing auth flows, deprecating routes, shifting schemas, and per-provider error handling.
The platform exposes typed operations and webhooks across a large catalog of integrations, including Slack, GitHub, Gmail, Notion, Stripe, Salesforce, Google Calendar, and many others. It supports permission modes per integration with explicit approval for destructive actions, internal credential resolution so agents see only method names and results, per-tenant data caching refreshed via webhooks and polling, and MCP support. It can be used with an AI agent or called directly as a typed library, and plugins are written in TypeScript.
Corsair is aimed at developers building AI products or applications that need secure, multi-tenant connections to user-facing apps. It is available as a hosted service or self-hosted SDK, with a free Hobby plan for small projects, a Pro plan for teams in production, and an Enterprise edition with custom terms; a free trial is offered without a credit card.
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