OpenConnector Pitches Itself as the Self-Hosted Composio — 1,000+ Providers, 10,000+ Actions, Credentials Never Leave the Boundary

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oomol-lab/open-connector (Apache 2.0, v1.2.0 released 2026-07-16, 2,682 stars since 2026-06-29) is an auth gateway letting users connect SaaS accounts once, then exposing a shared catalog of 1,000+ providers and 10,000+ prebuilt actions to agents — GitHub, Gmail, Notion, BigQuery, Supabase, Airtable, Slack, and more. Credentials stay behind a runtime boundary encrypted with token refresh; agents only receive execution results and metadata. It supports API keys, OAuth2, custom credentials, and no-auth providers across five surfaces: a TypeScript SDK, an `oo connector` CLI relay, an MCP endpoint at /mcp, HTTP/OpenAPI at /v1/actions/*, and a debug dashboard. The README positions it explicitly as an open, self-hostable alternative to Composio's SaaS-only model.