The fullstack MCP framework to develop MCP Apps for ChatGPT / Claude & MCP Servers for AI Agents.

Self-hosted, open-source MCP gateway: turn any API, database or MCP server into custom connectors for Claude, ChatGPT, Gemini, Copilot & Cursor — no code. Convert REST, SOAP, WSDL, GraphQL & SQL to MCP, with OAuth2, RBAC & audit log. 175+ pre-built adapters (Deutsche Bahn, weclapp, Etsy, DHL, Shopware…)

Discover, score, and safely install Claude plugins, connectors, Copilot extensions, Skills, and MCP servers — with policy-aware risk controls.

MCP App Store | MCP Server Directory for ChatGPT & Claude

OAuth bridge that lets you use SparkyFitness's MCP server from Claude custom connectors (web/desktop/mobile) via any OIDC provider (Authentik, Keycloak, Auth0, ...). Auto-provisions a per-user SparkyFitness API key.