Onplana/onplana-mcp-server

Onplana MCP server is an open-source TypeScript implementation of the transport layer for a Model Context Protocol (MCP) server, extracted from Onplana’s production deployment. It provides two packages: a server template (streamable HTTP transport, stateless operation, scoped Bearer auth, prompt‑injection containment, and a pluggable Dispatcher interface) and a typed client SDK for calling Onplana’s public MCP endpoint. Intended for engineers building MCP servers or integrations (agents, custom connectors like Claude/Desktop, Cursor, ChatGPT, Gemini, VS Code Copilot), it emphasizes security and scalability patterns: prompt-injection wrapping/escaping, stateless transport, plan-gating, rate limits, tenant cost caps, audit logging, preview-mode for risky mutations, and idempotency. Includes an in-memory example, tests, and Node/Express compatibility notes.

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