mcptoon

Every MCP-enabled agent loads all tool schemas into the context window before any work begins, and the bill grows with each server you connect. mcptoon stands in front of them as a single command-line client, so the schemas stay out of the prompt until something actually calls a tool. The project reports 255 tools costing 90,804 tokens when loaded directly against 117 tokens through mcptoon, with roughly 97 percent saved on discovery and 40 to 60 percent on results. It has no dependencies, installs from PyPI on Python 3.10 or newer, and aims to work with any agent rather than one vendor's client. Apache-2.0.