"Aufgaben von Claude zu Gemini zuweisen, um Token zu sparen" matching MCP connectors:

A4B CMMSOAuth

ai.a4b

[A4B](https://a4b.ai/) is a flat-rate CMMS (asset & maintenance management) that ships a native MCP server — an integration still uncommon in the CMMS category. AI assistants like Claude and ChatGPT can query asset inventory, create and update assets and maintenance tasks, search history, and generate reports. Secured with OAuth sign-in, audit logging, and per-organization isolation. Docs: https://docs.a4b.ai/mcp/

QuickBooks Online in Claude and ChatGPT: 221 tools, full ledger, multi-company, Canada + US, FR/EN.

Praat met je Boekhouding (Chat with your Books)OAuth

nl.praatmetjeboekhouding

Connect Exact Online accounting to Claude, ChatGPT and Copilot. 114 tools, OAuth 2.1, EU-hosted.

MCP server unifying ERPs, CRMs, APIs and knowledge base for Claude, ChatGPT and Gemini.