"An introduction to GraphQL" matching MCP connectors:
Matching Connector Tools:
Secure MCP access to Big Red Cloud accounting data, workflows, help and training.
QuickBooks MCP Pack — query customers, invoices, and accounts via QuickBooks Online API.
Chat-first business management. 22 industry templates, 14 widgets. Manage clients, sales, inventory via natural language. OAuth 2.0 authentication.
[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/
Vietnam MISA meInvoice: AI agents create, publish and query e-invoices, stateless BYO.
Denmark Peppol/NemHandel e-invoices for AI agents: send, check recipient, get delivery proof.
Connect Exact Online to your favourite AI with the Ledger Botje MCP server.
AI-native ERP MCP: ES/EU fiscal compliance (VeriFactu/TicketBAI/Facturae), invoicing, tax, banking
Comprehensive Salesforce administration and management
Connect Claude to Ninox ERP: manage inventory, sales, HR & goals, build live dashboards.
MCP server unifying ERPs, CRMs, APIs and knowledge base for Claude, ChatGPT and Gemini.
Connect Exact Online accounting to Claude, ChatGPT and Copilot. 75 tools, OAuth 2.1, EU-hosted.
AI for Tally Prime and Tally ERP 9. Hosted MCP server to ask your accounts in any language.
Provides access to Avalara Tax Content: TTE configs, jobs, communications, lodging, autorental
MCP server enabling AI agents to manage Bitrix24 features via standardized protocol