"Free APIs and services without commercial fees" matching MCP servers:

An MCP Odoo tools connector/plugin for Claude Cowork and Claude Code. It runs from 10 to 19 and helps make the connection smooth. You just need to downloaded from the marketplace and run: "/odoo-tools:odoo-setup-mcp".

Provides interactive tools to explore AFAS customer data and employee leave information, including bubble charts, leave balance reports, and detailed leave cards.

Provides MCP tools for searching, reading, and drafting Gmail emails, as well as querying SAP OData endpoints with safe read operations and mock mode.

Gives AI assistants direct access to Microsoft Dynamics 365 Business Central via the native WebSocket protocol, replacing OData, APIs, and browser automation. Enables page navigation, data reading/writing, actions, searches, and report execution.

Enables local LLMs to query SAP S/4HANA OData services through typed tools for business partners, sales orders, and purchase orders, returning cleaned, compact data and allowing raw read-only access to other endpoints.

Read-only MCP server for Dynamics 365 Business Central, enabling AI clients to query live ERP data like customers, items, orders, and invoices via GET-only APIs with dual authentication and stdio/HTTP transports.

MCP server for LawPracticeZA, South African legal practice software, providing tools to manage clients, matters, work-in-progress fees, billing, and accounting via the LawPracticeZA API.

Unified MCP server providing business data APIs for Indian users, orders, and business metrics, deployable via Vercel.

Enables AI assistants to read and safely schedule manufacturing work orders, including checking resource availability, finding free slots, booking without overlaps, and reporting utilization or late risks.

Enables AI assistants to interact with Workadu data through natural language, managing orders, customers, services, invoices, payments, assets, and asset movements.

Enables AI agents to interact with 1С:Enterprise and BAS ERP systems through REST and HTTP services, providing tools for searching catalogs, creating documents, and querying stock balances.

Enables AI assistants to integrate with SAP systems via OData REST APIs for querying entity sets, performing CRUD operations, and executing function imports. It features automatic service discovery, CSRF token management, and smart connection handling without requiring the SAP RFC SDK.

An MCP server for Dolibarr ERP/CRM that lets Claude or any MCP-compatible client read and manage thirdparties, commercial proposals, contracts, and invoices directly.

MCP server for Holded API v2, enabling listing and querying of contacts, invoices, purchases, products, services, and payments, with low-level access to any endpoint.

Provides an AI assistant with local tools to manage company profiles, financial records, employees, and notes through MCP clients like Cursor, Claude Desktop, and OpenCode, storing data entirely in local files without cloud services or API keys.

MCP server that exposes MAYO Apollo HRM platform's Foundation, Attendance, and Payroll APIs as AI-callable tools, enabling natural language queries for employee profiles, attendance summaries, and payroll reports.

This MCP server provides comprehensive access to the Mews hospitality platform API, covering customer and company management, reservation operations, financial transactions, account management, configuration settings, and services inventory. It implements the core functionality needed for hospitalit

Enables AI agents to read and operate ERPNext/Frappe systems through HTTP APIs, with safe-mode approval for sensitive operations and complete storage of large request and response payloads.

Enables Money Forward Cloud Accounting operations via API key authentication, including journal entries, voucher attachments, deletions, and office management without OAuth.

Enables natural language interaction with UKG Pro Workforce Management APIs. It detects intent, resolves missing inputs, hydrates related objects, and returns complete, validated operational answers across scheduling, timekeeping, attendance, and more.

Transforms SAP S/4HANA or ECC systems into conversational AI interfaces by exposing all OData services as dynamic MCP tools. Enables natural language interactions with ERP data including querying, creating, updating, and deleting entities through SAP BTP integration.

Enables interaction with SAP ABAP systems via ADT APIs, allowing management of ABAP objects, transport requests, and code analysis through MCP clients.

Enables interaction with Oracle Fusion Cloud HCM REST APIs, providing tools for managing workers, absences, payroll, talent, and other HCM data with configurable write approvals and multiple transport modes.

Enables interaction with SAP ABAP systems through ADT APIs, allowing management of ABAP objects, transport requests, and code analysis via natural language.

MCP server exposing CATAPA's HR & payroll APIs as tools, with auto-generated public API tools and generic private API tools, plus OAuth support and optional remote deployment.

Enables interaction with DATEV Online APIs to upload documents, reconcile account statements, and manage HR payroll data such as employees and absences.

Exposes 48 SAP Ariba APIs as Claude-compatible tools for managing procurement, sourcing, supplier management, and supply chain data. It enables AI agents to interact with contracts, catalogs, and business network transactions through natural language.

Connects AI assistants directly to IBM Maximo environments to discover APIs, inspect schemas, query live data, generate UI code, and create, update, or act on records through OSLC REST and business workflows.

Enables AI assistants to securely connect with SAP ABAP and BTP services, allowing execution of function modules, BAPIs, table reads, and various BTP operations through MCP.

An MCP server that integrates Google Gemini with corporate management APIs to handle employees, clients, and suppliers through natural language. It enables dynamic data retrieval, record creation, and secure document listing without including sensitive data in the initial prompt.