"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP servers:

Provides manufacturing demo data across procurement, production, quality, warehouse, and finance categories via MCP Streamable HTTP, enabling LLMs to retrieve mock datasets.

Enables interaction with Grocy's API through MCP, allowing management of grocery inventory, shopping lists, and household tasks via natural language.

Enables MCP clients to interact with the Crewmeister API over local stdio, covering operations for members, teams, time tracking, salary exports, and related platform resources.

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

MCP server for querying employee data via tools like get_employees and get_employee_by_id. Serves as a proof-of-concept for integrating Pega applications with AI agents.

MCP server that provides mock APIs and deterministic seed data for ERP/OMS, WMS, and CRM systems, enabling supply chain data exploration and integration testing.

Exposes internal company services as LLM-callable MCP tools, enabling AI agents to perform business operations like customer management, order processing, and support ticketing through natural language.

Enables AI assistants to explore and query SAP BW/4HANA modeling objects and metadata, such as InfoAreas, InfoObjects, ADSOs, CompositeProviders, and Queries.

A Model Context Protocol server that facilitates seamless communication between ABAP systems and MCP clients for managing ABAP objects, transport requests, and code analysis. It acts as a wrapper for the ABAP ADT API to enhance the efficiency of ABAP development workflows.

Enables MCP clients to work with SAP systems through development-tool APIs for object search, source retrieval and editing, syntax checks, activation, transports, debugging, refactoring, Git operations, and analysis within a single SAP session. Large results can be retrieved through paged reads.

Enables MCP clients to search and execute 360 operations across Holded's accounting, sales, inventory, contacts, CRM, projects, team, calendar, inbox, and developer APIs. Supports read and write calls with an API key, including a read-only mode.

Enables pulling public Oracle Fusion Recruiting and Taleo career-site job postings as structured JSON, including locations, skills, pay ranges, and apply URLs. It also supports career-site discovery, scheduled new-posting monitoring, and Markdown output for AI assistants.

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

An MCP server that facilitates seamless interaction with SAP ABAP systems to manage development objects, transport requests, and source code. It provides a comprehensive suite of tools for performing syntax checks, object searches, and code modifications via the ADT API.

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

Enables AI assistants to manage employee data through a REST API with full CRUD operations. Provides tools to create, read, update, and delete employee records via the Model Context Protocol.

Provides tools to interact with Odoo 19's External JSON-2 API, enabling CRUD operations and complex queries on Odoo databases with multi-company support.

Exposes a curated subset of the Officegest API v2 (22 CRUD tools) for managing clients, sales, and stock to AI clients like Claude Code and Claude Desktop.

Provides complete FreshBooks integration with 87 tools covering accounting, invoicing, time tracking, expense management, client/project management, and financial reporting through OAuth2 authentication.

An MCP server for HiBob's Workforce Planning API, enabling management of planned positions, openings, and budgets. It exposes read and write tools for workforce planning data, complementing standard HRIS integrations.