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

  • A
    license
    A
    quality
    B
    maintenance
    A read-only MCP server for Portal.io that enables browsing proposals, users, contacts, and catalog items through secure HMAC-signed API requests.
    6
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    A comprehensive Model Context Protocol (MCP) server that provides complete access to the Recharge Storefront API endpoints. Enables AI assistants to manage subscriptions, customers, orders, and billing through a standardized interface.
    2
    MIT
  • F
    license
    Not graded
    quality
    B
    maintenance
    Enables AI agents to extract structured firmographic data from public LinkedIn company URLs, returning fields like name, industry, size, and headquarters.
  • F
    license
    Not graded
    quality
    B
    maintenance
    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.
  • F
    license
    Not graded
    quality
    C
    maintenance
    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.
  • A
    license
    B
    quality
    B
    maintenance
    MCP server for B2B lead generation and company search using the Generect Live API. Provides tools to search leads, companies, generate emails, and get lead by URL.
    5
    7
    1
    MIT
  • A
    license
    Not graded
    quality
    F
    maintenance
    Enables AI assistants to access and manage HeadHunter job platform data, including vacancies, resumes, negotiations, and employer settings via 167+ tools.
    85
    5
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Find professional email addresses from name + company domain. Tests 15+ patterns against MX records with confidence scoring, with pay-per-call via x402.
    MIT
  • A
    license
    Not graded
    quality
    D
    maintenance
    Enables AI assistants to interact with SalesDrive CRM, allowing order management, product queries, and more through natural language.
    Apache 2.0
  • F
    license
    Not graded
    quality
    B
    maintenance
    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.
    4
  • F
    license
    Not graded
    quality
    C
    maintenance
    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.
    1
  • A
    license
    A
    quality
    A
    maintenance
    MCP server for Zammad that focuses on workflows the standard Zammad API tooling does not cover well — primarily shared drafts with strict reply-HTML validation, fresh signature rendering and German-localised quote blocks.
    3
    11
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    A production-grade MCP server for Zendesk that provides ticket management, search, user/group operations, and knowledge base access with support for local stdio and remote HTTP transports, authentication via API keys or OAuth, and multi-tenancy.
    14
    Apache 2.0
  • A
    license
    A
    quality
    B
    maintenance
    Enables finding and verifying work emails for contacts through a waterfall of provider keys, with per-provider cost attribution and verification after each finder.
    1
    142
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    A read-only MCP server exposing TOTVS support tickets (Portal do Cliente) as tools for LLMs in Claude Code, Claude Desktop, and Cursor.
    11
    MIT
  • F
    license
    A
    quality
    B
    maintenance
    MCP server that connects AI assistants to Perfex CRM via public web forms, enabling lead creation, ticket creation, quote requests, and health checks without API keys.
    4
    1
  • A
    license
    Not graded
    quality
    A
    maintenance
    MCP server for ConnectWise PSA (Manage) enabling ticket management, time entry, and read-only lookups of companies, contacts, and configurations with role-based access control and bring-your-own-API-keys support.
    143
    5
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    MCP server for the Stripe API with 10 tools covering payments, customers, invoices, and subscriptions. Generated with MCPForge. Destructive and financial operations require human approval.
    40
    MIT