"Services or tools available for free without requiring an API key" matching MCP servers:

MCP server exposing the complete Placetel Web API v2 with 124 tools for managing telephony services, contacts, calls, and more.

MCP gateway for GREEN-API WhatsApp that lets AI agents send messages, manage instances, and receive notifications via WhatsApp using the Model Context Protocol.

Provides MSP support tools (ticket search, draft response, KB search, update) with a deterministic security guardrail that refuses to draft responses for security tickets based on content scanning, even if mislabeled.

Provides customer lookup, transaction history, knowledge-base search, and ticket management tools to any MCP client.

MCP server that wraps the Evolution API (WhatsApp) as semantic tools for LLM agents, enabling messaging, chat management, group operations, and instance control via natural language.

An MCP-compliant server that enables AI assistants like Claude Desktop to access and analyze Intercom support tickets with full conversation history.

MCP server enabling interaction with ServiceNow API for managing incidents, CMDB, change management, and other ServiceNow operations via natural language.

Enables AI assistants to check order status and prepare versioned address change proposals that require application-owned approval.

Enables MCP clients to search policies, look up bookings, list activities, create booking requests, issue or approve credits, and review audit records under role-based access. It enforces tenant isolation, filters fields by role, strips planted instructions from tool results, rate-limits each key, and writes tamper-evident audit logs.

Enables an agent to operate a single Evolution API v2 WhatsApp instance: read chats and message history, send text, media and polls, and manage groups, contacts, labels, templates, profile, webhooks and chatbots. It supports WhatsApp Web/Baileys, the official WhatsApp Business Platform and Evolution integrations, running locally over stdio or as a hosted server with toolset, policy and read-only controls.

Model Context Protocol server for interacting with the HaloPSA API, enabling AI assistants like Claude to manage tickets, users, and assets in HaloPSA through natural language.

A Model Context Protocol server that enables Claude to interact with WhatsApp through the Evolution API, allowing for message sending, contact management, group operations, and WhatsApp instance administration.

Enables read-only access to synthetic, tenant-scoped knowledge, tickets, and runbooks, plus draft handoff generation, through four MCP tools and a workspace metadata resource.

Enables managing Ozon Seller and Performance APIs through MCP, covering products, stocks, prices, orders, finance, analytics, advertising, reviews, and chat operations.

Enables AI assistants to manage WhatsApp instances, send and receive messages, run campaigns, configure webhooks, manage team members, and view metrics through OAuth-secured MCP tools, with optional message replies on the user's behalf.

Enables interaction with the HaloPSA API for managing tickets, clients, assets, and more through natural language commands in Claude Desktop.

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.

Send WhatsApp messages from any MCP client — text, images and files, plus session management and contact checks. Authenticate by scanning a QR code: no Meta Business approval and no WhatsApp Business account required.

Protects AI support tools with Descope JWT authentication and scope-based authorization, enabling secure customer support operations like refunds with granular access control.

Connects AI assistants to GLPI service desks so they can manage tickets, ITIL objects (problems and changes), assets, knowledge base articles, users, rules and webhooks through natural language. Works with GLPI 10 and 11 via REST API v1 and the GLPI 11 API v2, with read-only and delete guards, idempotent creates, and support for both local (stdio/HTTP) and hosted OAuth deployments.

A comprehensive MCP server for managing Zendesk Support, Talk, Chat, and Guide products, providing tools for tickets, users, organizations, search, and more.

Enables AI assistants to send text, media, pre-approved templates, and interactive quick-reply buttons through Meta's official WhatsApp Business Cloud API, check phone quality ratings, list message templates, and call arbitrary Graph API endpoints.

Privacy-first Telegram MCP server enabling maintainers to triage chats, inspect context, search messages, draft replies, and send authorized messages locally without a cloud relay.

Gives Alexa+ voice access to track household insurance claims, refunds, repairs, and disputes, and to chase them via disclosed AI phone calls while keeping money and legal decisions with the human.

Enables agents and MCP clients to look up shipment tracking status, SAP order sync errors, ServiceNow incident tickets, and internal SOP runbooks through natural-language tool calls, with every execution written to a SQLite audit trail.

MCP-compatible backend that automates ServiceNow incident handling via Microsoft 365 Copilot, offering tools for incident analysis, automation, and job status retrieval.

An MCP server exposing the internal Ticket API to MCP clients, built with FastMCP's OpenAPI integration.

Enables AI agents to search HR policies, create IT support tickets, and send external emails with configurable security levels and human-in-the-loop validation.

Enables HG Insights GTM teams to draft and manage outreach, research accounts, look up customer support data, and access CRM, Pylon, Jira, Weflow, and knowledge base tools through Claude Desktop.

Integrates weather tools with Intercom, providing real-time weather alerts, forecasts, and personalized customer greetings using National Weather Service API data.