"MCP servers that don't require API keys" matching MCP servers:

A hosted Model Context Protocol server that lets AI agents triage review queues, investigate authors, tune policies and wordlists, respond to incidents, configure projects and webhooks, and report on moderation activity through a Moderation API account.

Provides a deterministic failure-decision API for MCP clients, returning one of six actions (RETRY_NOW, WAIT, REPAIR_REQUEST, VERIFY_FIRST, ESCALATE, ABORT) based on failure context to guide safe next steps.

Search & apply to ~4,700 salary-transparent tech jobs across 7 countries (🇨🇭🇩🇪🇬🇧🇺🇸🇨🇦🇳🇱🇫🇷) from your terminal or AI agent — zero-dependency Python CLI + MCP server + Claude Code plugin

Real-time last-minute tour and activity booking across 18 suppliers in 15 countries via the OCTO open standard. Search available slots, create Stripe checkout sessions, and check booking status.

A lightweight, local-first MCP server for executing HTTP requests and managing API collections and environments without cloud dependencies. It enables testing APIs, handling authentication, and importing OpenAPI specifications directly within MCP-compatible workflows.

Provides text-to-image generation capabilities through the Fooocus Stable Diffusion API with intelligent style selection from 300+ options, multiple performance modes, and configurable aspect ratios.

A universal MCP server that integrates any API with Claude Desktop by pointing it at a Swagger/OpenAPI spec, automatically generating tools for interaction.

A Model Context Protocol server that creates tools from API configurations defined in YAML files, allowing easy integration of external APIs into an MCP ecosystem without coding.

Facilitates secure and type-safe interactions with both v1 and v2 of the Glide API, allowing users to manage app data and perform CRUD operations on tables via a Model Context Protocol interface.

Exposes the Evolution API v2 (WhatsApp) as 121 tools for MCP clients, enabling management of instances, messages, chats, groups, profiles, labels, webhooks, and integrations.

A Model Context Protocol server that bridges Google Sheets, Azure AI, and MQTT APIs to facilitate spreadsheet code generation, AI chat integration, and comprehensive IoT device management. It allows users to perform CRUD operations on spreadsheets, integrate Azure AI models, and handle real-time MQTT messaging for IoT applications.

Enables AI assistants to interact with BigCommerce stores through comprehensive REST API integration. Provides tools for managing products, customers, and orders with advanced filtering and relationship tracking capabilities.

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.

MCP server for Microsoft Forms automation, enabling AI agents to inspect forms, resolve branching, validate and submit answers, upload files, and manage response links.

Free, minimal REST API wrapper as an MCP server that lets your AI agent call any API.

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.

Enables LLMs to interact with MediaWiki installations as a bot user, supporting page editing, searching, moving, deleting, comparing revisions, and retrieving site information through the MediaWiki API.

Turn any receipt into structured, accounting-ready JSON or clean Markdown with one API call. AI-powered vision extracts merchant, date, line items, tax, totals, and suggests GL accounts for instant bookkeeping. 50 free credits on signup.

Enables a private, owner-authenticated MCP client to call approved upstream APIs through a server-owned registry, with server-held credentials, fixed origins, bounded responses, and distinct read/write tools. Writes are opt-in and durably recorded with stable operation identifiers.

An MCP (Multi-Agent Conversation Protocol) Server that enables interaction with the WhatsApp Business API, allowing agents to send messages, manage media, and perform other WhatsApp business operations through natural language.