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

Enables keyless search and retrieval of millions of openly-licensed Creative Commons images and audio, with ready-to-paste attribution and license-awareness built into every result.

40-tool colour intelligence API for AI agents. Cultural risk, archive-verified colour naming, palette generation, WCAG accessibility, material physics, ecommerce copy, and image generation briefs. 16,682+ named colours across 43 cultural archives.

An MCP server that enables AI assistants to search and retrieve anime figure data, collections, lists, and clubs from MyFigureCollection.net, including partner listings and barcode lookup.

Japanese calendar API for AI agents. Provides Rokuyo, Rekichu, Eto, 24 Solar Terms, and fortune judgments. MCP + REST API.

Enables AI assistants to access South Korean tourism information via the official Korea Tourism Organization API, providing comprehensive search for attractions, events, food, and accommodations with multilingual support.

Provides access to the Ghibli Image Generator API for creating Ghibli-style images using OpenAI models. It enables users to generate stylized artwork through the ghibli_generate_image tool.

An API that exposes Unsplash image search, listing, and random photo capabilities as MCP tools, enabling AI models like Claude to directly interact with Unsplash's services.

Enables AI agents to access and interact with the Sefaria database of Jewish texts, including retrieval, search, and related content.

A server that enables AI models to access Kakao Map features (place search, address lookup, route finding) and Daum search services (web, image, blog, cafe) through Model Context Protocol.

OAuth-protected FastMCP server exposing eight read-only public APIs (currency, weather, art, pets, dictionary, random images, vehicles) via MCP tools, with optional Gemini LLM-based routing for query selection.

A Python MCP server enabling programmatic interaction with Aseprite for pixel art creation and manipulation with features like drawing operations, palette management, and batch processing.

Provides tools to fetch IIIF manifests and retrieve specific image regions or scaled images for analysis. This server enables detailed interaction with International Image Interoperability Framework resources, supporting tasks like image description and transcription.

The MCP server for Divine API's Indian Astrology services, allowing AI assistants to query Vedic astrology data such as Panchang, Kundli, and matchmaking through natural language.

Provides comprehensive access to the ResourceSpace Digital Asset Management API through MCP tools, resources, and workflow prompts, enabling asset management, search, collections, metadata, and administrative operations.

Remote MCP server for Zi Wei Dou Shu / Tu Vi Dau So astrology tools, exposing read-only tools like get_astrolabe, get_horoscope_decades, etc., designed for Railway deployment and OpenAI ChatGPT developer mode.

Fetches books by genre or subject from the Open Library API without requiring an API key, returning titles, authors, and publication years.

A Model-Client-Protocol server that enables users to search the Gallica digital library of the National Library of France and generate structured sequential research reports with formatted citations and relevant images.

Enables searching documents in Gallica, the digital library of the Bibliothèque nationale de France, and generating structured research reports with citations and images.

MCP server for Metacritic that enables searching films, shows, and games, retrieving Metascores and audience scores, and accessing critic reviews with publication details and links, all without requiring an API key.

Enables searching and retrieving classical music works, scores, and recordings from IMSLP via natural language, without requiring an API key or account. It respects IMSLP's crawl policies and reports copyright status per jurisdiction.