"How to obtain an API key" matching MCP servers:

Every other colour API tells you what goes together. Colour Memory tells you what it means, where the evidence ends, and what it must not claim. 47,515 hand-researched records, graded A–E, every result cited. 91 specialist tools built for agents that need precision, not guesses. Direct MCP: https://api.colourmemory.com/mcp — no signup, no key for the free tools (10 calls).

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.

Enables AI agents to obtain a Chinese Four Pillars (BaZi) birth-chart reading — covering personality, career, love, wealth, and health — from a single HTTP request containing just a Gregorian birth date, with no installation, account, or API key required.

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.

Provides Islamic prayer times, Qibla direction, and Hijri calendar conversion using the Aladhan API. No API key required.

An MCP server that draws tarot cards from the 78-card deck and interprets them for your situation, using StupidAPIs with an X-API-Key required.

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.

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.

An MCP server that connects Claude to the Ravelry API, letting knitters and crocheters search for patterns, find yarn, and calculate how much to buy — all through natural language.

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

Calculates Vietnamese Tử Vi horoscope charts, generating structured JSON with Thiên Bàn and Địa Bàn, transit analysis, and local persistence via SQLite.

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.

This MCP server provides tools to search for songs, artists, and random records from the Bide & Musique catalogue. It offers read-only access to tens of thousands of French songs with no authentication needed.

MCP server for lyrics.com that enables searching songs by lyrics or title and retrieving full lyrics, with no API key required.

An MCP server that provides access to the Library of Babel, allowing users to retrieve exact page contents by address, search for text to find its location, and generate random pages.

Searches Danbooru for anime/game characters and their associated tags, providing tools to retrieve character profiles, co-occurring tags, wiki descriptions, and tag implications.

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.

An MCP server that enables searching tracks and fetching lyrics, including time-synced LRC lyrics, from LRCLIB without requiring an API key.

An MCP server that gives AI agents ex-Yugoslav cultural context, resolving cultural references with accurate quotes, attributions, and slang meanings from a citable database.