"Open-Source MCP Server in Python with PostgreSQL and OAuth 2.0" matching MCP servers:

Federated, license-verified search across open-access museum collections — currently The Met, Cleveland, AIC, Wikimedia Commons, and Europeana, with more being added. Strict-default-deny rights gate accepts only CC0 / Public Domain Mark, returning reuse-safe artwork with citations in three styles.

A Model Context Protocol (MCP) server for the Open Library API that enables AI assistants to search for book information.

Connects AI assistants to the Open Library API for searching books and authors, retrieving metadata, and comparing works.

Provides access to Internet Archive's Open Library metadata, enabling queries about books, authors, and subjects via natural language through the Pipeworx gateway.

Read-only MCP server that runs inside Calibre as a plugin, exposing the live Calibre library for inspection, search, metadata, and duplicate detection via Streamable HTTP.

MCP server that gives AI agents access to the world's public domain library. Search, read, and navigate books and audiobooks from Project Gutenberg and LibriVox.

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Enables querying genealogical records, archive statistics, historical weather, and full-text transcriptions from Open Archives via natural language.

MCP server that enables searching books by author via Open Library API and searching keywords inside local text files.

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

Provides AI assistants with access to search, explore, and analyze over 3 million collection objects from the Smithsonian Institution's museums. Enables finding objects currently on exhibit, retrieving detailed metadata, high-resolution images, and 3D models from America's national museums.

A comprehensive MCP server for calculating Jewish prayer times (zmanim) using the python-zmanim library, supporting multiple halachic opinions and global locations.

Exposes 97 official Shanghai Library open data APIs and the Sou-Yun poetry database (1.99 million poems) as 12 MCP tools, covering genealogy, ancient books, calligraphy, historical buildings, and more. Enables MCP clients to query these datasets using natural language.

Enables browsing, searching, and downloading Pixiv content including illustrations, rankings, recommendations, and user bookmarks. Supports intelligent batch downloads with automatic Ugoira-to-GIF conversion and OAuth 2.0 authentication.

Enables searching 14.5M Smithsonian Open Access objects, retrieving CC0 images, and exploring museum collections via MCP with 6 tools.

An MCP server that enables searching books and authors, fetching editions, browsing subjects, and resolving cover images from Open Library.

MCP server for searching and accessing historical Austrian newspapers from ANNO, providing full-text search, snippet extraction, and OCR text download.

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

Searches top design platforms like Dribbble and Behance to provide UI inspiration, color palettes, and layout patterns via the Serper API. It allows users to retrieve visual references, articles, and style guides directly within any MCP-compatible client.

Enables Korean Saju (Four Pillars of Destiny) calculation and myeongni-hak glossary lookup via MCP, allowing AI clients to compute accurate saju analysis and look up fortune-telling terms.