"General web search assistance" matching MCP servers:

Enables AI agents to search and fetch high-quality information from multiple sources, including general web APIs, Wikipedia, arXiv, Hacker News, Stack Exchange, and Crossref, with optional pro-mode deep research and clean markdown page extraction.

Web search (embedded SearXNG), content extraction, and library docs indexing with hybrid search. No API keys required.

Enables AI assistants to perform real-time web and academic searches using Perplexity's Sonar API.

Enables unified searching across Google Scholar, Google Web Search, and YouTube with enterprise features like caching, rate limiting, and monitoring. Supports simultaneous multi-source searches with filtering options for academic papers, web content, and videos.

Deep Research infrastructure for AI agents. Search the web, read pages incrementally, follow source links, and collect relevant evidence across multiple sources. Web search runs through your own SearXNG instance, while the agent remains in control of research planning and reasoning. Cluefinch runs locally over MCP stdio.

An MCP server for the Zotero Web API v3 that lets you search, read, and write items, collections, tags, and notes in a Zotero library, supporting literature-review workflows.

Connect AI assistants to your Gramps Web family tree. Search and edit genealogy records, explore ancestors, descendants, relationships and timelines, and read document scans with vision-capable models. Includes guided research workflows, source citations, read-only mode, and privacy-aware media previews. Install with Docker or a Claude Desktop bundle.

Enables searching Google Scholar papers with year filtering, deduplication, and proxy support. Also provides paper detail retrieval, TF-IDF relevance analysis, and chart generation via MCP tools.

Provides AI agents with 12 real-time tools for search synthesis, grounded research dossiers, claim verification, citation generation, sentiment analysis, expert ranking, timeline creation, and competitive landscape mapping over Streamable HTTP or stdio.

Search 200M+ patents and scientific literature in natural language using PatSnap's global R&D intelligence database.

An MCP server that guides Copilot to version-correct documentation and source code for Industrial Ecology Python packages, enabling reliable, environment-aware coding assistance for LCA workflows.

Enables read and write access to a Zotero library via its Web API, allowing search, create, update, and delete of items, notes, and collections.

Vedic astrology MCP server providing 6 tools: horoscope predictions (200+ life aspects), compatibility match reports with Kuta scoring, Chaldean numerology, raw planet and house chart data, 24 general astro properties, and Ashtakvarga charts. Free tier included with no API key required, premium unlimited tier also available

Enables AI coding agents to run Tavily-powered web searches and asynchronous, cited research through MCP, with tools for focused search, task creation, and status retrieval.

Enables searching scholarly literature across CrossRef, ERIC, Semantic Scholar, and OpenAlex, and retrieving open-access PDFs via Unpaywall.

MCP server for searching Chinese academic literature from CNKI Space, returning metadata such as title, authors, year, and links, and retrieving abstracts and degree details. Enables agents to query CNKI without an account.

MCP server providing agentic tools for academic paper search, with support for OpenAlex API and optional API keys.

Provides AI assistants with access to the Adzuna Job Search API to search millions of job listings, analyze salary data, and research top employers across 12 countries with comprehensive filtering options.

Enables to search academic papers in Japanese and English, inspect availability of full text, and download public PDFs locally.

Serves citable mechanical-engineering reference data — ISO 286 limits and fits, ISO 2768 general tolerances, typical material properties, and published process feasibility limits — as queryable tools for an MCP host. It reports only what the standards specify, refusing out-of-scope or unverifiable values with a stated reason instead of approximating.