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"Web search tools and methods that don't require API keys" matching MCP servers:

  • methods-mcp

    webwebb56
    A
    license
    Not graded
    quality
    D
    maintenance
    Provides MCP tool adapters for Bioconductor methods like limma, DESeq2, and fgsea, enabling statistical analysis of omics data through containerized R execution. It serves as a bridge between MCP clients and bioinformatics tools for reproducible research workflows.
    Apache 2.0

  • CSMAR Web-API MCP

    xuan-wei
    A
    license
    Not graded
    quality
    C
    maintenance
    Enables MCP clients to search, browse, preview, and download CSMAR financial data using institutional IP authentication, no account or password required.
    MIT

  • Thinking Tools

    PranayMahendrakar
    A
    license
    Not graded
    quality
    C
    maintenance
    Provides five rigorous reasoning protocols (debate, red team, audit_argument, threat_model, check_study) that run on the AI you're already using, requiring no extra API keys or costs.
    MIT

  • whed-tools

    Dasistaiden
    F
    license
    Not graded
    quality
    D
    maintenance
    An MCP-native pipeline for collecting structured intelligence on higher education institutions using the WHED schema, enabling scraping, extraction, validation, and saving of profiles.

  • cnki-search

    Biogod2020
    A
    license
    A
    quality
    B
    maintenance
    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.
    2
    MIT

  • Web Research MCP

    infinit3labs
    A
    license
    A
    quality
    A
    maintenance
    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.
    10
    MIT

  • Scientific Tools MCP Server

    shomechakraborty
    F
    license
    A
    quality
    D
    maintenance
    High-value scientific tools for AI agents — literature search (PubMed, arXiv, Semantic Scholar), chemical compound lookup (PubChem, ChEMBL), patent prior art search (USPTO, EPO), GPU spot prices across 4 providers, and real-time earth science data (USGS, NASA, OpenAQ). Per-call billing via API key. Keys issued instantly at https://mcp-site.com/keys/request
    6

  • Naver Search MCP Server

    floatingcloud
    A
    license
    B
    quality
    D
    maintenance
    Provides tools to search Naver services (web, news, blog, etc.) and analyze search trends using Naver DataLab, with all required MCP protocol methods implemented for compatibility with Cursor and Claude Desktop.
    20
    10
    MIT

  • gramps-web-mcp

    Scormave
    A
    license
    Not graded
    quality
    A
    maintenance
    MCP server for Gramps Web. Gives AI agents structured, tool-based access to family trees through the Model Context Protocol. Built with .NET 8.
    9
    AGPL 3.0

  • modou-tools-mcp

    xihongshi567
    A
    license
    Not graded
    quality
    C
    maintenance
    An MCP server for global tech intelligence gathering, offering tools for searching Chinese and English web content, GitHub trending, arXiv papers, HN, Exa, SEC filings, Juejin, Zhihu, Bilibili, and A-share financial reports, all without API keys and with direct China access.
    MIT

  • paper-search

    its-antony
    A
    license
    Not graded
    quality
    D
    maintenance
    Enables searching, downloading, and exporting academic papers from 20+ scholarly sources including arXiv, PubMed, and Semantic Scholar. Supports multi-source concurrent search, citation network tracing, and export to CSV, RIS, and BibTeX.
    MIT

  • search-papers

    Saidiibrahim
    A
    license
    Not graded
    quality
    C
    maintenance
    Enables agents to search, analyze, and explore arXiv academic papers with advanced multi-field search, author lookup, category browsing, citation extraction, and bibliography export.
    45
    Apache 2.0

  • MCP Research Tools

    hippogriff-ai
    A
    license
    Not graded
    quality
    D
    maintenance
    Local-first MCP server that gives Claude Code web search, page reading, video transcription, and image analysis — without paid API keys. Runs SearXNG + whisper.cpp natively on Apple Silicon for zero-cost, low-latency research workflows.
    MIT