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

  • 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

  • Reuters Business and Financial

    BACH-AI-Tools
    A
    license
    C
    quality
    D
    maintenance
    Provides access to the Reuters Business and Financial News API to retrieve articles, trending news, and market data. It enables searching and filtering financial content by date, author, category, and keywords.
    20
    MIT

  • defeatbeta-api

    defeat-beta
    A
    license
    Not graded
    quality
    A
    maintenance
    Defeatbeta API is an open-source alternative to Yahoo Finance's market data APIs, designed to provide reliable and high-performance financial data.
    725
    Apache 2.0

  • MCP Weather Tools

    selva1990kumar
    A
    license
    Not graded
    quality
    D
    maintenance
    An MCP server that enables AI assistants to call weather tools, read resources, and use prompt templates for live weather data integration.
    1,270
    MIT

  • fin-products-tools

    hyeonseo2
    A
    license
    Not graded
    quality
    D
    maintenance
    MCP server that provides tools to query Korean financial products (savings, deposits, pensions, mortgages, loans) via the FSS Open API, enabling search by company or product type.
    2
    MIT

  • reddit-search

    uniteum
    A
    license
    Not graded
    quality
    D
    maintenance
    Enables searching Reddit posts, fetching subreddit content, and retrieving post comments without requiring an API key. It uses public JSON endpoints to provide seamless access to Reddit data for LLM-based applications.
    3
    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

  • catalogue-api

    ibraheemmawwal
    F
    license
    Not graded
    quality
    A
    maintenance
    Provides a read-only API over a book catalogue, offering tools to search books, retrieve book details and series, and inspect provenance and source agreement data.

  • icon-search-mcp

    willlaiwk
    F
    license
    A
    quality
    B
    maintenance
    MCP server that finds open-source, commercially-usable icons and returns direct SVG download links, searching over 300,000 icons with license filtering.
    1

  • law-search-mcp

    memorise8
    F
    license
    A
    quality
    C
    maintenance
    Enables searching and retrieving Korean Supreme Court precedents from the law.go.kr Open API, with support for keyword search and detailed judgment text.
    2

  • literature-search-mcp

    PHoenixs57
    A
    license
    A
    quality
    B
    maintenance
    A standalone MCP server that searches multiple scholarly metadata providers (PubMed, Europe PMC, bioRxiv, Crossref, OpenAlex, Semantic Scholar, arXiv), deduplicates results, and returns ranked literature with optional open-access full-text retrieval from Europe PMC.
    3
    1
    Apache 2.0