"Semantic Web" matching MCP servers:

MCP server for querying the Semantic Scholar Academic Graph API, enabling paper search, author lookup, citation tracking, and paper recommendations.

Enables searching and retrieving academic papers, authors, citations, and recommendations from Semantic Scholar via MCP.

Provides AI agents with tools to detect website tech stacks, enrich company profiles, monitor sitemaps for new or changed URLs, check URL indexability, and retrieve EU fuel prices as clean JSON, billed per result.

Zero-auth multi-source research MCP server that enables web search, reading URLs, PDFs, GitHub repos, and querying Hacker News, Stack Overflow, Semantic Scholar, and YouTube transcripts without API keys.

Enables users to search academic papers, retrieve paper and author details, explore citation and reference networks, and get paper recommendations via the Semantic Scholar API. It also supports batch operations, field customization, and authenticated or unauthenticated access.

Enables users to search and retrieve academic paper data, author profiles, citation networks, and paper recommendations via the Semantic Scholar API.

Enables users to search for and retrieve academic papers, author profiles, citation and reference networks, and paper recommendations, with batch operations, field customization, and rate-limit-aware access.

Enables users to search papers, retrieve author profiles, explore citation networks, get recommendations, and perform batch lookups through the Semantic Scholar API.

Enables users to search and retrieve academic paper metadata, author profiles, citation and reference networks, snippets, and paper recommendations through a FastMCP interface.

Enables searching academic papers, retrieving paper and author details, exploring citation networks, and receiving recommendations via the Semantic Scholar API.

Enables searching and retrieving academic papers, author profiles, citation networks, references, and paper recommendations through the Semantic Scholar API. Supports batch lookups, snippet search, and customizable field selection with built-in rate limiting and optional API key authentication.

Enables users to search and retrieve academic paper data, author profiles, citation and reference networks, and paper recommendations through the Semantic Scholar API, including batch lookups and snippet search.

An MCP server for querying the FDSN Web Service Event APIs of multiple seismological datacenters and retrieving earthquake information as JSON.

Enables AI assistants to search Twitter/X, YouTube, Reddit, Google, app-store listings, and 100+ other public web data endpoints via natural language, with prepaid credit or per-call USDC payment and no account or OAuth required.

Delivers comprehensive company intelligence in a single tool call, aggregating profiles, tech stacks, key people, news, and corporate data from any domain or company name. Sources data from Wikipedia, GitHub, OpenCorporates, and web scraping to provide structured business insights using only free public APIs.

A read-only FastMCP server for academic research that lets agents search papers, inspect metadata, follow citation graphs, generate BibTeX, and read full texts of open-access PDFs via semantic scholar, OpenAlex, arXiv, DBLP, and Crossref.

Searches and retrieves academic papers from open access sources like arXiv, Semantic Scholar, and PubMed, with full text access via arXiv PDFs, PubMed Central, and Unpaywall.

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

Unified API for Government Data and Web Scraping

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.