"Understanding the Purpose of Research" matching MCP connectors:

Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.

Buy and manage travel eSIM data plans in the conversation. Pay by card (Stripe) or USDC over x402.

Riddle.com is a no-code platform for quizzes, surveys, personality tests, prediction games, interactive graphics, and leaderboards. Use the MCP to create, edit and analyze content.

SEC dilution data, live market data, and news for U.S. equities, with point-in-time as-of queries

Access the latest technology news from NewTqnia.com through the Model Context Protocol. Search articles, retrieve structured news content, browse categories, tags, and timelines, and access authoritative technology reporting for AI assistants, research, and automation.

UK legal research — case law, legislation, Hansard, bills, votes, committees, HMRC, citations

Public, read-only MCP over the complete 64-hexagram I Ching corpus. Deterministic lookup only.

Evidence-gated task verification for AI agents. Decompose goals into acceptance criteria, attach proof (screenshot, curl, file), independent LLM judge accepts or rejects. 24 tools. Hosted remote MCP (streamable-http, OAuth 2.1 + DCR).

Provides a platform-agnostic specification of the technical features every decent website should have

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Access the OpenAlex academic research catalog — 270M+ publications.

Protein research over UniProtKB — search by function, fetch curated records, map IDs, proteomes.

Every figure re-checked against SQL-computed facts; unsupported questions refused with the reason.

Search and trace US federal rules across the Federal Register, eCFR, and Regulations.gov.

Search and query the Eurostat catalogue — EU economy, demography, trade, and NUTS regional data.

Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.

Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.

A portable knowledge-graph memory you pass in and get back. No database. 4 of 6 free.

Dimensional weight, parcel fit, landed cost and freight class. 4 of 6 tools free.