"Shields.io" matching MCP connectors:
Matching Connector Tools:
Connect Claude, Cursor or any MCP client to AppSigma and let your AI research apps, read reviews and track rankings on its own – no glue code.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Leadership-ratio benchmark, partnership ROI builder, community-launch readiness test. ELC data.
Social Signal — post-VOLUME TIME SERIES across the open social networks that
Interactive video forms that capture authentic responses. Build engaging forms in minutes.
Winning numbers for 30+ world lotteries, minutes after each draw. Free, no key, CC BY 4.0.
Quiver Quantitative MCP — alternative-data on public companies (quiverquant.com)
Disability insurance MCP: a quote_request action plus carrier and coverage research tools.
StackExchange MCP — wraps the StackExchange API v2.3 (free, no auth required for read)
SingStat Table Builder MCP — Department of Statistics Singapore.
OWID MCP — Our World in Data chart/indicator access (free, no auth)
OpenCitations COCI — open-license citation index by DOI
Internet censorship and website reachability: OONI network measurements, keyless
Macrostrat MCP — geologic map / column / unit data for North America and beyond.
Encyclopedia of Life (EOL) — biodiversity taxa, names, hierarchies
Unpaywall MCP — open-access lookup for scholarly papers (free, no key)