Research MCP Servers for ChatGPT

Retractions / research-integrity MCP.

Historical borders and dated map events with source attribution and coverage limits.

RIS tag count, body discarded

KISTI ScienceON OpenAPI literature search & metadata collection (MCP server + CLI)

Model Context Protocol server for Semantic Scholar API

Ground answers in scientific literature. Search full text, evaluate trust, access full-text articles

Grounds LLMs in real Scythian: Proto-Scythian lemmas, etymologies, Ossetian/Khotanese descendants.

Barber & cosmetology exam pass rates, booth rent with open chairs, and Texas licensee counts

Semiconductor fabs, published forecasts and their restatements, each row naming its publisher.

Ranks business software and payment providers by monthly cost at your numbers, AU, UK, US

PM2.5 air pollution by city: worst-first rankings, current air and daily history.

ISRIC SoilGrids MCP.

Research and sources on sortition, citizens' assemblies and democratic reform.

OA-first paper fetcher: DOIs/arXiv IDs to local PDFs + metadata via Open Access APIs.

Space company and market intelligence from SNTL Space.

SpaceX MCP — revival of the (dead) SpaceX API.

How Office of the CFO software really works: cited findings on AP, ERP, procurement and more.

Cited economic statistics: World Bank, IMF, BIS, ECB, Caribbean central banks. Verify any figure.

490+ economic & demographic indicators for 218 countries from IMF, World Bank, UN, FRED.

Swedish open data for Claude and other AI assistants - verified, with sources.

Read-only, privacy-safe evidence of physical business presence for AI agents.