Research MCP Servers for HTTP / API

Science Feeds MCP.

Semantic Scholar Academic Graph MCP.

UNHCR Refugee Data Finder MCP (keyless).

USGS Water Services (NWIS) MCP.

Reviews of arXiv papers for AI agents: verdicts, claims, flaws, compiled records, citation graphs.

Market research and competitive intelligence for startup ideas - every finding source-linked.

Free primary-source APIs across 8 categories, with provenance envelopes.

US patents, applications and trademarks with full claims, owners, drawings and live USPTO records.

Facts on Tomsk region businesses by tax ID: money, taxes, debt, status, with source and date.

Read and manage the competitors, signals, and weekly briefs in your probr workspace.

Live ClinicalTrials.gov oncology trial comparison around an asset, plus landscapes and CI briefings.

Cite or capture a web page; installs the capture extension in Firefox and Chrome.

Public data API with ML enrichment — SEC EDGAR, FRED, NOAA, EPA, USGS. 404 endpoints.

Search 36M+ PubMed biomedical articles and ClinicalTrials.gov studies.

Search biomedical literature, get article details, find related articles, and explore MeSH terms

US public-records intelligence for AI agents — companies, SEC, courts, spending, licenses.

Quanta Magazine deep-science articles. $0.01/query. Register in-session — free testnet funds.

Create, edit and publish surveys and AI interviews, then read responses and reports.

Spot pre-launch products before they trend. Search the web and tech sites, extract and parse pages…

Free MCP window into a live autonomous machine-economy experiment: telemetry, hypothesis scoreboard.

Cited research MCP (MCP+agent infra): brief, lookup. Fail=$0.