MCP servers

Statistics Sweden (SCB) — PxWeb JSON-stat statistical database

JSON Schema catalog (SchemaStore.org)

schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)

Science MCP — free science data APIs

USGS ScienceBase catalog MCP.

Scrapingdog MCP — wraps Scrapingdog (scrapingdog.com), a proxy-based web

scream-void MCP — wraps StupidAPIs (requires X-API-Key)

Scryfall MCP — Magic: The Gathering card database.

SeatGeek MCP.

SEC MCP — SEC EDGAR public APIs (free, no auth)

SEC 8-K event triage — query our pre-classified mirror of every

SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)

Sefaria MCP — the free digital library of Jewish texts.

Semantic Scholar Academic Graph MCP.

US Senate Lobbying Disclosure (LDA) MCP.

send-that-email MCP — wraps StupidAPIs (requires X-API-Key)

SEO AI-Visibility MCP — does brand X appear in an LLM's answer (GEO / AI-SEO)

SEO Backlinks MCP — backlink intelligence via DataForSEO Backlinks API

SEO Competitors MCP — domain ranked keywords via DataForSEO Labs (dataforseo.com)

SEO Keywords MCP — search volume & difficulty via DataForSEO Labs (dataforseo.com)

SEO Keywords (Google Ads volume) MCP — exact Google Ads search volume via

SEO SERP MCP — Google organic search results via DataForSEO (dataforseo.com)

SerpApi MCP — wraps SerpApi (serpapi.com) search engines

Serper MCP — wraps the Serper Google Search API (serper.dev)

setlist.fm: concert setlists by artist/venue/date. Free key required.