ZBS Index What actually exists in applied AI, with the source next to it

MCP servers

Each entry shows what its maintainer published and when the project was last touched. Where a repository has been deleted or archived, that is stated on the entry instead of being quietly left out.

Listed, not yet verified by us (60)

Published to the registry, but we have not yet checked its repository. Treat the entry as the maintainer’s claim only.

  • Schemastore — 35 functions, v0.1.0
    JSON Schema catalog (SchemaStore.org)
  • Schrodingers Boolean — 32 functions, v0.1.0
    schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
  • science — 35 functions, v0.1.0
    Science MCP — free science data APIs
  • Sciencebase — 34 functions, v0.1.0
    USGS ScienceBase catalog MCP.
  • Scrapingdog — 34 functions, v0.1.0
    Scrapingdog MCP — wraps Scrapingdog (scrapingdog.com), a proxy-based web
  • Scream Void — 32 functions, v0.1.0
    scream-void MCP — wraps StupidAPIs (requires X-API-Key)
  • Scryfall — 35 functions, v0.1.0
    Scryfall MCP — Magic: The Gathering card database.
  • sec — 34 functions, v0.1.0
    SEC MCP — SEC EDGAR public APIs (free, no auth)
  • Sec Events — 35 functions, v0.1.0
    SEC 8-K event triage — query our pre-classified mirror of every
  • Sec Form D — 39 functions, v0.1.3
    SEC Form D fundraising intelligence.
  • Sec Regulations — 33 functions, v0.1.0
    SEC Regulations MCP — US securities regulations (17 CFR).
  • Sec Xbrl — 39 functions, v0.1.0
    SEC XBRL MCP — wraps SEC EDGAR XBRL API (data.sec.gov)
  • Securitytrails — 35 functions, v0.1.0
    SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)
  • Sefaria — 34 functions, v0.1.0
    Sefaria MCP — the free digital library of Jewish texts.
  • Semanticscholar — 35 functions, v0.1.0
    Semantic Scholar Academic Graph MCP.
  • Semrush — 37 functions, v0.1.0
    Semrush MCP Pack — SEO analytics via the Semrush Analytics API.
  • Semver — 34 functions, v0.1.0
    Semantic Versioning (semver) MCP.
  • Senate Lobbying — 34 functions, v0.1.0
    US Senate Lobbying Disclosure (LDA) MCP.
  • Send That Email — 32 functions, v0.1.0
    send-that-email MCP — wraps StupidAPIs (requires X-API-Key)
  • Seo Ai Visibility — 32 functions, v0.1.0
    SEO AI-Visibility MCP — does brand X appear in an LLM's answer (GEO / AI-SEO)
  • Seo Backlinks — 36 functions, v0.1.0
    SEO Backlinks MCP — backlink intelligence via DataForSEO Backlinks API
  • Seo Competitors — 32 functions, v0.1.0
    SEO Competitors MCP — domain ranked keywords via DataForSEO Labs (dataforseo.com)
  • Seo Keywords — 32 functions, v0.1.0
    SEO Keywords MCP — search volume & difficulty via DataForSEO Labs (dataforseo.com)
  • Seo Keywords Ads — 32 functions, v0.1.0
    SEO Keywords (Google Ads volume) MCP — exact Google Ads search volume via
  • Seo Serp — 32 functions, v0.1.0
    SEO SERP MCP — Google organic search results via DataForSEO (dataforseo.com)
  • Septa — 36 functions, v0.1.0
    SEPTA MCP — Philadelphia SEPTA real-time transit (www3.septa.org/api, keyless)
  • Serpapi — 37 functions, v0.1.0
    SerpApi MCP — wraps SerpApi (serpapi.com) search engines
  • Serper — 34 functions, v0.1.0
    Serper MCP — wraps the Serper Google Search API (serper.dev)
  • Setlist Fm — 43 functions, v0.1.0
    setlist.fm: concert setlists by artist/venue/date. Free key required.
  • Sf Recpark — 32 functions, v0.1.0
    SF Rec & Park Events MCP.
  • Sgd — 34 functions, v0.1.0
    SGD (Saccharomyces Genome Database) MCP.
  • Shakespeare Insult — 32 functions, v0.1.0
    shakespeare-insult MCP — wraps StupidAPIs (requires X-API-Key)
  • Ship On Friday — 32 functions, v0.1.0
    ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
  • Shodan — 34 functions, v0.1.0
    Shodan MCP — wraps the full Shodan REST API (api.shodan.io)
  • Shodan Internetdb — 32 functions, v0.1.0
    Shodan InternetDB MCP — wraps Shodan InternetDB (internetdb.shodan.io)
  • Shopify — 36 functions, v0.1.0
    Shopify MCP Pack — wraps the Shopify Admin REST API (2024-01)
  • Simap — 34 functions, v0.1.0
    simap MCP — Swiss public procurement tenders and awards (keyless).
  • Simbad — 35 functions, v0.1.0
    CDS SIMBAD — astronomical object database (~14M objects) via TAP/script
  • Singapore Procurement — 32 functions, v0.1.0
    Singapore Government Procurement MCP — GeBIZ tender awards (keyless).
  • Singstat Sg — 34 functions, v0.1.0
    SingStat Table Builder MCP — Department of Statistics Singapore.
  • Sistat Si — 34 functions, v0.1.0
    Statistical Office of the Republic of Slovenia (SURS) — SiStat PxWeb MCP.
  • Smithsonian — 33 functions, v0.1.0
    Smithsonian Open Access MCP.
  • Snb Ch — 33 functions, v0.1.0
    Swiss National Bank (SNB) data portal MCP. Keyless.
  • Social Signal — 33 functions, v0.1.0
    Social Signal — post-VOLUME TIME SERIES across the open social networks that
  • Soilgrids — 34 functions, v0.1.0
    ISRIC SoilGrids MCP.
  • Solscan — 36 functions, v0.1.0
    Solscan MCP — Solana block-explorer API (Pro v2)
  • South Africa Tenders — 33 functions, v0.1.0
    South Africa Government Procurement MCP — National Treasury eTenders / OCPO (keyless).
  • Spaceflight News — 35 functions, v0.1.0
    Spaceflight News MCP.
  • spacenews — 34 functions, v0.1.0
    Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)
  • spacex — 37 functions, v0.1.0
    SpaceX MCP — wraps SpaceX API v4 (free, no auth)
  • Spain Tenders — 34 functions, v0.1.0
    Spain public procurement MCP — PLACSP tender notices (keyless).
  • Spdx License — 35 functions, v0.1.0
    SPDX open-source license list with full text
  • Speedrun — 35 functions, v0.1.0
    Speedrun.com MCP — wraps the Speedrun.com API v1 (speedrun.com/api/v1)
  • Spoonacular — 49 functions, v0.1.0
    Spoonacular food API: recipes, nutrition, ingredients, meal plans. Free 150/day.
  • Sports — 31 functions, v0.1.1
    Sports MCP — wraps TheSportsDB API (free tier, test key 3, no auth required)
  • Sports Game Odds — 33 functions, v0.1.0
    Sports Game Odds MCP — wraps the Sports Game Odds API (sportsgameodds.com)
  • Spotify — 37 functions, v0.1.0
    Spotify MCP — Web API via client_credentials OAuth
  • Squiggle — 37 functions, v0.1.0
    AFL (Australian Football League) fixture, ladder, and crowd-sourced tips
  • Ssb No — 34 functions, v0.1.0
    Statistics Norway (SSB) PxWebApi MCP.
  • stackexchange — 36 functions, v0.1.0
    StackExchange MCP — wraps the StackExchange API v2.3 (free, no auth required for read)

Page 249 of 338

How this page is ordered

Entries are grouped by whether anyone is still working on them, using the date of the most recent push to the repository. They are not ordered by stars, because a star is a bookmark somebody left once and never took back.

Where we have not checked an entry yet, it says so rather than being mixed in with the verified ones.