MCP servers

SBIR MCP — wraps the SBIR.gov public API (free, no auth)

Science Feeds MCP.

Scryfall MCP — Magic: The Gathering card database.

SecurityTrails MCP — wraps SecurityTrails API (securitytrails.com)

US Senate Lobbying Disclosure (LDA) MCP.

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

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

ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)

CDS SIMBAD — astronomical object database (~14M objects) via TAP/script

Spaceflight News MCP.

Speedrun.com MCP — wraps the Speedrun.com API v1 (speedrun.com/api/v1)

Sports Game Odds MCP — wraps the Sports Game Odds API (sportsgameodds.com)

startup-oracle MCP — wraps StupidAPIs (requires X-API-Key)

RxNorm MCP — wraps the NLM RxNav REST API (free, no auth)

South African Reserve Bank (SARB) Web API MCP. Keyless.

Science MCP — free science data APIs

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

SEC Form D fundraising intelligence.

Semantic Versioning (semver) MCP.

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

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

shakespeare-insult MCP — wraps StupidAPIs (requires X-API-Key)

simap MCP — Swiss public procurement tenders and awards (keyless).

Skiddle MCP.

Social Signal — post-VOLUME TIME SERIES across the open social networks that

Space Feeds MCP.

SPDX open-source license list with full text

Sports Feeds MCP.

StackExchange MCP — wraps the StackExchange API v2.3 (free, no auth required for read)

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

SeatGeek MCP.

SEC Regulations MCP — US securities regulations (17 CFR).

Sefaria MCP — the free digital library of Jewish texts.

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

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

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

Shodan MCP — wraps the full Shodan REST API (api.shodan.io)

Singapore Government Procurement MCP — GeBIZ tender awards (keyless).

Slack MCP Pack

ISRIC SoilGrids MCP.

Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)

Spoonacular food API: recipes, nutrition, ingredients, meal plans. Free 150/day.

Spotify MCP — Web API via client_credentials OAuth

Statistics Estonia (andmed.stat.ee) PxWeb MCP. Keyless.

StatCan MCP — Statistics Canada (StatCan) time-series via the Web Data

Shopify MCP Pack — wraps the Shopify Admin REST API (2024-01)

Statistical Office of the Republic of Slovenia (SURS) — SiStat PxWeb MCP.

Swiss National Bank (SNB) data portal MCP. Keyless.

South Africa Government Procurement MCP — National Treasury eTenders / OCPO (keyless).

Spain public procurement MCP — PLACSP tender notices (keyless).