RFC Editor MCP.
Free
1,838 MCP servers
Works with Claude CodeBy pipeworx-io
Roblox MCP.
Free
SAM.gov MCP — Federal contract opportunities and entity registration data
Free
South African Reserve Bank (SARB) Web API MCP. Keyless.
Free
SBIR MCP — wraps the SBIR.gov public API (free, no auth)
Free
Science Feeds MCP.
Free
scream-void MCP — wraps StupidAPIs (keyless — no credential needed)
Free
Scryfall MCP — Magic: The Gathering card database.
Free
Semantic Scholar Academic Graph MCP.
Free
SendGrid MCP — wraps SendGrid v3 API (api.sendgrid.com/v3)
Free
SEO Keywords (Google Ads volume) MCP — exact Google Ads search volume via
Free
SerpApi MCP — wraps SerpApi (serpapi.com) search engines
Free
Shodan InternetDB MCP — wraps Shodan InternetDB (internetdb.shodan.io)
Free
Snov.io MCP — B2B email finder + contact enrichment + domain search (snov.io)
Free
Sports Game Odds MCP — wraps the Sports Game Odds API (sportsgameodds.com)
Free
Sports MCP — wraps TheSportsDB API (free tier, test key 3, no auth required)
Free
Steam Web API MCP.
Free
STRATZ Dota 2 MCP.
Free
take-the-meeting MCP — wraps StupidAPIs (keyless — no credential needed)
Free
tarot-draw MCP — wraps StupidAPIs (keyless — no credential needed)
Free
Tarot MCP — wraps tarotapi.dev (free, no auth)
Free