Citybikes MCP — wraps CityBik.es API (free, no auth required)
Free
56,538 MCP servers
Climatiq MCP — carbon footprint calculator with emission factors
Free
Search and analyze ClinicalTrials.gov: trials by keyword/condition/drug/status/phase, one study's…
Free
Close CRM MCP Pack — wraps the Close (close.com) API v1.
Free
CMS Open Data MCP — US Centers for Medicare & Medicaid Services.
Free
Cocktails MCP — TheCocktailDB API (free, no auth)
Free
Coinpaprika MCP — alternative crypto data source
Free
College Scorecard MCP — US Department of Education College Scorecard API
Free
Color utilities MCP.
Free
Wikimedia Commons MCP — Action API for files.
Free
Companies House MCP — UK statutory company registry (BYO key)
Free
EBI Complex Portal MCP.
Free
Congress MCP — US Congress bill/law/member data via the official congress.gov API (Library of…
Free
corporate-apology MCP — wraps StupidAPIs (keyless — no credential needed)
Free
Countries MCP — world country data.
Free
CountryStateCity MCP — wraps CountryStateCity API (api.countrystatecity.in/v1)
Free
CPSC MCP — US consumer-product safety recalls (CPSC, free, no auth).
Free
Cricket MCP — wraps CricAPI (api.cricapi.com) for live cricket data.
Free
Crossref MCP — wraps the Crossref REST API (academic papers, free, no auth)
Free
Crypto Fear & Greed Index MCP.
Free
Crystallography Open Database (COD) MCP.
Free