Google PageSpeed Insights — runs Lighthouse against any public URL and returns the performance…
Free
1,838 MCP servers
Works with ChatGPTBy pipeworx-io
passive-aggression MCP — wraps StupidAPIs (keyless — no credential needed)
Free
Patents MCP — wraps the USPTO Open Data Portal (ODP) Patent File Wrapper API
Free
Pexels MCP.
Free
PhishTank MCP — wraps PhishTank API (checkurl.phishtank.com)
Free
Phone number validation MCP.
Free
Pixabay MCP.
Free
Earth-observation imagery catalogue from Microsoft's Planetary Computer — search its open…
Free
Slovenia Open Data (podatki.gov.si) CKAN MCP.
Free
Politics Feeds MCP.
Free
Polymarket MCP — prediction-market data via Gamma + CLOB + Data public APIs.
Free
PostHog MCP — wraps PostHog Analytics API (app.posthog.com/api)
Free
POWO (Plants of the World Online, by the Royal Botanic Gardens, Kew) MCP.
Free
Islamic prayer times & calendar MCP (Aladhan API). Keyless.
Free
ProPublica Nonprofit MCP — ProPublica Nonprofit Explorer API (free, no auth)
Free
Prospeo MCP — wraps the Prospeo 'Enrich Person' API (prospeo.io)
Free
ProZorro MCP — Ukraine government procurement (keyless).
Free
PubChem MCP — NIH chemistry compound database (no auth)
Free
PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)
Free
Pulse Verity — crypto index prices that come with a PROOF.
Free
PVGIS MCP — EU Joint Research Centre PV system modeler
Free