MCP Server Directory

Openholidays io.github.pipeworx-io/openholidays

OpenHolidays MCP.

Openparliament Ca io.github.pipeworx-io/openparliament-ca

OpenParliament.ca MCP — civic-tech mirror of the Parliament of Canada

Openreview io.github.pipeworx-io/openreview

OpenReview MCP — ML conference submissions and reviews (API v2)

PagerDuty's official MCP server which provides tools to interact with your PagerDuty account.

Openrouteservice io.github.pipeworx-io/openrouteservice

Routing, isochrones, matrix, snap, elevation, geocode via Openrouteservice.

Opensea io.github.pipeworx-io/opensea

OpenSea MCP — NFT marketplace data (v2 API)

Openstates io.github.pipeworx-io/openstates

OpenStates MCP — bills, legislators, votes in all 50 US states

Render HTML/markdown to PDF, export rows to xlsx, and fill AcroForm PDFs.

Opentargets io.github.pipeworx-io/opentargets

Open Targets MCP — disease/target/drug knowledge graph.

Agent-complete localization: extract strings, push keys, AI-translate, pull type-safe TS types.

Opentopography io.github.pipeworx-io/opentopography

OpenTopography global DEM rasters + point queries (free key)

Opentreeoflife io.github.pipeworx-io/opentreeoflife

Open Tree of Life MCP.

Openweather io.github.pipeworx-io/openweather

OpenWeather MCP — wraps the OpenWeatherMap API (openweathermap.org)

Orcid io.github.pipeworx-io/orcid

ORCID public researcher records (works, employment, education)

Osf io.github.pipeworx-io/osf

OSF (Open Science Framework, by the Center for Open Science) MCP.

EPA data: ECHO facility compliance, TRI releases, Superfund, drinking water, and AirNow air quality.

Outlook Calendar io.github.pipeworx-io/outlook-calendar

Outlook Calendar MCP Pack

Outlook Contacts io.github.pipeworx-io/outlook-contacts

Outlook Contacts (Microsoft 365) MCP Pack

Owasp io.github.pipeworx-io/owasp

OWASP MCP — keyless.

exchange-rates-mcp-server io.github.cyanheads/exchange-rates-mcp-server

Convert currencies, get FX rates, and query historical ECB exchange rate data.

Owid io.github.pipeworx-io/owid

OWID MCP — Our World in Data chart/indicator access (free, no auth)

Packagephobia io.github.pipeworx-io/packagephobia

Packagephobia MCP — install-size analysis for npm packages

Packagist io.github.pipeworx-io/packagist

Packagist MCP — PHP / Composer package registry

FBI Crime Data Explorer — UCR estimates, NIBRS breakdowns, hate crimes, arrests, and agency data.