Find MCP servers that
actually work.

M365 Graph MCP

work-mcps-m365-graph

Manage Microsoft 365 email, calendar, contacts and inbox rules via the Graph API with OAuth 2.0.

Macrostrat

io-github-pipeworx-io-macrostrat

Macrostrat MCP — geologic map / column / unit data for North America and beyond.

Makstat Mk

io-github-pipeworx-io-makstat-mk

MakStat — State Statistical Office of North Macedonia, PxWeb MCP.

Manifold

io-github-pipeworx-io-manifold

Manifold Markets MCP.

Markdown

io-github-pipeworx-io-markdown

Markdown utilities MCP.

Maryland Open Data

io-github-pipeworx-io-data-maryland

Maryland state open data via Socrata SoQL — government, health, transport, budget, environment.

Mdn Search

io-github-pipeworx-io-mdn-search

MDN Search MCP

Medical Codes

io-github-pipeworx-io-medical-codes

Medical codes MCP.

Mesh

io-github-pipeworx-io-mesh

NLM MeSH (Medical Subject Headings) MCP.

Meteors

io-github-pipeworx-io-meteors

Meteors MCP — NASA fireball, near-Earth asteroid, and close approach data

Meteostat

io-github-pipeworx-io-meteostat

Meteostat MCP — historical weather from 11k+ stations (no auth)

Metmuseum

io-github-pipeworx-io-metmuseum

The Metropolitan Museum of Art Collection MCP.

Mfapi India

io-github-pipeworx-io-mfapi-india

MFAPI.in MCP — Indian mutual-fund NAV (net asset value) data.

Moldova Tenders

io-github-pipeworx-io-moldova-tenders

Moldova Government Procurement (MTender) MCP — keyless.

Mychem

io-github-pipeworx-io-mychem

MyChem.info MCP.

Mydisease

io-github-pipeworx-io-mydisease

MyDisease.info MCP.

Myvariant

io-github-pipeworx-io-myvariant

MyVariant.info MCP.

N2yo

io-github-pipeworx-io-n2yo

N2YO MCP — wraps the N2YO Satellite Tracking REST API (n2yo.com)

N8n

io-github-pipeworx-io-n8n

n8n MCP — query your own n8n instance (BYO).

NYC Open Data

io-github-pipeworx-io-data-cityofnewyork

NYC open data via Socrata SoQL — 311, transport, housing, permits, crime, health.

Nasa Cmr

io-github-pipeworx-io-nasa-cmr

NASA CMR (Common Metadata Repository) MCP.

Nasa Power

io-github-pipeworx-io-nasa-power

NASA POWER MCP — Prediction of Worldwide Energy Resources

Nato

io-github-pipeworx-io-nato

Phonetic & Morse code MCP.

Nbp Pl

io-github-pipeworx-io-nbp-pl

Narodowy Bank Polski (National Bank of Poland) Web API MCP. Keyless.

Netherlands Tenders

io-github-pipeworx-io-netherlands-tenders

Netherlands TenderNed MCP — Dutch government public procurement notices (keyless).

Newsapi

io-github-pipeworx-io-newsapi

NewsAPI.org: top headlines, archive search, sources. Free 100/day key.

Newsdata

io-github-pipeworx-io-newsdata

NewsData.io MCP — wraps the NewsData.io global news API (newsdata.io)

Nist Standards

io-github-pipeworx-io-nist-standards

NIST Standards MCP pack

Norges Bank

io-github-pipeworx-io-norges-bank

Norges Bank (Norway's central bank) MCP — exchange rates, interest rates,

Nsi Bg

io-github-pipeworx-io-nsi-bg

Bulgarian National Statistical Institute (НСИ / NSI) — Open Data API.

Obis

io-github-pipeworx-io-obis

OBIS (Ocean Biodiversity Information System) MCP.

Oecd

io-github-pipeworx-io-oecd

OECD MCP — Organisation for Economic Co-operation and Development data

Omdb

io-github-pipeworx-io-omdb

OMDb MCP — IMDB-derived movie / TV / episode data (BYO key)

Open Corporates

io-github-pipeworx-io-open-corporates

OpenCorporates MCP — Global company registry data (free, no auth, rate limited)

Opendosm My

io-github-pipeworx-io-opendosm-my

data.gov.my / OpenDOSM (Department of Statistics Malaysia) — official Malaysian open-data API.

Openfema

io-github-pipeworx-io-openfema

OpenFEMA MCP — US Federal Emergency Management Agency open data.

Openfigi

io-github-pipeworx-io-openfigi

OpenFIGI — Bloomberg open financial-instrument symbology service

Openrouter

io-github-pipeworx-io-openrouter

OpenRouter Models MCP.

Opensensemap

io-github-pipeworx-io-opensensemap

openSenseMap MCP — citizen-science environmental sensor network (opensensemap.org)

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.

Oqmd

io-github-pipeworx-io-oqmd

OQMD (Open Quantum Materials Database) MCP.

Oregon Open Data

io-github-pipeworx-io-data-oregon

Oregon state open data via Socrata SoQL — agencies, business, health, environment.

Osf

io-github-pipeworx-io-osf

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

Overpass

io-github-pipeworx-io-overpass

OpenStreetMap Overpass MCP — programmatic queries against the OSM database

Owid

io-github-pipeworx-io-owid

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

Oxylabs

io-github-pipeworx-io-oxylabs

Oxylabs MCP — Oxylabs Web Scraper API (oxylabs.io)

Oyez

io-github-pipeworx-io-oyez

Oyez SCOTUS MCP.