Recently added agent tools.

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

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

Metals API MCP — wraps Metals-API (metals-api.com)

MetaboLights MCP — EBI's metabolomics study repository.

MET Norway weather (api.met.no behind yr.no) — global forecast, sunrise, ocean

NLM MeSH (Medical Subject Headings) MCP.

Merriam-Webster MCP — wraps the Merriam-Webster Collegiate Dictionary and

mercury-number MCP — wraps StupidAPIs (requires X-API-Key)

mempool.space MCP — Bitcoin block explorer + mempool/fee stats

MedlinePlus MCP — NIH consumer health info

MCP server for medicare-coverage

Medical codes MCP.

Medicaid drug utilization by NDC, managed-care enrollment and state enrollment operations from CMS

Mediastack MCP — wraps Mediastack API (api.mediastack.com/v1)

MDN Search MCP

Maryland MVA: registered vehicles and EV/plug-in hybrid counts by county and ZIP, monthly

MBTA MCP — Boston real-time transit via the MBTA v3 API (api-v3.mbta.com)

Maven Central MCP — Java/JVM artifact registry

Math.js MCP — wraps the mathjs.org API (free, no auth)

Materials MCP — computed (DFT) materials structures & thermodynamic properties.

Mastodon MCP — public Mastodon data via mastodon.social (no auth required)

MAST (Mikulski Archive for Space Telescopes) — Hubble/JWST/Kepler/TESS

market-spread MCP — cross-venue prediction-market landscape scanner.

Market Recap MCP — a one-call 'what happened in markets' snapshot.

Markdown utilities MCP.

Marine MCP — wraps marine-api.open-meteo.com (free, no auth)

MapTiler MCP.

Mapbox geocode, directions, matrix, isochrones, map-matching, tilequery, static URL.

Manifold Markets MCP.

MalwareBazaar MCP — abuse.ch malware sample database (free, key required)

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

Mailchimp MCP Pack — manage audiences, campaigns, and members via Mailchimp Marketing API.

magic-8-ball MCP — wraps StupidAPIs (requires X-API-Key)

Madrid Events MCP.

macvendors.com MCP — MAC address (OUI) → hardware manufacturer lookup.

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

macro-snapshot MCP — the state of the economy in one call.

Song lyrics lookup via lyrics.ovh

Luchtmeetnet MCP — official Netherlands air quality (RIVM Luchtmeetnet, api.luchtmeetnet.nl)

Lorem MCP — wraps loripsum.net (free, no auth)

Lobsters MCP — stories and discussions from lobste.rs

ListenBrainz MCP.

Podcast directory search + best podcasts + recommendations via Listen Notes. Free key required.

LinkedIn Ads MCP Pack

linkedin-humblebrag MCP — wraps StupidAPIs (requires X-API-Key)

Linear MCP — wraps the Linear GraphQL API (OAuth)

Lichess public API: players, ratings, eval, tablebase, opening explorer

Open-source licenses MCP (SPDX).

LibriVox public-domain audiobooks (~17000 titles in dozens of languages)

LibreTranslate MCP — open-source machine translation (BYO endpoint)