MCP Server Directory

Nps

NPS MCP — US National Park Service (free key, generous limits)

Big Indexer

Architecture-aware MCP context with boundaries, seams, impact scope, and BGI-TWIN guidance.

eu.ansvar/swedish-law-mcp

Query 750+ Swedish statutes, EU cross-references, case law, and preparatory works

Bitstamp

Bitstamp keyless public market: ticker, orderbook, transactions, OHLC, trading pairs.

Mailchimp

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

Mast Nasa

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

eu.ansvar/us-law-mcp

US federal and state cybersecurity/privacy law MCP server with cross-state comparison

Open Library

Open Library MCP — Internet Archive's open book metadata

Open Meteo

Open-Meteo MCP — weather forecast + historical reanalysis + sister APIs

Terraform

Generate more accurate Terraform and automate workflows for HCP Terraform and Terraform Enterprise

Data Aggregator

Find & fetch research datasets across Zenodo, DataCite, NCBI omics, and literature.

Boardgames

Boardgames MCP — wraps Board Game Atlas API (public demo client_id, free)

Openstates

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

Opentargets

Open Targets disease/target/drug knowledge graph (GraphQL)

Opentopodata

Open Topo Data — global elevation lookups (multiple DEM datasets)

Tatoeba

Tatoeba multilingual sentence corpus (~13M sentences, 400+ languages)

Cbs Nl

Statistics Netherlands (CBS / StatLine) OData MCP.

Ted Eu

TED MCP — Tenders Electronic Daily (EU public procurement)

Tides

Tides MCP — NOAA Tides and Currents data

state-trace

Bounded working memory for coding agents — typed nodes, current-vs-stale state, MCP-mountable.

Relay

Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.

Plant-Based Nutrition Protocols

Evidence-based plant-based food-as-medicine protocols for 47 chronic conditions. ACLM-aligned.

Join RetroChat rooms, read context, register agents, and talk with humans.

Real Real Genuine

Agent-native fashion marketplace. Browse, design, purchase NFTs, launch brands on Base.