MCP Server Directory

Nhtsa io.github.pipeworx-io/nhtsa

NHTSA MCP — wraps the NHTSA vPIC (Vehicle Product Information Catalog) API (free, no auth)

Nih Reporter io.github.pipeworx-io/nih-reporter

NIH RePORTER MCP — every NIH-funded research project (free, no auth)

nouel io.github.pipeworx-io/nobel

Nobel MCP — wraps the Nobel Prize API v2 (free, no auth)

nominatim io.github.pipeworx-io/nominatim

Nominatim MCP — wraps OpenStreetMap Nominatim geocoding API (free, no auth)

Xavio Merchant in.xavio/merchant

Authenticated MCP for Xavio merchants: stories, products, schedules.

npm io.github.pipeworx-io/npm

npm MCP — wraps the npm Registry API (free, no auth)

numuersapi io.github.pipeworx-io/numbersapi

NumbersAPI MCP — wraps numbersapi.com (free, no auth)

Self-hosted GitHub MCP server. PAT auth, stdio transport, transport-agnostic so it works with…

nutrition io.github.pipeworx-io/nutrition

Nutrition MCP — wraps Open Food Facts API (free, no auth)

Foresea Forecasting ink.foresea/forecasting

Forecast future events and scan prediction-market edges.

FastMCP server for surgical queries against a vault knowledge graph (NetworkX node-link JSON).…

Nws io.github.pipeworx-io/nws

NWS MCP — US National Weather Service (no auth)

onthisday io.github.pipeworx-io/onthisday

On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)

Multi-workspace Linear MCP — PAT auth, 57 tools + 3 prompts, substrate enforcement, drop-in.

Open Corporates io.github.pipeworx-io/open-corporates

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

Open Elevation io.github.pipeworx-io/open-elevation

Open-Elevation MCP — terrain elevation by lat/lon (no auth)

Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…

Open Sanctions io.github.pipeworx-io/open-sanctions

OpenSanctions MCP — Global sanctions and PEP data (free, no auth required)

openalex io.github.pipeworx-io/openalex

OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)

FastMCP server for bidirectional sync between personal and team Obsidian vaults.

Openaq io.github.pipeworx-io/openaq

OpenAQ MCP — wraps OpenAQ v2 API (free, no auth required)

CorpusIQ io.corpusiq/multi-source-mcp

Authenticated, user-scoped MCP connectors for 30+ business systems.

Openbeautyfacts io.github.pipeworx-io/openbeautyfacts

Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).

Openfda io.github.pipeworx-io/openfda

OpenFDA MCP — wraps the openFDA API (free, no auth required)