MCP Server Directory

Httpcat io.github.pipeworx-io/httpcat

HTTP Cat MCP — wraps http.cat (free, no auth)

Imgflip io.github.pipeworx-io/imgflip

Imgflip MCP — wraps Imgflip API (free, no auth for template listing)

Jsonplaceholder io.github.pipeworx-io/jsonplaceholder

JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)

Nationalize io.github.pipeworx-io/nationalize

Nationalize MCP — nationality prediction from first name (nationalize.io, free, no auth)

JassWiki — Swiss Jass Authority (AMCP v0.1) ch.jassverband/jasswiki

First production Authority-MCP. W3C VC attested by Jassverband Schweiz.

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

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

Access Aarna's DeFi yield vaults — query NAV/TVL/APY, build transactions, track portfolios.

Onthisday io.github.pipeworx-io/onthisday

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

Pokemon io.github.pipeworx-io/pokemon

Pokemon MCP — wraps PokéAPI (free, no auth required)

Pubchem io.github.pipeworx-io/pubchem

PubChem MCP — NIH chemistry compound database (no auth)

Pubmed io.github.pipeworx-io/pubmed

PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)

Complete Obsidian vault MCP server. 35 tools: notes, search, graph, tags, canvas.

Qrcode io.github.pipeworx-io/qrcode

QR Code MCP — wraps api.qrserver.com (free, no auth)

Radio io.github.pipeworx-io/radio

Radio MCP — wraps Radio Browser API (free, no auth)

Recipes io.github.pipeworx-io/recipes

Recipes MCP — wraps TheMealDB API (free tier, no auth)

Solscan io.github.pipeworx-io/solscan

Solscan MCP — Solana block-explorer API (Pro v2)

Stackexchange io.github.pipeworx-io/stackexchange

StackExchange MCP — wraps the StackExchange API v2.3 (free, no auth required for read)

Swiss Whale Intelligence io.github.alpineflow-io/swiss-whale-intelligence

Multi-asset whale forensics: BTC, ETH, SOL, USDT, tokenized gold. 45 tools, free OAuth tier.

Ukhsa io.github.pipeworx-io/ukhsa

UK Health Security Agency (UKHSA) data dashboard MCP — keyless.

Ukpolice io.github.pipeworx-io/ukpolice

UK Police MCP — wraps the UK Police Data API (free, no auth)

AI agent payment security - spending limits, whitelists, and human approval.

Universities io.github.pipeworx-io/universities

Universities MCP — Hipolabs Universities API (free, no auth)

Wger io.github.pipeworx-io/wger

Wger MCP — wraps wger Workout Manager REST API (free, no auth for read)

Who Gho io.github.pipeworx-io/who-gho

WHO GHO MCP — World Health Organization Global Health Observatory (free, no auth)