MCP Server Directory

Arxiv io.github.pipeworx-io/arxiv

arXiv MCP — preprint server search (free, no auth)

Books io.github.pipeworx-io/books

Books MCP — wraps Open Library API (free, no auth)

ArchGraph dev.archgraph/mcp

Code intelligence platform for AI agents. 20 tools for architecture, security & impact analysis.

Citybikes io.github.pipeworx-io/citybikes

Citybikes MCP — wraps CityBik.es API (free, no auth required)

Cocktails io.github.pipeworx-io/cocktails

Cocktails MCP — TheCocktailDB API (free, no auth)

Dadjokes io.github.pipeworx-io/dadjokes

Dad Jokes MCP — wraps icanhazdadjoke.com (free, no auth)

Deckofcards io.github.pipeworx-io/deckofcards

Deck of Cards MCP — wraps deckofcardsapi.com (free, no auth)

Defillama io.github.pipeworx-io/defillama

DefiLlama MCP — DeFi analytics from DefiLlama (free, no auth)

Governs what AI agents do: tool calls, SQL, commands, files checked against policy before they run.

Myagi - Open Agent Registry bot.myagi/openagent-registry

Score any website's AI-agent readiness. Open Agent Registry scanner + platform tools.

Disease io.github.pipeworx-io/disease

Disease MCP — wraps disease.sh API (COVID-19 statistics, no auth required)

Exchange io.github.pipeworx-io/exchange

Exchange MCP — wraps the Frankfurter currency exchange API (free, no auth)

Fruityvice io.github.pipeworx-io/fruityvice

Fruityvice MCP — wraps Fruityvice API (free, no auth)

Read-only Shipcheck launch-risk scans for authorized JS, TS, and MCP repos.

Gistemp io.github.pipeworx-io/gistemp

GISTEMP MCP — NASA Goddard Institute for Space Studies Surface Temperature Analysis (free, no auth)

Gong io.github.pipeworx-io/gong

Gong MCP — wraps the Gong API v2 (OAuth)

Greynoise io.github.pipeworx-io/greynoise

GreyNoise Community MCP — internet scanner classification (free tier with key)

Httpcat io.github.pipeworx-io/httpcat

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

Market Spread io.github.pipeworx-io/market-spread

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

Newton io.github.pipeworx-io/newton

Newton MCP — wraps the Newton math solver API (free, no auth)

Nhtsa io.github.pipeworx-io/nhtsa

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

Get on Board com.getonbrd/recruiter

Recruiter-scoped search across Latin America's largest tech talent pool. OAuth-authenticated.

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

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