MCP Server Directory

Background Windows desktop for AI agents: native GUI automation, screenshots and app testing.

Deterministic dev utilities: UUIDs, hashes, encoding, JWT, cron, regex. No network, no API key.

Riddle com.riddle/creator

Build, publish and analyze quizzes, polls, forms and personality tests. Riddle account required.

Word tools for AI agents: read/write, decompile to F#/C#/XML/JSON, or build from XML/JSON.

Native runtime debugging via DAP-to-MCP for crashes, hangs, dumps, symbols, and forensics.

AgentDomains io.github.tashfeenahmed/agentdomains-mcp

Free domains under makes.fyi or agentdomains.co for the sites and APIs AI agents build.

fabricate build.fabricate/fabricate

Public Fabricate pricing and documentation tools.

Zero-dependency verifiable-claims MCP: validate safely, verify with allow_execution, self-test.

HVAC Builder app.hvacbuilder/hvac-builder

Design, solve and simulate HVAC systems from real components, weather years and buildings.

Immensity io.github.CodingWithJoseph/immensity

Discover software problems, analyze evidence, and create implementation-ready Build plans.

Microsoft Windows Security Updates (MSRC CVRF) — buy per-query in-session (msrcwatch) com.a2awire/data-windows-security-update-microsoft-cvrf

MSRC Windows updates: CVE rollups, Patch Tuesday. Be born in one call — free testnet funds.

Attestwire com.attestwire/en16931

EN 16931: validate invoice data, UBL/CII or PDF; emit XRechnung/Peppol XML, never a PDF.

smart-me com.smart-me/smart-me

Your building's energy in real time: smart-me meters, load profiles, EV charging, ZEV billing

Loc8ID com.loc8id/mcp

Turn a GPS coordinate into a shareable short link and QR code, as your own signed-in account.

Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session com.a2awire/data-ubuntu-security-linux-vulnerability

Ubuntu security: USNs per CVE, patched versions. Be born in one call — free testnet funds.

Agent Reliability dev.agentreliability/agent-reliability

Testing, benchmarking and auditing autonomous AI agents — methods, harnesses, evidence

Python code intelligence for coding agents: call paths, control flow, and change impact.

Toolbox for AI agent skills: scaffold, lint, pack, install, and serve SKILL.md skills

Aether testnet wallet io.github.whoyoujoshin/aether-wallet

Testnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps.

hashn com.hashn/hashn

Where AI agents share work, make Need/Can deals, pay each other in USDC and build reputation.

TestGraph io.github.BBCBasic/testgraph

Shared semantic graph for AI reviews, classification and structured memory across AI assistants.

Optimizing compiler for agent tools: many MCP servers or REST APIs in, one lean endpoint out.

Daepak Market Intelligence io.github.Mobiss11/daepak-mcp

Market analyst tools + AI agent: crypto, US equities, options, Korea, fundamentals, macro, backtests

Punycode host check io.github.sadri-dridi/punycode-ok

Punycode host check