MCP Server Directory

Email infrastructure and authentication for developers: domains, inbox routes, auth apps, deploys.

EmailOctopus MCP by usefulapi io.usefulapi/emailoctopus

Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.

Local-first AI agent security evidence and approval workflows through HOL Guard's stdio MCP server.

three.ws 3D Studio (free) io.github.nirholas/threews-3d-studio-free

Free text/image → 3D: generate, rig, avatar-ify, and refine GLB models. No auth, no payment.

MCP server for reading, editing, and playtesting RPG Maker MV projects

Scaffold an Express 5 + TypeScript backend: database, auth, optional Next.js front end.

Domain RDAP MCP io.github.Lulu-The-Narwhal/domain-rdap-mcp

Free, keyless domain registration lookup via RDAP: registered, available, registrar, expiration.

Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.

adplane ai.adplane/google-ads

Google, Meta and Microsoft Ads in Claude or ChatGPT: reports and changes. New items start paused.

PostgreSQL security for AI agents: CVEs, yanked releases, exploits, and upgrade paths

devstack-mcp io.github.IsaiahDupree/devstack-mcp

Dev-registry data: npm/PyPI/Docker/VS Code packages, dep graphs, vulns, 50+ ecosystems.

Safely manage repository-scoped issues across Linear, GitHub Issues, and Jira Cloud.

toffu ai.toffu/toffu

AI marketing platform your agent runs end to end: ads, analytics, content, and reports.

Arlet dev.arlet/mcp

Create, deploy, and operate MCP servers directly from your GitHub repositories.

dokumendiregister.ee — Estonian public-authority documents io.github.Nimistu/dokumendiregister-mcp

Estonian public-authority document registers: one search across all, docs linked to companies.

Vibes-Coded Agent Security and Commerce Tools io.github.doteyeso-ops/mcp-server-vibes-coded

Agent supply-chain security, scanner consensus, x402 reliability, and commerce MCP tools.

Manage Proxmox VE via Cursor: QEMU, LXC, storage, HA, firewall, access.

Dukon AI — BILLZ store analytics com.dukonai/billz

BILLZ (Billz) retail store analytics: revenue, profit, stock, top products, customers, reports

Search books and authors on the Internet Archive's Open Library

Air Quality MCP io.github.Lulu-The-Narwhal/air-quality-mcp

Free, keyless real-time air quality (US AQI plus PM2.5, PM10, ozone, NO2, SO2, CO) for any city.

19 pay-per-call data tools for AI agents: crypto/DeFi, web, PDF, FX, weather, DNS. x402 on Base.

A safe, read-only, authorized audit of one host you own: DNS, ports, TLS, HTTP hygiene.

Governance MCP server for agent-maintained knowledge bases (OKF): git-backed writes, search, lint.

Economy Intel MCP io.github.selflabbs/economy-intel-mcp

Macro data for AI agents: GDP, inflation, unemployment and more (World Bank, US BLS). No keys.