MCP servers using the stdio transport

Servers that speak MCP over standard input and output, the transport used when a client launches the server as a local subprocess. Transport is read from the server's own manifest or code where we can find it; an absent value means we did not find one, not that the server lacks a transport.

39,446 servers tracked browse the full catalogue →
Cr-GH0

Browserless MCP and CLI controls for Chaoxing Learning

stdio C 500t
github NovaLux12/spotify-mcp-server verified — a relayed third-party claim (registry/vendor), not the observatory's own endorsement
NovaLux12

The definitive Spotify MCP server — full non-deprecated Web API coverage, paginated everything, podcast-first, tested end to end

stdio A 500t
RoyAzran

The open-source marketing MCP server -- Google Ads, Meta Ads, GA4, Search Console, Tag Manager, WordPress and more from any MCP client.

stdio C 500t
kh0pper

Modular, agentic framework and MCP platform you self-host. Build and run your own AI agents, connect Claude Code, Claude Desktop, or Cursor as a native MCP connector, self-host your apps, and share over encrypted P2P — on hardware you own, with local or cloud models. Open source.

stdio C 500t
salitronic

Open-source MCP server that lets an AI drive a live session of Altium Designer, and optionally KiCad or EasyEDA Pro, editing the open design in place while you watch. 300+ tools: schematic, PCB, library and project automation, design review, audits, rendering, auto-placement, panelization, autonomous design-plan executor. Apache-2.0.

stdio B 500t
maintainer unknown

Google SecOps SOAR MCP server

stdio B 500t
secure-ssid

Low-token HPE Networking MCP router for Aruba Central, GreenLake, migrations, optional products, RAG, and exact API lookup

stdio C 500t
Stele contributors

MCP stdio server for Stele — named tools over the governed experiential-memory ledger.

stdio A 500t
google

no description

stdio C 499t
github Pantani/tdmcp verified — a relayed third-party claim (registry/vendor), not the observatory's own endorsement
Pantani

TouchDesigner MCP server, describe a visual to Claude, Cursor or Codex and it builds a real, playable node network (audio-reactive, generative, particle, 3D, feedback) with live knobs + MIDI/OSC/DMX, then checks for errors and previews its own work.

stdio B 498t
maintainer unknown

graph8 MCP server - GTM operations for AI agents

stdio B 495t
timmeck

Brain Ecosystem — Self-learning MCP servers for Claude Code (monorepo)

stdio C 492t
Mcp-Brasil

MCP Server para 70 APIs públicas brasileiras

stdio B 491t
cisco-ai-defense

Scan MCP servers for potential threats & security findings.

stdio D 490t
github uber/ADR
uber

ADR secures enterprise AI agents through observability, security benchmarking, and threat detection. Deployed at Uber.

stdio D 486t
maintainer unknown

Python SDK and MCP server for typed Lightbulb business processes, connectors, and custom agentic workflows

stdio C 484t
hritvikgupta

Talk to your cloud — an open-source AI agent that reads your code, operates AWS & GCP, and opens PRs. Self-hostable.

stdio C 480t
github mindstone/mcp-servers verified — a relayed third-party claim (registry/vendor), not the observatory's own endorsement
mindstone

MCP server for Apple Shortcuts via the macOS shortcuts CLI

stdio C 479t
github dreamrec/LivePilot verified — a relayed third-party claim (registry/vendor), not the observatory's own endorsement
dreamrec

Talk to Ableton Live 12 through your AI client. Build, edit, listen, compare, and learn from your choices — 474 tools across 57 domains.

stdio C 474t
kks3800

Control Unreal Engine 5.7 with natural language. A C++ editor plugin + Python MCP server exposing 463 tools for AI assistants (Claude Code, Cursor, Windsurf) to build blueprints, materials, UMG widgets, MetaSounds, behavior trees, EQS, PCG, and more -- heavy WIP, built with Claude.

stdio B 474t