Developer toolsOnline
One
Find, document and execute authenticated API calls across 700+ apps via one MCP server
- GitHub stars
- 12
Online MCP servers
These are online software listings. The country field is a directory template anchor.
Results
717 MCP servers
SecurityOnline
Onepassword
MCP server for interacting with 1Password via the CLI to read and manage credentials.
- GitHub stars
- 81
Health and scienceOnline
Open Health Sync
Read-only access to self-hosted health data: samples, sleep, workouts, nutrition, daily summaries.
- GitHub stars
- 54
Health and scienceOnline
Open Meteo Mcp Server
Global weather via Open-Meteo: forecast, historical, marine, air quality, geocoding, elevation.
- GitHub stars
- 11
Knowledge and memoryOnline
OpenMyMemo
Your AI memory as a local folder you own. Every app shares it; you see and can undo each change.
- GitHub stars
- 22
Other toolsOnline
OpenTakeoff
Construction takeoff for AI agents: load plans, set scale, measure, count, export with provenance.
- GitHub stars
- 716
Health and scienceOnline
Opentargets
Read-only Open Targets: targets, diseases, drugs and evidence by name or ID. No API key needed.
- GitHub stars
- 19
Developer toolsOnline
OpenVibeCoding Read-only MCP
Read-only MCP for OpenVibeCoding runs, workflows, proof, queue, replay, and incident reads.
- GitHub stars
- 207
Search and researchOnline
Openwebninja Mcp
Official MCP server for OpenWeb Ninja APIs - 40+ real-time web data and SERP APIs as MCP tools
- GitHub stars
- 38
Finance and cryptoOnline
Oracle3 prediction-market arbitrage checks
Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.
- GitHub stars
- 542
Developer toolsOnline
OrangePro
Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.
- GitHub stars
- 19
Other toolsOnline
OSCAR
An assistant reads your OSCAR installation (OSC, MIDI, DMX) and drafts interfaces you review.
- GitHub stars
- 192
Developer toolsOnline
Oss Autopilot
Open source contribution manager with PR tracking, issue discovery, and CI diagnosis
- GitHub stars
- 25
CommunicationOnline
Outlook MCP
Microsoft Outlook personal accounts: mail, rules, calendar, contacts, to-do, drafts (76 tools).
- GitHub stars
- 41
Health and scienceOnline
PalmSens Potentiostat
MCP server for PalmSens potentiostats running MethodSCRIPT (EmStat Pico, EmStat4, Sensit, Nexus).
- GitHub stars
- 23
Developer toolsOnline
PartCAD
Inspect, render, test and export the parts and assemblies of PartCAD hardware packages
- GitHub stars
- 510
Other toolsOnline
Pascal 3D Editor
Create, inspect, validate, and save editable 3D building scenes with Pascal's MCP server.
- GitHub stars
- 25,188
SecurityOnline
Penthera
Offline, rule-based security checks for your repo, dependencies, AI agent config and local app.
- GitHub stars
- 75
Web and browser automationOnline
Perplexity Comet Mcp
Bridge Claude Code with Perplexity Comet for autonomous browsing and tab management
- GitHub stars
- 53
Health and scienceOnline
Pfeiffer Vacuum Gauge Controller
MCP server for Pfeiffer Vacuum TPG 361/362/366 and TPG 261/262 gauge controllers.
- GitHub stars
- 23
SecurityOnline
Phantom Secrets
Value-blind secret metadata and gated workflows for AI coding agents through Phantom's local proxy.
- GitHub stars
- 18
AI and media generationOnline
Photoshop MCP Server
Drive Adobe Photoshop from any MCP client: layers, selections, adjustments, type and export.
- GitHub stars
- 28
Developer toolsOnline
PIO Agent
Build, inspect, flash, and monitor PlatformIO firmware projects with policy-controlled tools.
- GitHub stars
- 54
Sales and marketingOnline
Pipedrive CRM
MCP server for Pipedrive CRM. 155 tools for deals, persons, organizations, activities, and more.
- GitHub stars
- 10
Scopes
Cities
Categories
Questions
Which scopes in United States have the most MCP servers?
The scopes with the most MCP servers are Global (717 MCP servers).
Which cities in United States have the most MCP servers?
The cities with the most MCP servers are Online, Global (717 MCP servers).
What kinds of MCP servers are in United States?
Categories in United States: Developer tools, Finance and crypto, Productivity and collaboration, Search and research, and Cloud and DevOps.
Published by MCPDirectory. How we check each MCP server.