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MCP.so is a third-party MCP Marketplace with 22291 MCP Servers collected.
ShipAny: NextJS boilerplate for building AI SaaS startups.
Latest MCP Servers
View AllPropLine
Live sports betting player props and odds across 45 sports and 16+ books — plus prop resolution: every Over/Under graded won/lost/push against the real box score (unique vs other odds APIs). Cross-book +EV, line history, scores, and box-score stats. Zero-config via a built-in free demo key.
Upload Post
Upload-Post is the all-in-one social media MCP server — the Model Context Protocol server for social media publishing, scheduling and analytics. Connect any MCP-compatible AI agent (Claude, Cursor, ChatGPT, Claude Desktop, n8n, and more) and publish, schedule and analyze content across 13+ social networks from one API: TikTok, Instagram, YouTube, YouTube Shorts, Instagram Reels, LinkedIn, Facebook, X (Twitter), Threads, Pinterest, Reddit, Bluesky, Google Business, Discord and Telegram. A single social media MCP for cross-posting, content automation, post scheduling, analytics and engagement: ~45 tools covering video/photo/text uploads, scheduling queues, performance analytics and impressions, comment management, direct messages (DMs) and auto-DMs, plus GPU FFmpeg video encoding. Perfect for social media automation, AI content agents, marketing workflows and social media management. Remote hosted server (streamable-HTTP + OAuth) or local stdio. Listed on the official MCP Registry as com.upload-post/mcp. Keywords: social media MCP, MCP social media, social media API, social media automation, post scheduler, cross-posting, content automation, TikTok MCP, Instagram MCP, YouTube MCP, LinkedIn MCP, social media analytics.
flatten-mcp
An MCP server that flattens Claude Code sessions — keeping every prompt and event verbatim while reclaiming context tokens, so you resume the exact same raw conversation at a lower token count instead of compacting it into a lossy summary. It moves bulky tool output (large file reads, command logs, base64 screenshots) into a sidecar file, leaving a tiny retrievable reference in its place. Crash-safe, idempotent, and fully reversible. Real example from the README: a 317,236-token session flattened to 182,287 tokens.
MCP for Indexa Capital
Check your portfolio, cash transactions, movements, payed fees, growth history and more
Hevy MCP
Analyze your workout history, manage routines, track progress, and help you plan future training using your real fitness data from Hevy. Cero technical knowledge required!
Latest MCP Clients
View AllOpenSEO
SEO research tools for AI agents: keyword research and metrics, SERP and local SERP results, domain and backlink analysis, rank tracking, and Google Search Console performance.
BUILDY
Buildy lets ChatGPT, Claude, or any coding agent build real web apps on demand. The app works across agents, so you can build it once and keep using the same app/data from ChatGPT, Claude, Codex, or wherever your agent runs.
Fable5
Claude Fable 5: Anthropic's first public Mythos-class model, explained
Voyei
Voyei is a collaborative travel-planning app (Brazil-first, PT-BR). Its native MCP server lets you connect your own AI client — Claude, ChatGPT, Cursor or any MCP-compatible client — and have it read and edit your trips in real time, using your AI plan (Voyei never charges per token nor trains on your data). The AI can create and edit trips (days auto-generated), add and schedule places, manage reservations (hotels, restaurants, tours, events) and transport (flights, trains, cars, cruises), build budgets with expense-splitting, assemble packing lists, collaborate (shared notes, polls, messages, to-dos), update your travel Atlas and journey log, and search places & weather. Exposes 78 tools and 15 read resources, with granular OAuth scopes (read/write per area).
FAQ
Frequently Asked Questions about MCP Server
What is MCP (Model Context Protocol)?
MCP is an open-source protocol developed by Anthropic that enables AI systems like Claude to securely connect with various data sources. It provides a universal standard for AI assistants to access external data, tools, and prompts through a client-server architecture.
What is MCP Server?
MCP Server is a system that provides context, tools, and prompts to AI clients. It can expose data sources like files, documents, databases, and API integrations, allowing AI assistants to access real-time information in a secure way.
How do MCP Server work?
MCP Server work through a simple client-server architecture. They expose data and tools through a standardized protocol, maintaining secure 1:1 connections with clients inside host applications like Claude Desktop.
What can MCP Server provide?
MCP Server can share resources (files, docs, data), expose tools (API integrations, actions), and provide prompts (templated interactions). They control their own resources and maintain clear system boundaries for security.
How does Claude use MCP?
Claude can connect to MCP server to access external data sources and tools, enhancing its capabilities with real-time information. Currently, this works with local MCP servers, with enterprise remote server support coming soon.
Is MCP Server secure?
Yes, security is built into the MCP protocol. Server controls its own resources, there's no need to share API keys with LLM providers, and the system maintains clear boundaries. Each server manages its own authentication and access control.
What is mcp.so?
mcp.so is a community-driven platform that collects and organizes third-party MCP Servers. It serves as a central directory where users can discover, share, and learn about various MCP Servers available for AI applications.
How can I submit my MCP Server to mcp.so?
You can submit your MCP Server by creating a new issue in our GitHub repository. Click the 'Submit' button in the navigation bar or visit our GitHub issues page directly. Please provide details about your server including its name, description, features, and connection information.