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Top 5 Hidden MCP Marketplaces You Should Be Using in 2025

Explore the best-kept secrets of the MCP ecosystem in 2025! Learn how to pick the right marketplace - hosted, aggregated, or self-hosted - based on your integration needs, OAuth support, cost, and access to local resources.

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Solan Sync
July 23, 2025

Uncover the Hidden Gems: Must‑Know MCP Marketplaces in 2025

You’ve seen the MCP (Model‑Connected Platform) space explode — thousands of servers and tools floating around, both official and community-driven. That’s exciting… but also overwhelming. How do you find the right platform without getting lost?

Having explored this landscape myself, it’s time to spotlight the platforms worth your attention — and explain exactly why you’ll want each one in your toolbox.

Note: These aren’t paid endorsements. They’re based purely on personal experience and hands-on tests. But I hope they inspire your next MCP adventure!

What Makes a Great MCP Marketplace?

Here are the key features I look for:

  • 🔧 Hosted Server Setup: They handle DevOps and provide a public URL out of the box.

  • 🔐 Credential Vault: Secure storage for API keys and OAuth tokens.

  • 🔄 In‑Chat OAuth: Users grant permissions at runtime — no manual token pasting.

  • 🧩 Aggregation (Meta‑Servers): Bundle services like Gmail + Outlook into a single endpoint.

  • 🏠 Local vs Remote Access: Need to reach your desktop or private network? You’ll want self-hosting.

  • 💰 Free Tier & Pricing: How generous is the free plan, and what are overage rates?

Showcase Platforms That Do It for You

  • A combined marketplace and hosting platform.

  • Offers a secure credential vault.

  • Heads-up: No automated OAuth — you’ll paste tokens yourself.

  • Easily forkable for self-hosting.

  • Houses 100+ ready-to-use SaaS servers.

  • Supports OAuth via SDK or in-chat triggers.

  • Lets you craft meta-servers — fuse Gmail + Outlook if you like.

  • Fully open‑source, so you can self-host.

  • Cloud-hosted or self-hosted via Docker.

  • Wizard guides for OAuth and API-key setup.

  • Create workflows, then expose them as a single MCP endpoint.

  • Ideal for complex automation scenarios.

  • Largest searchable MCP directory (~6,500+).

  • Offers proxy hosting for popular servers.

  • You manage credentials server-by-server.

  • Great for discovery and exploration.

  • One endpoint connects to 8,000+ apps.

  • All integrations accessible without any stitching.

  • Remote-only setup — no local system access.

  • OAuth managed via Zapier’s Connections UI.

  • Free MCP beta; tasks follow standard Zapier pricing.

DIY: Self‑Hosting & Directories

MCP.so (Volcengine)

  • Curation-focused, with clear install instructions.

  • Self-hosting required — no vault for credentials.

GitHub “awesome-mcp-servers”

  • A community-curated treasure trove of MCP server repos.

  • All self-hosted via Docker or CLI.

  • Often links out to Smithery or hosting guides.

Cost Snapshot (as of July 2025)

  • Zapier: 100 free tasks/month, then from $19.99/mo

  • Activepieces: 1,000 free tasks, then $1/1k tasks

  • Composio: 20,000 free calls, then $0.299/1k calls

  • Glama: $80/mo for 10 servers + $3/server extra

  • Smithery: Pay-as-you-go beyond free credits

Final Takeaway

The MCP marketplace scene in 2025 is diverse and rapidly evolving. Whether you want no-fuss hosted setups, OAuth-enabled integrations, or full self-hosted control — there’s a marketplace that fits your workflow and budget. Know your needs, compare the features, and make your AI agent truly shine.

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