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Built around popularity
Servers ranked by real GitHub stars, weekly downloads, and Smithery usage — not alphabet soup. Trending surfaces what the community is adopting right now.
Native iOS · Local-first · Free
The MCP universe,
in your pocket.
Browse the real MCP server catalog ranked by popularity. Save favorites offline. Connect to any Streamable HTTP server and run tools straight from your iPhone.
Free to download. No account. No backend. Your data never leaves your phone.
What you get
Everything you need to work with MCP servers
Not a web wrapper. A native iOS app built around the way developers actually find and test MCP servers.
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Search the real catalog
Full-text search across the official MCP Registry and curated servers. Find that niche PostgreSQL tool you didn't even know existed.
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Favorites offline
Save servers with one tap. Your list stays on your iPhone and works offline — no account, no sync, no cloud.
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Test any server live
Paste any Streamable HTTP endpoint and verify it in seconds: connect, list tools, and invoke tools with JSON arguments. Full call history built in.
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2025 & 2026 protocols
Choose between the stateful 2025 era and the stateless 2026 era so you can test legacy and modern servers alike.
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Private by design
Local-first. No backend, no accounts, no tracking. Your favorites and settings never leave your device.
How it works
From discovery to a live tool call in four steps
01
Browse
Open the curated catalog sorted by popularity. Filter by category, health, license, and auth model.
02
Favorite
Star anything you might use. Your favorites are saved locally and visible offline.
03
Connect
Tap Connect to add a server to My Servers. The Tester opens with its URL pre-filled — just press connect.
04
Invoke tools
List the server's tools, fill in JSON arguments from the schema, and call it live. See the result instantly.
> connect https://mcp.context7.com/mcp
✓ initialized — 2026 stateless
> tools/list
✓ 6 tools available
> tools/call python_package_docs — { "package": "openai", "version": "1.0" }
✓ 3 docs matched · returned as markdown
Under the hood
Built native. Built for iOS.
Every detail you'd expect from a first-class iOS developer tool.
Real popularity signals
MCPPopularity · Smithery · GitHub
Servers scored by actual usage: GitHub stars, npm weekly downloads, and Smithery use counts. No fake rankings.
Registry + curated sources
Official MCP Registry · top-mcps.com
Long-tail servers from the official registry merged with a curated, readable catalog. Offline cache included.
Streamable HTTP transport
JSON-RPC 2.0 · SSE
Tester speaks Streamable HTTP with full error mapping, timeouts, and both protocol eras (2025 stateful / 2026 stateless).
Schema-aware tool calls
inputSchema → JSON form
Tools are parsed from JSON Schema into a friendly form with example payloads, so you can call any tool without reading the spec.
My Servers
Configured endpoints · era switcher
Keep the endpoints you actually use. Re-test them any time with one tap.
Privacy-first
100% on-device
No analytics SDKs, no accounts, no backend. Connections go directly from your phone to the server you choose.
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Local-first by design. MCP Radar has no backend and collects no personal data. Your favorites, servers, and tester history live only on your iPhone. Read the privacy policy →
FAQ
Questions
What is MCP?
Model Context Protocol — an open standard that lets AI assistants call external tools. MCP Radar helps you find and test the servers behind those tools.
Do I need an account?
No. MCP Radar is 100% local-first. There's no sign-up, no backend, and nothing to sync.
Can I test my own server?
Yes — paste any Streamable HTTP endpoint in the Tester. Local developers can test http://localhost servers too.
It's free?
Yes. MCP Radar is free to download and use. There are no paywalled features.
Which iOS versions?
iPhone with iOS 18 or later.
Who makes it?
Zordon Intelligence — the team behind ProperSend, Nowe-firmy, and BazaFirm.
The MCP ecosystem
fits in your pocket.
Discover, save, connect, and test. All from one native app on your iPhone.
Download on the App StoreFree · iOS 18+ · Made by Zordon Intelligence