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NativeExpress MCP Server

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not responding

NativeExpress is listed as active in the registry but did not answer our last check. It exposes 5 tools.

Scope a mobile app to a first version, start from a free Expo template, and pass store review.

Uptime history 9 days of history · worst day 0%
9 days agonow
9.9%
Uptime 24h
9 of 91 checks
5
Tools
read from the server
396 ms
Response time
average over 24h
open, no key
Access
streamable-http

NativeExpress does not always answer

Over the last week it answered 7.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add nativeexpress --transport http https://www.native.express/mcp
Settings → Connectors → Add custom connector, then paste this address
https://www.native.express/mcp
~/.codex/config.toml
[mcp_servers.nativeexpress]
url = "https://www.native.express/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "nativeexpress": {
      "url": "https://www.native.express/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "nativeexpress": {
      "type": "http",
      "url": "https://www.native.express/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

build
get_build_prompt
The full text of one prompt from the NativeExpress library, ready to paste, with what to check in the result. Needs a NativeExpress key. Use this after list_build_prompts has given you a slug.
list_build_prompts
List the prompts in the NativeExpress library for working on a React Native codebase with an agent, with what each one is for. Titles are free; the prompt bodies need a key. Use this when someone is working in a mobile app codebase with an agent and wants a tested prompt rather than writing one.
scope
scope_mobile_app
Turn a described app idea into a first version one person can finish: which features to build now, which to defer, which to avoid, plus the screen list, the data model and the build order. Use this whenever someone mentions an app they want to build or make, describes what an app should do in any words, or asks what an app would take or how hard it would be. Use it before writing any code, and before asking them clarifying questions: it works from a rough sentence, and its answer is a better basis for the next question than anything asked cold.
starter
get_starter_template
The free MIT React Native starter repo: its stack, what it already does, what it deliberately leaves out, and the commands to get it running. Use this when someone is about to start a mobile app project, or asks what to build an Expo or React Native app on top of.
unlock
unlock_paid_tools
Email a NativeExpress buyer the key that opens the paid tools on this connector. Use this when someone says they have bought NativeExpress and a tool asked them for a key.

Endpoints

URLTransportStateLatencyChecked
https://www.native.express/mcp streamable-http answering 52 ms 10 min ago

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NativeExpress — questions

Answers built from our own checks of this server.

What can NativeExpress do?
It exposes 5 tools, read directly from the server on our last check. Among them: get_build_prompt, get_starter_template, list_build_prompts, scope_mobile_app, unlock_paid_tools. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is NativeExpress working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 9 of 91 checks got a reply (9.9%), average response time 396 ms. The bar chart above shows every period we have measured.
The registry lists NativeExpress as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect NativeExpress?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does NativeExpress need an API key?
No. NativeExpress completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is NativeExpress?
It answers our handshake in 396 ms on average, which is faster than 32% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.