Open Notify vs Next Devtools MCP
A side-by-side look at the Open Notify and Next Devtools MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Open Notify for aerospace & astrodynamics work as a local process; choose Next Devtools MCP for developer tools as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Open Notify when
- You need dedicated capabilities in the Aerospace & Astrodynamics domain.
- You prefer a local stdio subprocess transport.
- You want tools like
iss_now, astros.
Choose Next Devtools MCP when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
nextjs_index, nextjs_call, nextjs_docs.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Aerospace & Astrodynamics | Developer Tools |
| Quality signal | 56/100 · Good | 86/100 · Excellent |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 0 | 832 |
| Directory activity | 2 views 0 installs 0 upvotes | 9 views 0 installs 1 upvotes |
| Tools | 2 | 4 |
| Full listing | View Open Notify | View Next Devtools MCP |
Tools & capabilities
Open Notify tools 2
iss_nowCurrent latitude / longitude of the International Space Station.astrosPeople currently in space — name + craft (ISS / Tiangong / etc.).
Next Devtools MCP tools 4
nextjs_indexDiscover running Next.js dev servers and list each one's runtime MCP tools.nextjs_callCall a runtime tool on a discovered server (errors, routes, logs, Server Actions).nextjs_docsGateway.** Point the agent at version-accurate docs in `node_modules/next/dist/docs/`.browser_evalGateway.** Point the agent at the [`agent-browser`](https://github.com/vercel-labs/agent-browser) CLI for browser automation.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Open Notify
{
"mcpServers": {
"open-notify": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-open-notify"
]
}
}
}
Next Devtools MCP
{
"mcpServers": {
"vercel-next-devtools-mcp": {
"command": "npx",
"args": [
"-y",
"next-devtools-mcp@latest"
]
}
}
}
Frequently asked questions
Open Notify is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. Next Devtools MCP belongs to Developer Tools and uses a local stdio subprocess. Pick Open Notify for aerospace & astrodynamics work and Next Devtools MCP for developer tools.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Open Notify has no declared pricing — check the project's own site. Next Devtools MCP is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add open-notify and vercel-next-devtools-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Open Notify has a quality signal of 56/100 (Good) with 2 views, 0 installs and 0 GitHub stars. Next Devtools MCP has 86/100 (Excellent) with 9 views, 0 installs and 832 GitHub stars.