Simplisafe MCP vs Next Devtools MCP
A side-by-side look at the Simplisafe MCP 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 Simplisafe MCP for home automation 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 Simplisafe MCP when
- You need dedicated capabilities in the Home Automation domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
SIMPLISAFE_REFRESH_TOKEN. - You want tools like
simplisafe_list_systems, simplisafe_get_system, simplisafe_get_settings.
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 | Home Automation | Developer Tools |
| Quality signal | 61/100 · 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 | SIMPLISAFE_REFRESH_TOKEN | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 0 | 832 |
| Directory activity | 1 views 0 installs 0 upvotes | 9 views 0 installs 1 upvotes |
| Tools | 10 | 4 |
| Full listing | View Simplisafe MCP | View Next Devtools MCP |
Tools & capabilities
Simplisafe MCP tools 10
simplisafe_list_systemsList the SimpliSafe systems on this account with their current alarm state (off/home/away), alarming status, connectivity and power status. Start here to get the `sid` other tools take.simplisafe_get_systemGet the current state of one SimpliSafe system: alarm state, whether it is alarming, base-station connectivity, power/battery status and any pending base-station messages.simplisafe_get_settingsGet base-station settings for a system: entry/exit delays, alarm volume and duration, door chime, voice prompts, plus base-station health (wifi/cellular signal, wall power, backup battery, RF jamming). Does not include PINs — use simplisafe_get_pins for those.simplisafe_get_pinsRead the system's user PINs (master, duress and named users). These are the live alarm codes and are returned in cleartext, so calling this puts them into the conversation. Asks the user to confirm first: a confirmation prompt where the client supports one; otherwise the first call returns a warning preview and a confirmToken and fetches nothing, and only a repeat call with that token proceeds (see MCP_CONFIRM_MODE).simplisafe_list_sensorsList the sensors and devices paired to a system — entry sensors, motion, glass break, smoke/CO, keypads, sirens and locks — with battery, offline and triggered status. Filter by type with `type_name` (e.g. "entry", "motion_v2", "lock").simplisafe_list_locksList the smart locks on a system with their current state (locked / unlocked / jammed), lock and keypad battery status, and keypad connectivity. Returns the `serial` that simplisafe_set_lock_state takes. Polls the base station fresh by default, because a stale answer to "is my door locked?" is worse than a slow one.simplisafe_get_eventsGet recent events recorded by the base station — arm/disarm, sensor opens, lock and unlock, alarms, errors — newest first. Each event carries an ISO timestamp alongside the raw epoch seconds.simplisafe_set_alarm_stateArm or disarm the alarm system: "off" (disarm), "home" (perimeter only) or "away" (all sensors). Asks the user to confirm first: a confirmation prompt where the client supports one; otherwise the first call returns a preview and a confirmToken, and only a repeat call with that token proceeds (see MCP_CONFIRM_MODE). This physically changes a security system: disarming leaves the house unmonitored, and arming can trigger a siren and a monitoring-center dispatch. After executing, the new state is verified by re-reading the system.simplisafe_set_lock_stateLock or unlock a SimpliSafe smart lock. Asks the user to confirm first: a confirmation prompt where the client supports one; otherwise the first call returns a preview and a confirmToken, and only a repeat call with that token proceeds (see MCP_CONFIRM_MODE). Unlocking physically opens a door lock, so it is gated even though it is technically reversible. After executing, the result is verified by re-reading the lock state.simplisafe_healthcheckCheck that the server can authenticate to SimpliSafe and reach the API. Reports whether the refresh token is configured and working, the resolved user id, and how many active systems the account has. Start here when other tools fail.
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.
Simplisafe MCP
{
"mcpServers": {
"simplisafe-mcp": {
"command": "npx",
"args": [
"-y",
"simplisafe-mcp"
],
"env": {
"SIMPLISAFE_REFRESH_TOKEN": "YOUR_SIMPLISAFE_REFRESH_TOKEN_HERE"
}
}
}
}
Next Devtools MCP
{
"mcpServers": {
"vercel-next-devtools-mcp": {
"command": "npx",
"args": [
"-y",
"next-devtools-mcp@latest"
]
}
}
}
Frequently asked questions
Simplisafe MCP is categorized under Home Automation and uses a local stdio subprocess. Next Devtools MCP belongs to Developer Tools and uses a local stdio subprocess. Pick Simplisafe MCP for home automation 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.
Simplisafe MCP 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 simplisafe-mcp and vercel-next-devtools-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Simplisafe MCP has a quality signal of 61/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Next Devtools MCP has 86/100 (Excellent) with 9 views, 0 installs and 832 GitHub stars.