MCP server for Node-RED — safe deploy, optimistic locking, smart search, 13 tools
MCP server for Node-RED — safe deploy, optimistic locking, smart search, 13 tools. That is what the nr mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.
Built to solve real problems: the existing Node-RED MCP implementations use PUT /flow/:id which reorders your tabs. nr-mcp uses the correct GET → POST /flows pattern with optimistic locking, so your tab order is always preserved.
The server publishes 1 tool. What each one is for:
Prerequisites — The Prerequisites tool exposed by this serverThe server ships on PyPI as nr-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Configuration is passed through the environment: NR_URL, NR_USER, NR_PASS, NR_TOKEN. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the cloud and infrastructure options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Nr's toolset — Prerequisites — is a fair guide to whether it matches your workflow. It is maintained by Texan-NXTassist; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Nr's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Prerequisites | The Prerequisites tool exposed by this server. |
{
"mcpServers": {
"nr": {
"command": "uvx",
"args": ["nr-mcp"],
"env": {
"NR_URL": "your-value",
"NR_USER": "your-value",
"NR_PASS": "your-value",
"NR_TOKEN": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| NR_URL | Endpoint or connection string the server talks to. | Yes |
| NR_USER | Configuration value read at startup. | Optional |
| NR_PASS | Configuration value read at startup. | Optional |
| NR_TOKEN | Credential the server authenticates with. | Yes |
Manage your whole Supabase project in conversation — database, auth, storage, Edge Functions and branches.
Stop letting your assistant hallucinate n8n node parameters — this server hands it the real schemas, templates and validation.
AWS Labs' official server suite — current AWS docs, CDK guidance, cost analysis and service tools.
Cloud browsers for AI agents — automation sessions that run in Browserbase's fleet, not on your machine.
Workers, KV, R2 and D1 by conversation — Cloudflare's official remote servers for building and observability.
Dashboards, Prometheus and Loki queries, incidents and alerts — observability by conversation.