RxJS MCP Server - Execute, debug, and visualize RxJS streams for AI assistants
Rxjs MCP server exists for a simple reason — assistants are far more useful when they can act on Rxjs directly instead of describing what you should do. RxJS MCP Server - Execute, debug, and visualize RxJS streams for AI assistants.
Execute, debug, and visualize RxJS streams directly from AI assistants like Claude.
Once Rxjs is connected, these are the calls the assistant has available:
Cursor — The Cursor tool exposed by this serverexecute_stream — Execute RxJS code and capture stream emissions with timelinegenerate_marble — The generate_marble tool exposed by this serveranalyze_operators — Analyze RxJS operator chains for performance and best practicesdetect_memory_leak — The detect_memory_leak tool exposed by this serversuggest_pattern — The suggest_pattern tool exposed by this serverlint_rxjs — Lint RxJS code snippets for common issues and best practices. Based on eslint-plugin-rxjs-xnpx on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.
Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Rxjs's toolset — Cursor, execute_stream, generate_marble and 4 more — is a fair guide to whether it matches your workflow. It is maintained by shuji-bonji; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| Cursor | The Cursor tool exposed by this server. |
| execute_stream | Execute RxJS code and capture stream emissions with timeline. |
| generate_marble | The generate_marble tool exposed by this server. |
| analyze_operators | Analyze RxJS operator chains for performance and best practices. |
| detect_memory_leak | The detect_memory_leak tool exposed by this server. |
| suggest_pattern | The suggest_pattern tool exposed by this server. |
| lint_rxjs | Lint RxJS code snippets for common issues and best practices. Based on [eslint-plugin-rxjs-x](https://github.com/JasonWeinzierl/eslint-plugin-rxjs-x) rules. |
{
"mcpServers": {
"rxjs": {
"command": "npx",
"args": ["-y", "npx"]
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
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