Deer Flow MCP Server

by axsapronov

MCP server that drives a deployed DeerFlow instance over its HTTP API: deep research and full thread/run/artifact control.

0Node.jsstdio

context tax

pending

security

97/100

cold start

pending

freshness

Maintained36d ago

Our reading of Deer Flow, from the data

Deer Flow is a science & research MCP server from axsapronov.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is maintained: the last public signal was 36 days ago (2026-09-12). For comparison, 73% of science & research servers are active or maintained.

With 0 GitHub stars it ranks #442 of 1,435 science & research servers we index.

It runs locally on your machine over stdio.

Install Deer Flow MCP server

claude mcp add deer-flow -- npx -y deer-flow-mcp

{
  "mcpServers": {
    "deer-flow": {
      "command": "npx",
      "args": [
        "-y",
        "deer-flow-mcp"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "deer-flow": {
      "command": "npx",
      "args": [
        "-y",
        "deer-flow-mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "deer-flow": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "deer-flow-mcp"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "deer-flow": {
      "command": "npx",
      "args": [
        "-y",
        "deer-flow-mcp"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Security signals

97/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Deductions

No security policy (SECURITY.md)-3

Checks

✓Repository hygiene (archived, activity, license, security policy)
○Package metadata (install scripts, provenance) — pending
○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
○Source scan (secrets, CVEs, risky code) by vectra-guard — pending

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Maintained — last maintenance signal 36d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-12 · 36d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry

How it compares in Science & Research

Against the most-starred science & research servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
Deer Flow (this)	0	—	not measured	Maintained	local
Wigolo	5,486	—	not measured	Active	local
Zotero	5,460	—	not measured	Active	local
Exa	5,138	2	564	Active	local + hosted
Postgres	3,403	—	not measured	Maintained	—
Arxiv	3,224	—	not measured	Active	local

All science & research MCP servers

FAQ

›How do I install the Deer Flow MCP server in Claude Code?

Run: claude mcp add deer-flow -- npx -y deer-flow-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Deer Flow require an API key?

No required environment variables are declared in its published metadata.

›Can I use Deer Flow as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Deer Flow in the official MCP registry?

No. It was indexed from npm.

Sources and method

GitHub repository: fetched 2026-10-19
Package registry (npm / PyPI): listed
Security signals, computed by us: 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.