context tax
pending
security
97/100
cold start
pending
freshness
Active23d ago
Our reading of Harmonica, from the data
Harmonica is an MCP server from harmonicabot.
We haven't measured its tool list yet, so its token cost is unknown.
Maintenance is active: the last public signal was 23 days ago (2026-09-25).
It runs locally on your machine over stdio.
Install Harmonica MCP server
Install in Claude Code
claude mcp add harmonica -- npx -y harmonica-mcpInstall in Cursor
{
"mcpServers": {
"harmonica": {
"command": "npx",
"args": [
"-y",
"harmonica-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"harmonica": {
"command": "npx",
"args": [
"-y",
"harmonica-mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"harmonica": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"harmonica-mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"harmonica": {
"command": "npx",
"args": [
"-y",
"harmonica-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
Active — last maintenance signal 23d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-25 · 23d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry
FAQ
›How do I install the Harmonica MCP server in Claude Code?
Run: claude mcp add harmonica -- npx -y harmonica-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Harmonica require an API key?
No required environment variables are declared in its published metadata.
›Can I use Harmonica as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Harmonica 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.