Haldir vs Vaara
A side-by-side look at the Haldir and Vaara MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Haldir for security work as a local process; choose Vaara for security as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Haldir when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
HALDIR_ENCRYPTION_KEY.
Choose Vaara when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 43/100 · Fair | 49/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Freemium | Free |
| Required env vars | HALDIR_ENCRYPTION_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 4 | 15 |
| Directory activity | 4 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Haldir | View Vaara |
Tools & capabilities
Haldir tools
No tool names declared yet. Check the project README from the listing page.
Vaara tools
No tool names declared yet. Check the project README from the listing page.
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.
Haldir
{
"mcpServers": {
"haldir": {
"command": "uvx",
"args": [
"haldir"
],
"env": {
"HALDIR_ENCRYPTION_KEY": "YOUR_HALDIR_ENCRYPTION_KEY_HERE"
}
}
}
}
Vaara
{
"mcpServers": {
"vaara": {
"command": "npx",
"args": [
"--upstream-arg",
"-y",
"--upstream-arg",
"@sap/mdk-mcp-server"
]
}
}
}
Frequently asked questions
Haldir is categorized under Security and uses a local stdio subprocess. Vaara belongs to Security and uses a local stdio subprocess. Pick Haldir for security work and Vaara for security.
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.
Haldir is listed as freemium — a free tier with paid plans. Auth: api key required. Vaara 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 haldir and vaara as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Haldir has a quality signal of 43/100 (Fair) with 4 views, 0 installs and 4 GitHub stars. Vaara has 49/100 (Fair) with 1 views, 0 installs and 15 GitHub stars.