Umbryn MCP Server
by rinavaio.github.Rinava/umbryn-mcpv0.2.1
Redacts PII/PHI from text before it reaches an LLM. Fail-closed, self-hosted, no egress.
context tax
queued
security
queued
cold start
queued
freshness
Maintained57d ago
Install Umbryn MCP server
Install in Claude Code
claude mcp add umbryn -- uvx umbryn-mcpInstall in Cursor
{
"mcpServers": {
"umbryn": {
"command": "uvx",
"args": [
"umbryn-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"umbryn": {
"command": "uvx",
"args": [
"umbryn-mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"umbryn": {
"type": "stdio",
"command": "uvx",
"args": [
"umbryn-mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"umbryn": {
"command": "uvx",
"args": [
"umbryn-mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| UMBRYN_ENGINE | — | — | Detection engine: auto (default), regex, or presidio |
| UMBRYN_MIN_CONFIDENCE | — | — | Trust threshold (0-1); detections below it fail closed. Default 0.5 |
| UMBRYN_DETECTION_FLOOR | — | — | Sensitivity floor (0-1); below this a signal is noise. Default 0.35 |
Freshness
Maintained — last maintenance signal 57d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-08-13 · 57d ago · GitHub
Latest release
2026-07-06 · 3mo ago · GitHub · v0.2.0
Package published
no data · npm/PyPI
Registry entry updated
2026-08-13 · 57d ago · official registry · v0.2.1
FAQ
›How do I install the Umbryn MCP server in Claude Code?
Run: claude mcp add umbryn -- uvx umbryn-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Umbryn require an API key?
No required environment variables are declared in its published metadata.
›Can I use Umbryn as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Umbryn in the official MCP registry?
Yes, as io.github.Rinava/umbryn-mcp.
Alternatives to Umbryn
Other ai & llm tools MCP servers.