Write secrets into .env without the agent ever seeing the value - Windows masked dialog (繁中 UI)
If you already use Secret, the secret mcp server is the piece that lets your assistant work with it directly. Write secrets into .env without the agent ever seeing the value - Windows masked dialog (繁中 UI).
A Model Context Protocol server that lets an AI agent put a secret (API key, token, password, connection string) into a project's .env file without the agent ever seeing the value.
secret-safe-env on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.
Configuration is passed through the environment: OPENAI_API_KEY, DATABASE_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
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. It is maintained by irrenwill; 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We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
{
"mcpServers": {
"secret-safe-env": {
"command": "npx",
"args": ["-y", "secret-safe-env"],
"env": {
"OPENAI_API_KEY": "your-value",
"DATABASE_URL": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| OPENAI_API_KEY | Credential the server authenticates with. | Yes |
| DATABASE_URL | Endpoint or connection string the server talks to. | Yes |
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.