MCP server for Vaultwarden/Bitwarden vault management. Enables AI agents to securely create, search, read, and update vault items via the official Bitwarden CLI, with safe-by-default redaction and support for both stdio and SSE transports.
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process.env. You'll be asked to provide them before it can run.BW_BIN— if you set it explicitlyBW_CLIENTID— user.xxxxx \BW_CLIENTSECRET— The examples below use Bitwarden API-key auth. If you prefer username/password login, replace BW_CLIENTID + with BW_USER.BW_HOST— env =https://vaultwarden.example.com \BW_PASSWORD— 'your-master-password' \BW_UNLOCK_INTERVALBW_USER— user@example.com \BW_USERNAMEKEYCHAIN_ALLOW_ENV_FALLBACK— BW_ configuration when =true. You can useKEYCHAIN_BW_HOME_ROOTKEYCHAIN_DEBUG_BWKEYCHAIN_DEBUG_HTTPKEYCHAIN_FLOOD_BASE_URLKEYCHAIN_FLOOD_CONCURRENCYKEYCHAIN_FLOOD_DEBUGKEYCHAIN_FLOOD_REQUESTSKEYCHAIN_FLOOD_TIMEOUT_MSKEYCHAIN_INTEGRATION_PROFILEKEYCHAIN_MAX_HEAP_USED_MB— (default 1536, set 0 to disable memory fuse)KEYCHAIN_METRICS_LOG_INTERVAL_MS— (default 0, disabled)KEYCHAIN_METRICS_URLKEYCHAIN_REQUIRE_ORG_TESTSKEYCHAIN_SESSION_MAX_COUNT— (default 32)KEYCHAIN_SESSION_SWEEP_INTERVAL_MS— (default 60000)KEYCHAIN_SESSION_TTL_MS— (default 900000)KEYCHAIN_SYNC_ON_WRITEKEYCHAIN_TEXT_COMPAT_MODE— If =structured_json is enabled, supported success andMCP_APP_NAMEPORTREADONLY— Set =true to hide mutating tools from the advertised MCP catalog and reject direct write calls (create/edit/delete/move/restore/attachments).TOOL_PREFIX— Tool names default to keychain_. Override to change the namespace and TOOL_SEPARATOR to change the separator (default _, set . for legacy clients).TOOL_SEPARATOR— Tool names default to keychain_. Override TOOL_PREFIX to change the namespace and to change the separator (default _, set . for legacy clients).VW_APIKEY_ENV_FILEVW_BOOTSTRAP_TIMEOUT_MSVW_NAMEVW_ORG_NAMEWARDEN_MCP_STDIO[](https://m8ven.ai/mcp/icoretech-warden-mcp-1fj4o9)