# ScrubGuard (npm · scrubguard-mcp) Local-first PII and secret scrubber with checksum checks and reversible LLM tokens. - Trust score: 66/100 (medium) - Registry status: active - Liveness: live - Owner verified: no - Last scored: 2026-10-26 ## Components - npm · `scrubguard-mcp`: 66/100 (this document), [markdown](https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp.md), [page](https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp) ## Channel facts - Registry: `npm` - Package: `scrubguard-mcp` - Version: `1.0.0` - Transport: `stdio` ## Trust breakdown How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog) Scored 2026-10-26. - **Supply Chain Security**: 100/100 - No malware found by supply-chain analysis. - No known CVEs affecting this package version or its production dependencies. - No install/post-install scripts declared. - No production dependencies, so there is no dependency health to assess. - **Provenance & Transparency**: 45/100 - Source repository is publicly reachable at the declared URL. - Provenance check failed: no build-provenance attestation is published. - Clear OSI-approved license (MIT). - Actively maintained (last published 1 days ago). - Disclosure check failed: no security disclosure policy was found in the source repository. - **Schema Quality & AI Usability**: 70/100 - AI-judged instruction clarity (good). - Tool/resource definitions use about 216 tokens (~72/item across 3 items; 3 tools + 0 resources), lean. - Usage-examples check failed: none of the tools include examples. - **Stability & Change Management**: 0/100 - Stability not yet verified: not enough scan history yet (needs a 30-day window). - **Tool Coverage**: 95/100 - 100% of tools have a non-trivial description (not blank, and not just the tool's name). - 86% of tool parameters carry a description. - **Tool Safety**: 100/100 - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured. - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation. - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it. - **Capabilities**: 20/100 - Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. **Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm. ## Install ### How do I install the ScrubGuard MCP server? ScrubGuard runs locally as an npm package, launched with npx -y scrubguard-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation. ### Claude ```bash claude mcp add scrubguard-dev-scrubguard -- npx -y scrubguard-mcp ``` ### Cursor ```json { "mcpServers": { "scrubguard-dev-scrubguard": { "command": "npx", "args": [ "-y", "scrubguard-mcp" ] } } } ``` ### VS Code ```json { "servers": { "scrubguard-dev-scrubguard": { "command": "npx", "args": [ "-y", "scrubguard-mcp" ] } } } ``` ### Codex ```bash codex mcp add scrubguard-dev-scrubguard -- npx -y scrubguard-mcp ``` ### opencode ```json { "$schema": "https://opencode.ai/config.json", "mcp": { "scrubguard-dev-scrubguard": { "type": "local", "command": [ "npx", "-y", "scrubguard-mcp" ], "enabled": true } } } ``` ### OpenClaw ```bash openclaw mcp add scrubguard-dev-scrubguard --command npx --arg -y --arg scrubguard-mcp ``` ### Hermes ```yaml mcp_servers: scrubguard-dev-scrubguard: command: "npx" args: ["-y", "scrubguard-mcp"] ``` ### Netclaw ```json { "McpServers": { "scrubguard-dev-scrubguard": { "Transport": "stdio", "Command": "npx", "Arguments": [ "-y", "scrubguard-mcp" ] } } } ``` ### Vellum ```bash assistant mcp add scrubguard-dev-scrubguard -t stdio -c npx -a -y scrubguard-mcp ``` ### Other ```json { "mcpServers": { "scrubguard-dev-scrubguard": { "command": "npx", "args": [ "-y", "scrubguard-mcp" ] } } } ``` ## Changelog Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims. ### 2026-10-25 (score 66, +15) - [security improvement] Malware scan: unverified → pass ### 2026-10-24 (score 51) First indexed and scored. ## MCP tools (3) ### `scrub_text` (~93 tokens) Scrub or reversibly tokenize PII (emails, SSNs, Luhn-verified credit cards, IBANs, phones, IPv4) and leaked API keys/secrets from text. Input parameters: - `mode` (string): tokenize ([EMAIL_1] + reversible vault), redact, or mask - `text` (string, required): Raw text or prompt to sanitize - `types` (array): Optional whitelist of detector types ### `rehydrate_text` (~67 tokens) Restore tokenized placeholders (e.g., [EMAIL_1], [CREDIT_CARD_1]) in LLM responses using the vault map returned by scrub_text. Input parameters: - `text` (string, required): Text containing placeholder tokens - `vault` (object, required): Key-value vault map from scrub_text ### `scrub_json` (~56 tokens) Recursively scrub PII and sensitive keys (password, secret, api_key, ssn) in a JSON object or array while preserving schema types. Input parameters: - `data` (required): JSON object or array to sanitize - `mode` (string) ## Diagnostics Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp#diagnostics ## Score history - 2026-10-26: 66 - 2026-10-25: 66 - 2026-10-24: 51 ## Common questions ### What is the ScrubGuard MCP server? ScrubGuard is an MCP server listed in the public MCP registry as io.github.scrubguard-dev/scrubguard. Local-first PII and secret scrubber with checksum checks and reversible LLM tokens. This page covers its npm package (scrubguard-mcp). ### Is the ScrubGuard MCP server safe to use? ScrubGuard scores 66 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 26 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm. ### What tools does the ScrubGuard MCP server expose? ScrubGuard exposes 3 tools: scrub_text, rehydrate_text, scrub_json. Their descriptions and schemas cost roughly 216 tokens of context every time the server is loaded. ### Is the ScrubGuard MCP server still maintained? ScrubGuard is still listed as active in the MCP registry. We last reached this channel on 26 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced. ### What licence is the ScrubGuard MCP server under? ScrubGuard declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls. ## Links - npm package: https://www.npmjs.com/package/scrubguard-mcp - Socket report: https://socket.dev/npm/package/scrubguard-mcp - Repository: https://github.com/scrubguard-dev/scrubguard - Website: https://scrubguard-api.scrubguard.workers.dev/ - Changelog RSS feed: https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp.xml - Changelog JSON feed: https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp.json - HTML version of this page: https://verifymcp.io/servers/scrubguard-dev-scrubguard/scrubguard-mcp