Prompt Guard MCP server
online · 100% uptimeScans untrusted web pages, emails, or tool outputs for prompt injections and returns sanitized tex
Little public usage data yet
Reviews
Write oneNobody has reviewed Prompt Guard yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
Prompt Guard tools (2)
write = sends, deletes, buys or postsget_agent_wallet_statusFreeReturns the calling agent's remaining free quota, USD balance, and total tokens saved.
scan_prompt_injectionFreeB2A Indirect Prompt Injection & Jailbreak Firewall (0.005 USDC via x402): Scans untrusted web pages, emails, or tool outputs for prompt injections and returns sanitized text.
Public scan report
scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 224ms20/20
- Tool poisoning2 tool descriptions checked15/15
- Auth qualityopen endpoint, read-only tools10/15
- Maintenanceno repository listed3/15
- Maintainer identityno repository or website to verify2/10
Findings (1)
- lowNo source repository listed
maint.no-repo
How Prompt Guard compares
Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 67/100
- higher than 30% of 4,464 AI and agents servers
- Tools
- 2
- the typical AI and agents server has 6
- Tools that change things
- 0%
- typical: 0%. Fewer write tools means less an agent can break
- Uptime
- 100%
- of our recent checks; the typical remote AI and agents server answers 100%
- Response time
- 74 ms
- faster than 88% of 2,333 AI and agents servers
What its tools let an agent do: 2 read
Install Prompt Guard in Claude Code, Cursor or VS Code
claude mcp add --transport http prompt-guard-mcp https://prompt-guard-72343955726.us-central1.run.app/mcp/prompt-guard
Prompt Guard: common questions
- Is Prompt Guard MCP server safe?
- With care: it is graded C, so read the findings first (67/100). Read the Prompt Guard safety report
- How do I install Prompt Guard?
- It runs remotely at prompt-guard-72343955726.us-central1.run.app. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Prompt Guard need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is Prompt Guard maintained?
- The latest release is v1.1.1.
- Is Prompt Guard up?
- 100% of our last 28 checks got an answer. We check remote servers about four times a day.
- What can I use instead of Prompt Guard?
- Servers from other publishers that do the same job: Agent Security Scanner MCP server, llmtrim MCP server and Robin: AI-Powered Dark Web OSINT MCP server.
- How does Prompt Guard compare with other AI and agents MCP servers?
- safety score 67/100 (higher than 30% of 4,464 AI and agents servers); tools 2 (the typical AI and agents server has 6); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.
Alternatives to Prompt Guard
Same job from other publishers: the closest match first, then the best rated.
- Agent Security ScannerSecurity layer for AI agents: blocks prompt injection, detects fake packages, scans vulnerabilities.not reviewedEstablishedC
- llmtrimMCP server and proxy that compresses LLM prompts, tool output, and replies to cut token cost.not reviewedEstablishedA
- Robin: AI-Powered Dark Web OSINTDark web OSINT over Tor: search onion engines, scrape pages, report with your own model.not reviewedEstablishedA
- CharlotteRenders web pages into structured, agent-readable representations using headless Chromium.not reviewedEstablishedA
- agent-deviceOpen source device layer for AI agents: control mobile, web, TV, and desktop apps over MCPnot reviewedWidely usedA
