PromptGuard runs on your own machine — the client starts it, so there is no endpoint to ping. 65 installs a week from npm.
Scan prompts for injection attacks, redact PII, and audit LLM SDK usage from any MCP client
The linked repository no longer exists on GitHub — it was deleted or made private.
Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add security -- uvx promptguard-mcp-server
{
"mcpServers": {
"security": {
"args": [
"promptguard-mcp-server"
],
"command": "uvx"
}
}
}
[mcp_servers.security]
command = "uvx"
args = ["promptguard-mcp-server"]
{
"mcpServers": {
"security": {
"args": [
"promptguard-mcp-server"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"security": {
"args": [
"promptguard-mcp-server"
],
"command": "uvx"
}
}
}
Security middleware for MCP. Blocks prompt injection, PII leakage, and resource exhaustion.
Scan for prompt injection, secrets, PII, and vet MCP servers before installation
Paid remote MCP for LLM security scans, jailbreak checks, analytics, checkout, and readiness.
MCP security guard + package manager: trust-scored installs, blocks prompt injection and rug-pulls.
Security firewall for AI agents — scans MCP calls for injection, secrets, and risks.
Remote MCP security gateway for auth, redaction, policy enforcement, and audit logging.
Payment firewall for x402: scans for replay, overpayment, PII/secret leaks, prompt-injection.
AI agent security: 7 MCP tools for injection detection, PII scanning, command safety, DLP.
Answers built from our own checks of this server.