Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.
Connect Runs on your machine
claude mcp add injectshield -e INJECTSHIELD_API_KEY=<INJECTSHIELD_API_KEY> -e INJECTSHIELD_API_BASE=<INJECTSHIELD_API_BASE> -- npx -y @injectshield/[email protected]{
"mcpServers": {
"injectshield": {
"command": "npx",
"args": [
"-y",
"@injectshield/[email protected]"
],
"env": {
"INJECTSHIELD_API_KEY": "<INJECTSHIELD_API_KEY>",
"INJECTSHIELD_API_BASE": "<INJECTSHIELD_API_BASE>"
}
}
}
}{
"mcpServers": {
"injectshield": {
"command": "npx",
"args": [
"-y",
"@injectshield/[email protected]"
],
"env": {
"INJECTSHIELD_API_KEY": "<INJECTSHIELD_API_KEY>",
"INJECTSHIELD_API_BASE": "<INJECTSHIELD_API_BASE>"
}
}
}
}{
"servers": {
"injectshield": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@injectshield/[email protected]"
],
"env": {
"INJECTSHIELD_API_KEY": "<INJECTSHIELD_API_KEY>",
"INJECTSHIELD_API_BASE": "<INJECTSHIELD_API_BASE>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
INJECTSHIELD_API_KEYRequired, secret | API key from https://injectshield.dev (free tier: 10K req/mo). |
INJECTSHIELD_API_BASEOptional | Override the API base URL for self-hosted deployments. |
Details
| Package | @injectshield/[email protected] (NPM, stdio) |
| First published | 6 May 2026 |
| Last updated | 6 May 2026 |
| Registry name | io.github.bch1212/injectshield |
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