Injectshield

Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.

Connector by bch1212 · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)

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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/bch1212-injectshield

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Prompt-injection firewall for AI agents — scan untrusted text before LLM calls.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 3 read · 0 write · 0 deleteRead-only
Secrets: 1 (API keys, tokens or passwords)
Install scripts: Not scanned yet
Runs as: Node.js package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 3 · Look things up without changing anything.

patterns
scan
scan_url

Secrets and settings it asks for

Secrets: values you paste in that let it act as you.

INJECTSHIELD_API_KEY

Other settings (environment variables or headers).

INJECTSHIELD_API_BASE

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

patterns
List supported threat categories, context kinds, and sensitivity levels. Use this to discover what threat_type values scan() can return.
scan
Scan text for prompt-injection. Use BEFORE passing any untrusted text (web pages, file contents, user inputs, git commits, tool outputs) into another LLM call. Returns a verdict (safe/unsafe), a confidence score, the threat category, the matched pattern IDs, and an optional sanitized version with injection spans redacted.
scan_url
Fetch a URL and scan its body for prompt-injection. Useful before feeding scraped page content into another LLM call. Sets the context to web_content automatically.

Signals

Stars: 0
Forks: 0
Open issues: 0
Weekly downloads: 9
Last commit (this folder): May 6, 2026 (5 months ago)
Last release: Jun 6, 2026 (4 months ago)
Last package publish: May 6, 2026 (5 months ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name: io.github.bch1212/injectshield
Version: 0.1.4
Auth: API key
Packages: npm @injectshield/mcp
License: MIT
Repository: github.com/bch1212/injectshield
Website: injectshield.dev
First seen: Oct 24, 2026
Last checked: Nov 1, 2026
Source: Official MCP Registry github-graphql

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Cite this page

Injectshield MCP server. Agent Mart. https://agentmart.dev/connectors/bch1212-injectshield (last updated 2026-11-01)