AI Firewall MCP vs MCP Shield
A side-by-side look at the AI Firewall MCP and MCP Shield MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose AI Firewall MCP for security work as a local process; choose MCP Shield for security as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose AI Firewall MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
FIREWALL_MODE, SIMILARITY_THRESHOLD, LOG_LEVEL. - You want tools like
analyze_prompt, get_threat_breakdown, sanitize_prompt.
Choose MCP Shield when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
scan_package, scan_directory, check_prompt_injection.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 47/100 · Fair | 57/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | FIREWALL_MODESIMILARITY_THRESHOLDLOG_LEVEL | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 2 |
| Directory activity | 2 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 5 | 4 |
| Full listing | View AI Firewall MCP | View MCP Shield |
Tools & capabilities
AI Firewall MCP tools 5
analyze_promptAnalyze a prompt for injection, jailbreaks, exfiltration, and leakageget_threat_breakdownDetailed per-signal scoring breakdown from the last analysissanitize_promptClean a suspicious prompt while preserving legitimate contentget_firewall_statusHealth check: vector DB size, model status, uptimebenchmark_firewallRun the adversarial test suite and return detection statistics
MCP Shield tools 4
scan_packageDownload an npm MCP package and scan it for malicious patternsscan_directoryScan a local MCP server directory (cloned from GitHub, etc.)check_prompt_injectionCheck tool descriptions or responses for hidden injectionsaudit_supply_chainGet trust score, CVEs, maintainer count, and age for any npm package
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
AI Firewall MCP
{
"mcpServers": {
"ai-firewall-mcp": {
"command": "uvx",
"args": [
"ai-firewall-mcp"
],
"env": {
"FIREWALL_MODE": "YOUR_FIREWALL_MODE_HERE",
"SIMILARITY_THRESHOLD": "YOUR_SIMILARITY_THRESHOLD_HERE",
"LOG_LEVEL": "YOUR_LOG_LEVEL_HERE"
}
}
}
}
MCP Shield
{
"mcpServers": {
"muhannad-hash-mcp-shield": {
"command": "npx",
"args": [
"-y",
"mcp-shield"
]
}
}
}
Frequently asked questions
AI Firewall MCP is categorized under Security and uses a local stdio subprocess. MCP Shield belongs to Security and uses a local stdio subprocess. Pick AI Firewall MCP for security work and MCP Shield for security.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
AI Firewall MCP has no declared pricing — check the project's own site. MCP Shield is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add ai-firewall-mcp and muhannad-hash-mcp-shield as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, AI Firewall MCP has a quality signal of 47/100 (Fair) with 2 views, 0 installs and 0 GitHub stars. MCP Shield has 57/100 (Good) with 3 views, 0 installs and 2 GitHub stars.