MCP Firewall vs Flare
A side-by-side look at the MCP Firewall and Flare MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
F
FlareSecurity · Remote HTTP/SSEScan a running app or repo for leaked secrets, exposed routes and open RLS, and verify live keys37FairAuth: not declaredVerdict: choose MCP Firewall for security work as a local process; choose Flare for security over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Firewall when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
FChoose Flare when
- You need dedicated capabilities in the Security domain.
- You prefer a remote HTTP/SSE transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | F Flare | |
|---|---|---|
| Category | Security | Security |
| Quality signal | 56/100 · Good | 37/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 5 | — |
| Directory activity | 5 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View MCP Firewall | View Flare |
Tools & capabilities
MCP Firewall tools
No tool names declared yet. Check the project README from the listing page.
Flare tools
No tool names declared yet. Check the project README from the listing page.
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.
MCP Firewall
{
"mcpServers": {
"behrensd-mcp-firewall": {
"command": "npx",
"args": [
"-y",
"mcpwall"
]
}
}
}
Flare
{
"mcpServers": {
"flare": {
"url": "https://flarehq.dev/mcp"
}
}
}
Frequently asked questions
MCP Firewall is categorized under Security and uses a local stdio subprocess. Flare belongs to Security and uses a remote HTTP/SSE transport. Pick MCP Firewall for security work and Flare 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.
MCP Firewall is listed as free. Auth: no auth required. Flare has no declared pricing — check the project's own site. 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 behrensd-mcp-firewall and flare as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Firewall has a quality signal of 56/100 (Good) with 5 views, 0 installs and 5 GitHub stars. Flare has 37/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.