MCPflare
Use local MCP servers securely with zero-trust isolation while reducing context window token usage by up to 98%.
Quick Start
- Click the shield icon 🛡️ in the activity bar (left sidebar)
- Your MCP servers are auto-imported from Claude, Cursor, and Copilot configs
- Toggle protection on for any MCP you want to secure
Tip: Use Ctrl+Shift+P → "MCPflare: Open Settings" to open the panel anytime.
Features
- Auto-Discovery: Automatically detects MCP servers from Claude Code, Cursor, and GitHub Copilot configurations
- Network Allowlists: Control which hosts each MCP can access
- File System Controls: Restrict read/write access to specific directories
- Resource Limits: Set execution time, memory, and API call limits
- Per-MCP Settings: Configure each MCP server independently
How It Works
- Click the shield icon in the activity bar to open MCPflare
- Your MCP servers are automatically discovered from IDE configurations
- Toggle guard protection on for any MCP you want to isolate
- Configure network, file system, and resource settings as needed
Configuration Options
Network Access
| Option |
Description |
| Enable Network Access |
Allow the MCP to make outbound requests |
| Allowed Hosts |
Specific domains that can be accessed (e.g., api.github.com) |
| Allow Localhost |
Permit requests to localhost/127.0.0.1 |
File System Access
| Option |
Description |
| Enable File System |
Allow the MCP to access files |
| Read Paths |
Directories the MCP can read from |
| Write Paths |
Directories the MCP can write to |
Resource Limits
| Option |
Default |
Description |
| Max Execution Time |
30s |
Maximum time per execution |
| Max Memory |
128MB |
Memory limit |
| Max MCP Calls |
100 |
Maximum tool calls per execution |
Security
MCPflare uses Cloudflare Workers isolates for execution:
- Network Isolation: All outbound access blocked by default
- Process Isolation: Each execution in a fresh isolate
- Configurable Allowlists: Granular control over what each MCP can access
Commands
MCPflare: Open Settings - Open the configuration panelMCPflare: Refresh MCP List - Re-scan for MCP serversMCPflare: Import from IDE Config - Import MCP configurations
Support
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