In the AI Enablement Stack, Blekline is Layer 4 and E2B is Layer 1 (Firecracker microVM sandboxes for AI agents).
| Layer | Product | Role |
|---|---|---|
| L4 | Blekline | Mask prompts, classify risk, govern MCP tool calls, audit |
| L1 | E2B | Isolated code interpreter, desktop sandboxes, MCP tools |
Wiring
- Connect
@blekline/mcp-proxy— MCP proxy - Set
BLEKLINE_DOWNSTREAM_MCP_COMMANDto E2B MCP server - Provide
E2B_API_KEY
export BLEKLINE_DOWNSTREAM_MCP_COMMAND="npx,-y,@e2b/mcp-server"
export BLEKLINE_DOWNSTREAM_SERVER=e2b
export E2B_API_KEY=...
Flow: L5 Agent → L4 Blekline proxy → L1 E2B MCP → sandbox.
See E2B documentation for SDK and MCP server setup.
Next steps: Sandbox providers · AI Enablement Stack · MCP Cursor setup · Open workspace