Vela MCP Server: Let AI Agents Securely Monitor and Control Your Linux Laptop
mikesplore · reddit · 2026-08-11
Developer mikesplore introduced Vela, an MCP (Model Context Protocol) bridge server that allows AI agents to securely monitor and control remote Linux hosts, preventing models from hallucinating shell commands.
Core Architecture & Components:
- Vela: On-device Linux agent with a REST API bound strictly to loopback.
- velavps: Cloud relay broker enabling NAT traversal and tenant isolation via outbound tunnels.
- vela-mcp: Stateless MCP bridge exposing 150+ tools with host-driven capability filtering.
- vela-android: Mobile control plane.
Key Design Choices:
- Security-first: The relay never connects inbound to the host; the tunnel agent dials out.
- Multitenancy is enforced via relay-secret authentication validated on every request.
- MCP acts as a pure adapter, exposing capabilities without owning them.
The stack uses FastAPI serving Streamable HTTP, written entirely in Python except for the Android component.
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