MCP- and A2A-native: agents, tools and data interoperate on open standards. No walled garden, no lock-in — plug into what you already run.
Proprietary platforms quietly become walled gardens. Every custom integration is a deeper hook, and leaving gets more expensive by the quarter — openness is the only thing that keeps the exit door open.
Proprietary platforms quietly become walled gardens. Every custom integration is a deeper hook, and leaving gets more expensive by the quarter. Interoperability arrives on the vendor's terms — if at all — and the cost of switching is engineered to climb until it isn't worth paying. The fix isn't a better integration roadmap; it's open standards at the foundation.
Shipped today: an MCP-native runtime, the A2A protocol and API-first infrastructure — open standards running in production, not on a roadmap.
MCP and A2A support is now broadly adopted across the major platforms.
Brain-Stem is open by default — interoperability is the foundation, not a feature, so lock-in is never the trade.
See Brain-Stem interoperate over MCP and A2A with your existing tools and data — open standards, no walled garden, no lock-in.
Open standards. No walled garden. Free to leave — by design.