A POSIX-compatible hard real-time microkernel with agent-driven formal verification — avionics-grade correctness guarantees, without the cost of traditional proof engineering.
Classical formal verification requires years of effort from specialist proof engineers — putting seL4-level guarantees out of reach for most product teams. Topos changes this. LLM-based agents generate and maintain Isabelle/HOL proofs automatically, while every proof is still machine-checked. Verification becomes a CI step, not a multi-year project.
Built from first principles — no legacy baggage, no retrofitted safety layers.
Agent-driven automation writes and maintains Isabelle/HOL proofs as the kernel evolves. All proofs are machine-checked — seL4-level assurance at product scale.
Optimized microkernel IPC delivers kernel-bypass-class performance as an architectural property. Designed for DPI engines, trading gateways, industrial controllers.
No legacy layers. Stable APIs. POSIX compatible. Include only the components you need — modular, minimal, maintainable. Build drivers in any language.
Real kernel output from our RISC-V prototype. Type commands or click the chips to explore live.
Classical formal verification projects deliver exceptional correctness guarantees — but they rely on large teams of specialist proof engineers and years of manual effort, placing them out of reach for most product organizations.
Topos uses LLM-based agents to automatically generate and maintain Isabelle/HOL proofs as the kernel evolves. All proofs are still machine-checked — agents produce the scripts; the theorem prover verifies them. No mathematical shortcut is taken.
The result: verification as a CI step, not a multi-year project. Proofs stay valid as your system evolves — automatically.
Discuss your requirementsWritten in verification-friendly C from the ground up, structured to expose formal semantics cleanly to downstream proof tools.
LLM agents generate Isabelle/HOL proof scripts for each kernel component and adapt them automatically as code changes.
Every proof is checked by Isabelle/HOL. No agent-produced proof can pass without satisfying the formal specification.
Proofs run in CI. Every kernel commit maintains the full formal specification automatically, not manually.
Microkernel architecture isolates drivers and services. Build components in any language without risking kernel stability.
Formal verification provides mathematical proof of correct behavior. Strong isolation prevents faults from propagating across subsystems.
Scales from constrained IoT to complex industrial systems. Unify your embedded software stack around a single verified foundation.
Run existing POSIX software with minimal changes. A straightforward adoption path that dramatically reduces migration risk.
Critical tasks execute with mathematically bounded latency. Deterministic scheduling — no surprises under any load condition.
Designed for DPI engines, trading gateways, and industrial controllers. Kernel-bypass performance as an architectural property.
For safety-critical systems, you can't afford to discover bugs at runtime. Mathematical proof of correctness is the only standard that genuinely eliminates entire classes of failure.
The real cost of Linux in high-load embedded isn't the license — it's the years of hardening, patching, and kernel bypass hacks just to get deterministic behavior. There has to be a better baseline.
We need something between a research kernel and a general-purpose OS. Formally verified, POSIX compatible, maintainable. Right now that gap is real and it's costing the industry.
If AI agents can bring formal verification to every kernel release cycle — not just flagship research projects — that would be a genuine step change for the safety of deployed systems.
5 years of microkernel R&D behind our current prototype. Formal verification is being integrated now.
Functional microkernel ported to RISC-V and OpenRISC architectures.
MMU support, user-space tasks, functional system calls operational.
Kernel written in C with structure designed for formal proofs from day one.
Automated Isabelle/HOL proof generation being integrated with kernel CI.
We're working with early partners in avionics, industrial automation, and network infrastructure. Let's discuss your specific requirements and deployment scenario.