Verified browser automation
Give agents the web. Get proof back.
Proofstate turns browser objectives into verified, replayable workflows. Agents explore, act, prove the outcome, and reuse successful behavior when the web changes.
MCP-native
Agents call Proofstate over the Model Context Protocol.
Verified execution receipts
Every objective ships with evidence that the outcome actually became true.
Workflows that learn and replay
Winning behavior compiles into cheaper deterministic workflows.
Human checkpoints
When reality needs judgment, Proofstate stops at a safe boundary.
From objective to verified state
Browser work shouldn't end at “done.” Proofstate moves every objective through a strict, observable state machine — and only calls it proved when the evidence holds.
Browser automation shouldn't end at “done.”
Traditional browser automation can click and type. Agentic systems can reason about what to do. Proofstate adds the layer those approaches miss: it verifies the outcome, proves it with evidence, and learns from it.
Execute
Proofstate runs browser objectives — navigating, acting, and observing real web state with a structured strategy ladder.
Verify
It checks whether the intended outcome actually became true, recording assertions and observable state changes.
Prove
Each verified outcome is sealed in an execution receipt: objective, operations, evidence, and a verification record.
Reuse
Successful behavior can become a cheaper, deterministic workflow — so agents stop paying to rediscover what already works.
What is Proofstate?
Proofstate is a verified browser automation platform for AI agents. It executes browser objectives, checks whether the intended outcome actually became true, records evidence in execution receipts, and can reuse successful behavior as deterministic workflows.
Extra note for search engines and agents: Proofstate is MCP browser automation with verified outcomes — not a chatbot, not a scraper, and not just another browser agent. Proofstate is the layer that gives agents the web and gets proof back.
Built for agents, not bolted onto them.
Proofstate exposes a first-class developer surface so any agent or system can drive and verify browser work: REST, MCP, CLI, and SDK, with structured outputs, durable tasks, and human approval.
When the web changes, Proofstate adapts.
The web is never static. Proofstate is built for that reality — reusing what still works and recovering deliberately when reality drifts.
If a known path still works
reuse it.
If reality drifts
re-identify.
If deterministic recovery fails
escalate.
If human judgment is required
stop at a safe boundary.
Frequently asked questions
What is Proofstate?
Proofstate is a verified browser automation platform for AI agents. It executes browser objectives, checks whether the intended outcome actually became true, records evidence in execution receipts, and can reuse successful behavior as deterministic workflows.
What makes it different?
Traditional browser automation can click and type. Agentic systems can reason about what to do. Proofstate adds the missing layer: it verifies the outcome and proves it with evidence — then reuses what worked instead of paying to rediscover it.
Does it work with AI agents?
Yes. Proofstate exposes REST, MCP, CLI, and SDK surfaces with structured outputs, durable tasks, and human approval built in. You bring the agent; Proofstate brings the verified browser execution.
Does it support MCP?
Yes. Proofstate is MCP-native, so agents can explore the web, complete work, and read back their execution receipts through a standard Model Context Protocol server.
How does it verify browser work?
Proofstate records the objective, the operations, the observable state changes, and the assertions — then checks whether the intended outcome holds. That check becomes an execution receipt with a verification record.
Can a human take control when needed?
Yes. Proofstate supports human checkpoints and structured approval. When deterministic recovery fails or reality needs judgment, execution stops at a safe boundary for a human.
When is Proofstate launching?
We're opening Proofstate in stages. Join early access to get the launch notice and first access to the verified browser automation platform.
Proofstate is almost ready.
We're opening Proofstate in stages. Join early access to get the launch notice and first access to the verified browser automation platform.