Answer 'prove it' with a signature, not a slide
Surfil turns agent activity into offline-verifiable evidence: signed attestations, control-mapped bundles, and a tamper-evident trail your auditors check themselves.
The chain that removes it
Compliance reviews ask for evidence, not assurances. Screenshots and self-reported logs do not hold up, and re-collecting it every audit is expensive.
Attest with Proof
Agent actions are signed into an append-only log that verifies against a public key, no vendor trust required.
Bundle with Charter
Controls map to the signed facts you already generate and export as offline-verifiable evidence bundles.
Hand it over
An auditor runs surfil verify against the bundle - no account, no network call, no trusting a dashboard.
Why it holds up in review
Evidence, never 'certified'
Nothing at Surfil is ever certified; we produce verifiable evidence and let your auditor make the call.
Reuses what you have
Bundles assemble from facts and attestations already on the spine, so there is no separate collection pass.
Zero-trace holds
The evidence is metadata and signatures; your source never appears in a bundle in order to prove anything.
More in this view
Same spine, a neighbouring starting point.
Cut token spend
Surfil trims the context agents never needed, measures the cache premium you are paying, and names the writes that are never read back - then signs the measured saving.
See this path →Block risky calls
Guard evaluates every tool call on-device before execution - catching secrets and prompt injection pre-flight, and failing closed whenever a call is ambiguous.
See this path →Portable memory
Mind gives your agents local, encrypted memory with provenance on every fact - and it follows you across agents instead of living inside one tool's silo.
See this path →Turn on the first stage today
The install is reversible byte-for-byte, and the first signed receipt arrives after one normal week of traffic.