Arkna
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The black-box recorder for AI agents.

Your agents approve refunds, move money, and make calls on their own. Arkna records every step an agent takes, so when you need to see what happened, it's already there.

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Arkna Evidence
incident · IR-4471 chain intact
Replay · agent run
Refund approved outside policy
support-agent · 2030-06-14 09:41 UTC
00.0s
Received refund request
order ··· redacted · amount $412 · channel chat
00.4s
Read refund policy §4.2
retrieved · 3 clauses in context
00.9s
Approved: outside policy
confidence 0.62 · threshold 0.80 · reason “customer history positive”
01.1s
Issued refund
action committed · logged · receipt sent
01.3s
Sealed
hash a91f3c7d · chain intact
Verify hash chain
a91f
3c7d
f042
b8e6
5d10
e7c2 ✓
chain intact · 6/6 verified
Export regulator pack
EU AI Act · Annex IVready
ISO/IEC 42001ready
APRA CPS 230 / 234ready
Open evidence pack
01The problem

One of your agents will do something you didn't expect.

A refund it shouldn't have approved. A call it got wrong. When you go looking for what happened, the run is scattered across systems, and some of it is already gone. Arkna keeps the whole run in one place: every step the agent took, in order, sealed so it can't be quietly changed after the fact.

Without a record · one incident, five places
Model call logsprovider console
Tool + API callsapp logs
What changed in the DBno diff kept
The chat transcriptsupport tool
The human hand-offrotated out
02Two products. One record.

Record what happened. Open it whenever you need to.

ArknaRecorder

Captures what your agents did, without seeing who.

Reads what your stack already emits. Redacts personal data on the wire. Hash-chains every event so the record can't be edited after the fact.

// drop-in observer
import { arkna } from '@arkna/recorder'
arkna.observe(agentRun)
reading existing traces…
redacting PII · 14 fields
hash-chaining · 6 events
✓ sealed · sha256:a91f3c7d
ArknaEvidence

Replay any incident. Export the pack the regulator already recognises.

Walk through any agent run frame by frame, verify the hash chain in the browser, and export a packet pre-mapped to EU AI Act Annex IV, ISO 42001, and APRA CPS 230 / 234.

incident · IR-4471 · replayverified
00.0s
Request received
00.4s
Policy retrieved
00.9s
Approved · outside policy
01.1s
Refund issued
03How it works

From agent action to verifiable evidence, in one chain.

STEP 01

Observe

Read what your agents already emit. Drop-in observer for OpenAI Agents, Anthropic, LangGraph, custom stacks.

STEP 02

Redact

Strip personal data on the wire. The record proves what happened without exposing who.

STEP 03

Seal

Hash-chain end to end. A single altered byte breaks the chain visibly. Tamper-evidence by construction.

STEP 04

Replay

Replay any decision, verify the chain in the browser, export the regulator pack. Evidence on demand.

04Where the stakes are real

Where your agents make decisions that carry weight.

Financial services

Prove every credit, refund, and KYC decision your agents made.

Operational resilience for the AI making the decisions. APRA CPS 230 / 234, DORA, OSFI E-23 evidence, generated automatically.

APRA CPS 230DORAOSFI E-23
Healthcare

A complete record of clinical and operational AI, without exposing patient data.

PHI-free by default. Replay triage, intake, and prior-auth decisions without exposing patient data.

HIPAAHITRUSTFDA SaMD
Government & defence

A verifiable record for decisions taken on behalf of the public.

Hash chains verifiable on air-gapped review systems, by anyone you choose.

NIST AI RMFFedRAMPEU AI Act
05Frameworks, mapped

Every framework, every clause, pre-mapped.

When the auditor asks for evidence under a specific clause, you click. Arkna already knows which events satisfy it.

EU AI Act
Annex IV
Record-keeping for high-risk systems.
ISO/IEC
42001 AIMS
AI management system clauses.
APRA
CPS 230 / 234
Operational risk & information security.
NIST
AI RMF 1.0
Measure & manage functions.
TGA
SaMD reporting
Adverse-event records for AI medical-device software.
HIPAA
§164 Subpart C
Security & audit controls.
Arkna
The black-box recorder for AI agents.

See exactly what your agents did, whenever you need to.

The assurance your board needs to let AI make the call. A 30-minute review with your risk and engineering leads: we walk through your agent stack and show you what the record would look like.

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