Compliance infrastructure for institutional finance.
Nexus runs checks across MiFID II, DORA, EMIR, SFDR, Basel IV, and FRTB. Every workflow is policy-gated. Every AI action is logged. Every breach needs human sign-off before execution continues.
▌6 EU regulatory regimes. 31 distinct compliance rule IDs on the public evaluator surface. 45 tools in the Hardalion action registry. One audit chain.
What Nexus does in production
Capabilities exercised by the compliance package and orchestrator today.
Policy checks in milliseconds
Every pretrade check returns article citations, evidence, and a remediation suggestion. Not a single boolean. Proof you can file.
POST /api/v1/public/compliance/mifid/pretrade Authorization: Bearer hnx_live_...
Breach stops the workflow
When a rule fails, the workflow halts. It does not continue until a compliance officer reviews the exception. The decision is logged with reason, actor, and timestamp.
PAUSED_AWAITING_REVIEWEvery action is provable
Agent actions, compliance checks, and human overrides append to an audit trail. Entries chain to prior hashes with SHA-256. Export for regulatory review.
{
"hashVersion": 2,
"hash": "sha256:...",
"previousHash": "sha256:...",
"actor": "agent:compliance_checker",
"timestamp": "2026-04-17T12:00:00.000Z"
}Engineering targets
Targets from the Nexus roadmap. Contract SLAs are agreed per deployment.
How it works
Connect
Ingest data from SQL, CSV, Bloomberg, or REST endpoints. Tenant boundaries apply to every connector.
Orchestrate
Agents run checks against live regulatory rules. A breach pauses the workflow until policy allows resume.
Review and export
Exceptions route to your compliance team. The audit chain exports for internal and regulator review.
Built for developers and compliance teams
The AIaaS API at api.hardalion.com exposes compliance, analytics, and agent endpoints. OpenAPI specs, client libraries, and sandbox access ship on every plan.
curl -X POST https://api.hardalion.com/api/v1/public/compliance/dora/incident \
-H "Authorization: Bearer hnx_live_..." \
-H "Content-Type: application/json" \
-d '{
"incidentType": "ICT_OUTAGE",
"duration": 280,
"affectedSystems": ["trading-platform"],
"detectedAt": "2026-04-17T09:00:00Z"
}'Early user feedback
Exception volume dropped because agents prepare the packet and cite the rule before anything hits a human queue.
One audit identifier ties together the agent run, approvals, and exports. That traceability matters when the board or a supervisor asks what occurred.
Commercially designed for scale and growth
No card required
For individuals and small teams exploring Nexus.
- 1 seat
- 2 data source connections
- Email support
- 30-day audit window in sandbox
- Guided first compliance check
Quote after scoping
For teams running production workflows with SLAs.
- Unlimited agents
- Unlimited integrations
- Priority support and named CSM
- API access
- 1-year audit retention
- 10-seat audit trail export
Custom security and deployment
For large firms with on-premises or dedicated cloud requirements.
- Everything in Pro
- On-premises option
- Dedicated engineering
- Regulatory compliance package
- SSO and SAML (roadmap aligned)
Request pilot access
Nexus pilots run for 90 days. We work with your compliance team to connect real workflows and validate the audit chain against your obligations. The first 10 pilots are 40% off.