n8n (Visual / TypeScript) — Visual workflow automation with AI Agent nodes. Easy to build, easy to ship — which is exactly why production cost and governance matter.
What you get
- End-to-end tracing of every Workflow, tool call, and LLM invocation
- Per-n8n-agent, per-user, per-tenant cost attribution
- Runtime policy enforcement — block, route, or approve tool calls
- Tamper-evident audit logs aligned to SOC 2, ISO 42001, and EU AI Act expectations
- Outcome evaluation with regression detection on every change
- Works with n8n in production today
Install and integrate
Install via n8n Community Nodes// In n8n:
// Settings → Community Nodes → install n8n-nodes-prefactor
// Add "Prefactor: Wrap Workflow" node at workflow start
// Or use webhook integration for n8n Cloud (no install)Common problems Prefactor solves for n8n teams
1. No native cost visibility per workflow or AI Agent node
2. AI Agents can call HTTP Request against production with no review
3. Workflows that loop on a failing tool can rack up $1000s before detection
4. Audit trail is per-execution, not per-workflow-version
5. No native A/B testing for workflow versions
Supported capabilities
| Capability | Status |
|---|---|
| [Observability](/integrations/n8n/observability) | Supported |
| [Monitoring](/integrations/n8n/monitoring) | Supported |
| [Cost Tracking](/integrations/n8n/cost-tracking) | Supported |
| [Policy Enforcement](/integrations/n8n/policy-enforcement) | Supported |
| [Audit Logging](/integrations/n8n/audit-logging) | Supported |
| [Evaluation](/integrations/n8n/evaluation) | Supported |
| [Guardrails](/integrations/n8n/guardrails) | Supported |
| [Security](/integrations/n8n/security) | Supported |
| [Governance](/integrations/n8n/governance) | Supported |
| [Compliance](/integrations/n8n/compliance) | Supported |
FAQ
Does Prefactor route my n8n traffic through a proxy? No. Prefactor instruments via SDK. Your LLM calls go directly to your model provider. We never sit in the request path.
Will Prefactor add latency to my n8n agent? The SDK adds ~2-5ms per traced span. Telemetry ships asynchronously in batches. No synchronous network call to Prefactor in your hot path unless you opt into blocking policy enforcement.
Can I use Prefactor alongside other tools (Langfuse, LangSmith, etc.)? Yes. They solve different problems and don't conflict. Many teams use Prefactor as the governance layer and keep dev-time tracing tools for prompt iteration.
Is Prefactor self-hostable? Yes, on Business and Enterprise plans. Data plane and control plane can both run in your VPC.
How do I add Prefactor to an existing production n8n app? The wrap pattern is non-invasive. One line changed. Existing tests, chains, and tools work unchanged.
Related
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