Portable execution evidence via .epi artifacts

Feature Requests Nodes
1

It would help if there was a node for:

My use case:

AI workflows (especially those using LLMs) often need auditability for compliance and debugging.
Currently, n8n executions are logged internally, but logs are:

  • not portable
  • not verifiable
  • not tamper-evident
    With an EPI Recorder node, users could attach it at the end of a workflow to:
  • capture execution data
  • generate a .epi artifact
  • share it for auditing, compliance, or external verification
    This is especially useful for:
  • AI governance (EU AI Act-style requirements)
  • debugging complex agent workflows
  • sharing reproducible execution traces

Any resources to support this?

Are you willing to work on this?

Yes — I’ve already built a working prototype node and can extend it further based on feedback.

2

@Afridi_Ibrahim — Came across your request for portable, tamper-evident execution-evidence artifacts (.epi) for n8n workflows. It was the clearest articulation of the gap between built-in application logs and what an EU AI Act / GRC audit actually requires that I’ve seen.

We’ve been building an airlock runtime for self-hosted execution environments (at https://railcall.ai) that outputs cryptographically signed JSON receipts (capturing exact inputs, outputs, timestamps, and key signatures) for every tool call and workflow step.

Did you end up building a custom workaround for your setup, or is portable execution evidence still an open gap for you guys? Would love to share what we built if you’re open to comparing notes.