Introducing open source Cambrian Core. Explore
ANSWERS WITH EVIDENCE

Answers that show where they came from

Ask your company’s memory a question and get a short answer where every claim points to the passage behind it. When the evidence is not there, it says so instead of guessing.

Answers in Cambrian CoreOpen source
// An answer as Studio receives it (shortened)
{
  "status": "answer",
  "answer": "Refunds over 500 EUR need a manager's sign-off [1]. Since March, finance also reviews them weekly [2].",
  "citations": [
    {
      "marker": 1,
      "source": "handbook/refunds.md",
      "section_path": "Refunds > Approval",
      "text": "Refunds above 500 EUR require sign-off from the team manager."
    },
    {
      "marker": 2,
      "source": "finance-weekly-2026-03-04",
      "text": "From this week, finance reviews all approved refunds every Friday."
    }
  ]
}
How it works

An answer you can check in one click

Every claim cited

Inline [n] markers point to the exact passage behind each claim, with its source and section.

Abstains instead of guessing

When the evidence does not answer the question, the result says so. Answers are written only from the evidence that was retrieved.

Says when access was the reason

If the asker’s access rules hid the answer, the response carries a policy note instead of pretending the records are silent.

Multi-step retrieval

A retrieval loop breaks hard questions into smaller ones and gathers evidence for each before anything is written.

Security

Secure by design, not by checklist

Cambrian has no certifications yet. What it has is an architecture where access is enforced in the kernel, every decision is explained, and you run it yourself.

Self-hosted
No grant, no tool
Explained denials
Least privilege, delegated
Open source

FAQs

In the memory page of Cambrian Studio, and through Core’s operator API. Agents use the evidence lane instead: recall returns ranked passages, and the agent reasons over them with its own instructions.

Build on Cambrian Core

Core, Studio, the CLI, and the SDKs are free and open source. Install Core, then connect your first agent with the Python SDK.