# OpenViking

> Context database for agents that organizes memory and skills like a file system

- Category: Agents & dev (`agents`)
- Tags: `open-source`, `free`
- Official: https://github.com/volcengine/OpenViking
- Wunderlust: https://wunderlust.xyz/r/openviking
- Image: https://wunderlust.xyz/media/openviking-poster.jpg
- Video preview: https://wunderlust.xyz/media/openviking.webm
- Added: 2026-11-05

## What it is

Open source context database that stores the agent's knowledge, memory and skills in a virtual file system (viking://) that can be inspected and edited.

## What it’s for

For developers who want visible memory and context retrieval, with search limited to subtrees.

## Benefits

- Agents use ls, tree, read, write and grep over the context
- Three-level summaries (L0, L1, L2) to check relevance before loading the whole file
- Session memories saved as editable markdown
- Integrations with Claude Code, Codex, Cursor, MCP, LangChain and SDKs

## Caveats

- According to the project, it scores 80 to 83% on the LoCoMo benchmark versus 24 to 57% for the agents' native memory; the project's own numbers.
- The AGPLv3 server requires Python 3.10+ and a provider with embedding and VLM models; there is a managed SaaS (50 free files) and a commercial licensed edition, with no prices on the page.
- Likely match: associated by name and description.

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