Leviathan
Leviathan is a single binary that builds a ranked full-text index from records in formats including JSONL, JSON, CSV/TSV, and SQLite. Agents can search the index in plain language and receive short result cards with citations; it also offers an optional MCP server.
What it does
Use it to help agents search large datasets and retrieve relevant records or maintain explicit, queryable memory.
- Availability
- Prebuilt binaries are on Releases; installable with cargo
- Pricing model
- Not stated
- Deployment
- Single binary; index is one SQLite file
- Privacy
- Writes are explicit; secrets are refused; offline unless you serve or connect over HTTP
- Licence
- Apache-2.0
Capability
Modality
Access
Deployment
Pricing
Target user
Evidence
6 claims- Leviathan indexes JSONL, JSON, CSV/TSV, SQLite, and database CLI output. [1]
Leviathan is a single binary that turns records (JSONL, JSON, CSV/TSV,
GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights. - Agent queries return ranked result cards with citations. [1]
- Optional MCP support provides four read-only stdio tools. [1]
**MCP (optional):** `leviathan mcp` serves four read-only stdio tools
GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights. - Prebuilt binaries are available on the GitHub Releases page. [1]
Prebuilt binaries are on [Releases](https://github.com/elstongun/leviathan/releases).
GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights. - Leviathan can serve its tools over Streamable HTTP MCP, REST, and OpenAPI. [1]
Streamable HTTP MCP, REST and OpenAPI, with a bearer token or OAuth 2.1, so
GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights. - Leviathan refuses secrets in its optional memory feature. [1]
Optional read/write memory for agents, in its own SQLite file.
GitHub new repositories. Quoted text is outside CC BY 4.0 and keeps its original rights.
Sources
1
1
GitHub new repositoriesOwner-controlled
https://github.com/elstongun/leviathan
Retrieved 2026-10-27 01:28 UTC
Verified
Versions
3| Version | Effective | Change | Changed fields | State |
|---|---|---|---|---|
| 3 | 2026-10-09 23:41 UTC | material change | pricing, availability, deployment, privacy | Current |
| 2 | 2026-10-07 02:27 UTC | material change | pricing, availability, pricing model, deployment, privacy | Current |
| 1 | 2026-10-06 03:10 UTC | publication | None | Current |
In briefs
1- Edit generated images through conversation with Gemini Nano Banana 2.1 Daily brief 2026-10-06
Original catalog content is licensed under CC BY 4.0, attributed to wowsuchai. Source quotations and linked content keep their original rights.