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Agent Memory & RAG

Memseek

Memseek is an open-source Python library and CLI for declarative AI-agent memory and context, configured in versioned YAML and run with a PostgreSQL database.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Memseek — OpenViST project profile in Agent Memory & RAG.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Memseek when an agent needs maintained, traceable knowledge from accumulated records and task-specific context, rather than only retrieving potentially relevant material.

Who it is for

  • Developers building AI agents that need maintained, evidence-backed context.
  • Teams that want memory definitions and task-specific context rules managed as versioned YAML.

Documented uses

  • Record application evidence such as messages, events, documents, tool results and outcomes.
  • Maintain current facts, memories, reflections or procedures while retaining dated source evidence.
  • Assemble cited context for an agent task within a declared token budget.
  • Validate a catalog and locate its named declarations from the CLI.
Before you choose

Requirements & limits

The project is open source under the Apache-2.0 license. Its documented operating model uses a PostgreSQL database that you run.

  • The documented lifecycle depends on PostgreSQL operated by the user.
  • Memory and context behavior is declared through a catalog of versioned YAML files.
  • The project distinguishes maintained and reconciled knowledge from search alone, retaining evidence and superseded history.
  • Agent tool exposure is explicitly allowlisted; an MCP interface does not expose every view, artifact or route automatically.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Validate a Memseek catalog locally

Check a local catalog and find a named declaration using the documented CLI.

Before you start

  • Memseek CLI available through the documented uv run memseek invocation.
  • A catalog directory containing the declarations to inspect.

Steps

  1. Run the command below to validate the example catalog.

    Documented command
    uv run memseek catalog-validate --dir mini_memory

  2. Run the command below to locate the reflection declaration.

    Documented command
    uv run memseek catalog-locate reflect --dir mini_memory

Expected outcome

The documented commands validate a catalog and locate a declaration by name.

Guide limitations

  • These commands cover catalog inspection, not execution of an agent or deployment.
  • Only explicitly listed catalog files load; derivation processors and inline triggers are included automatically.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
14 October 2026
Original website title
memseekai/memseek · Official homepage title · retained in its source language
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