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Agent Memory & RAG

Wax

Wax is a Swift-based local memory layer for AI agents. It stores searchable information in a single .wax file and provides retrieval across text, images and video. Its MCP server connects supported agent hosts to shared memory across sessions.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Wax — 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 Wax when agent sessions need persistent, shared memory on a local device, or when several documented agent hosts should read and write the same store.

Who it is for

  • Developers connecting supported AI agent hosts to one local memory store.
  • People building on-device agent workflows that need persistent retrieval across sessions.
  • Users who want searchable memory stored locally rather than in a hosted vector database.

Documented uses

  • Save information from agent work for use in later sessions.
  • Share the same searchable memories among supported agent hosts.
  • Retrieve relevant information from text, images and video collections.
  • Connect Apple Foundation Models to on-device memory tools.
Before you choose

Requirements & limits

The repository says Wax requires no account and describes the project as open source under the Apache-2.0 license.

  • The store is a single .wax file containing documents, FTS5 text search, CoreML vectors and a write-ahead log.
  • The documented Apple Silicon install stages the MCP server, MiniLM runtime and operator skill.
  • MCP setup differs by host; multiple clients are documented to share one HTTP server, while Claude-only use can use stdio.
  • Host instructions must specify when to save memories; installing the server alone is not sufficient.
  • The README describes local file sharing to another Mac or iPhone through iCloud or AirDrop.

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

Stage Wax’s MCP server on Apple Silicon

Prepare the Wax MCP server and its runtime and operator skill for a later host connection.

Before you start

  • Apple Silicon device
  • Node.js package runner via npx

Steps

  1. Run the command below to stage the MCP server, MiniLM runtime and operator skill.

    Documented command
    npx -y waxmcp@latest install

  2. Follow the repository’s host-specific wire-up instructions for the agent you intend to connect.

  3. Add the documented always-on usage instructions so the host knows when to write memories.

Expected outcome

The Wax components are staged and the selected host has instructions for connecting and using memory; this guide does not cover a verification or retrieval test.

Guide limitations

  • The install flow described here is for Apple Silicon.
  • A staged server alone does not instruct the host when to save memories.
  • For two or more clients, the README says they must share one HTTP server; it documents stdio for Claude-only use.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
9 October 2026
Original website title
christopherkarani/Wax · Official homepage title · retained in its source language
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