Local-first agent memory over SQLite: remember, recall, link, forget. Degrades, never fails.
To add tether to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 4 environment variables, listed below.
Install
uvx tether-memory@0.6.1Environment variables
TETHER_DBSet in your MCP configTETHER_SEMANTICSet in your MCP configTETHER_SYNC_URLSet in your MCP configTETHER_SYNC_TOKENSet in your MCP configInstall with your client
claude mcp add tether --env TETHER_DB=<YOUR_TETHER_DB> --env TETHER_SEMANTIC=<YOUR_TETHER_SEMANTIC> --env TETHER_SYNC_URL=<YOUR_TETHER_SYNC_URL> --env TETHER_SYNC_TOKEN=<YOUR_TETHER_SYNC_TOKEN> -- uvx tether-memory@0.6.1
Run this in a terminal to add the server to Claude Code.
What this does
tether exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
TETHER_DB TETHER_SEMANTIC TETHER_SYNC_URL TETHER_SYNC_TOKEN
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install tether?
Run the Claude Code command in the install section to add tether to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with tether?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to tether as well.
Does tether need an API key?
Yes. Before it can run, set these environment variables: TETHER_DB, TETHER_SEMANTIC, TETHER_SYNC_URL, TETHER_SYNC_TOKEN. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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