Tether runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 12 Sep 2026.
Local-first agent memory over SQLite: remember, recall, link, forget. Degrades, never fails.
We read the source, 18 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
return os.path.isdir(os.path.join(cache_dir, repo_dir))
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add tether -- uvx tether-memory
{
"mcpServers": {
"tether": {
"args": [
"tether-memory"
],
"command": "uvx"
}
}
}
[mcp_servers.tether]
command = "uvx"
args = ["tether-memory"]
{
"mcpServers": {
"tether": {
"args": [
"tether-memory"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"tether": {
"args": [
"tether-memory"
],
"command": "uvx"
}
}
}
This one needs environment variables set before it will start:
TETHER_DB (Path to the SQLite memory file. Defaults to the platform data dir (e.g. ~/.local/share/tether/memory.db).), TETHER_SEMANTIC (Set to 0 to force keyword-only recall. Semantic recall needs the [semantic] extra and is on by default when available.), TETHER_SYNC_URL (Optional libSQL/Turso primary URL to sync memory across devices. Leave unset for local-only.), TETHER_SYNC_TOKEN (Auth token for TETHER_SYNC_URL.).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.