Avenir MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 701 installs a week from pypi. Last commit 15 Oct 2026.
Unofficial MCP server for YNAB: read-only by default, every change previewed and undoable.
We read the source, 1 h ago · rules ccca72095570
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.
with patch.dict(os.environ, env), patch("avenir_mcp.app.today", lambda: TODAY):
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 avenir-mcp -- uvx avenir-mcp
{
"mcpServers": {
"avenir-mcp": {
"args": [
"avenir-mcp"
],
"command": "uvx"
}
}
}
[mcp_servers.avenir-mcp]
command = "uvx"
args = ["avenir-mcp"]
{
"mcpServers": {
"avenir-mcp": {
"args": [
"avenir-mcp"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"avenir-mcp": {
"args": [
"avenir-mcp"
],
"command": "uvx"
}
}
}
This one needs environment variables set before it will start:
YNAB_API_KEY (Your YNAB personal access token (YNAB > Account settings > Developer settings).), AVENIR_MCP_WRITE (Set to 1 to expose the write tools; read-only otherwise.).
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.