Unofficial YNAB server for budgets, spending trends, reconciliation and cash-flow forecasts; read-only by default, with writes previewed and undoable.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add avenir --env YNAB_API_KEY='<YNAB_API_KEY>' -- uvx avenir-mcp~/.codex/config.toml
[mcp_servers.avenir]
command = "uvx"
args = ["avenir-mcp"]
env = { YNAB_API_KEY = "<YNAB_API_KEY>" }
# codex mcp add avenir --env YNAB_API_KEY='<YNAB_API_KEY>' -- uvx avenir-mcp~/.cursor/mcp.json
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<YNAB_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"avenir": {
"type": "stdio",
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<YNAB_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<YNAB_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<YNAB_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<YNAB_API_KEY>"
}
}
}
}Environment variables
YNAB_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.