Avenir MCP Server
by mathbealio.github.mathbeal/avenir-mcpv0.5.0
Unofficial MCP server for YNAB: read-only by default, every change previewed and undoable.
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security
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Active1d ago
Install Avenir MCP server
Install in Claude Code
claude mcp add avenir -e YNAB_API_KEY='<ynab-api-key>' -- uvx avenir-mcpInstall in Cursor
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<ynab-api-key>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<ynab-api-key>"
}
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"avenir": {
"type": "stdio",
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<ynab-api-key>"
}
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"avenir": {
"command": "uvx",
"args": [
"avenir-mcp"
],
"env": {
"YNAB_API_KEY": "<ynab-api-key>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| YNAB_API_KEY | yes | yes | Your YNAB personal access token (YNAB > Account settings > Developer settings). |
| AVENIR_MCP_WRITE | — | — | Set to 1 to expose the write tools; read-only otherwise. |
Freshness
Active — last maintenance signal 1d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-10-09 · 1d ago · GitHub
Latest release
2026-10-02 · 7d ago · GitHub · v0.5.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-02 · 7d ago · official registry · v0.5.0
FAQ
›How do I install the Avenir MCP server in Claude Code?
Run: claude mcp add avenir -e YNAB_API_KEY='<ynab-api-key>' -- uvx avenir-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Avenir require an API key?
Yes. It expects YNAB_API_KEY, of which 1 is a secret.
›Can I use Avenir as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Avenir in the official MCP registry?
Yes, as io.github.mathbeal/avenir-mcp.