Pre-flight token-spend estimate (range, scenario, confidence) for a coding task, or an abstention.
Connect Runs on your machine
claude mcp add budgetary -e BUDGETARY_API_KEY=<BUDGETARY_API_KEY> -e BUDGETARY_HOST=<BUDGETARY_HOST> -- npx -y @budgetary/[email protected]{
"mcpServers": {
"budgetary": {
"command": "npx",
"args": [
"-y",
"@budgetary/[email protected]"
],
"env": {
"BUDGETARY_API_KEY": "<BUDGETARY_API_KEY>",
"BUDGETARY_HOST": "<BUDGETARY_HOST>"
}
}
}
}{
"mcpServers": {
"budgetary": {
"command": "npx",
"args": [
"-y",
"@budgetary/[email protected]"
],
"env": {
"BUDGETARY_API_KEY": "<BUDGETARY_API_KEY>",
"BUDGETARY_HOST": "<BUDGETARY_HOST>"
}
}
}
}{
"servers": {
"budgetary": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@budgetary/[email protected]"
],
"env": {
"BUDGETARY_API_KEY": "<BUDGETARY_API_KEY>",
"BUDGETARY_HOST": "<BUDGETARY_HOST>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
BUDGETARY_API_KEYRequired, secret | Budgetary API key (bg_live_ or bg_test_ prefix). Get one at https://budgetary.tools. |
BUDGETARY_HOSTOptional | Optional tag naming the MCP host this server runs under — e.g. claude-code, cursor, codex, copilot. It labels each estimate with where it came from, and an explicit value overrides the host name the MCP handshake reports. Free-form; defaults to "mcp" when unset. |
Details
| Package | @budgetary/[email protected] (NPM, stdio) |
| First published | 10 Aug 2026 |
| Last updated | 10 Aug 2026 |
| Registry name | io.github.thriftell/budgetary |
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