Budgetary: estimate token spend

Pre-flight, probabilistic token-spend estimate (range, scenario, confidence) for a coding task.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "budgetary-estimate-token-spend": {
      "command": "npx",
      "args": [
        "-y",
        "budgetary-estimate-token-spend"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Budgetary clients

Budgetary tells you how many tokens an LLM query will cost — before you run it.

Budgetary is a hosted API at https://api.budgetary.tools that returns probabilistic pre-inference token-spend estimates for LLM queries. This repository holds the open-source clients that talk to it: language SDKs and editor plugins.

Quick example

server.ts

import { BudgetaryClient } from "@budgetary/sdk";

const budgetary = new BudgetaryClient({ apiKey: process.env.BUDGETARY_API_KEY! });
const estimate = await budgetary.estimate("Summarize the attached PDF in three bullets.");

The SDK in this release is a stub — the call above illustrates the shape of the API surface, not a working implementation.

Install

See docs/installation.md for per-client setup:

TypeScript / JavaScript SDK — @budgetary/sdk on npm
Python SDK — budgetary on PyPI
VS Code extension (dashboard)
Claude Code plugin
Codex plugin

API

Bearer-auth HTTP API at https://api.budgetary.tools. The wire contract is published at docs/api-contract.md.

Status

Early access. The hosted API is live, but client interfaces may change between releases until they reach 1.0. Pin exact versions in production.

License

Apache-2.0. Copyright Budgetary.

Read the full README →View source on GitHub →

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Frequently Asked Questions about Budgetary: estimate token spend

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "budgetary-estimate-token-spend": { "command": "npx", "args": ["-y", "Budgetary: estimate token spend"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

27Quality signal: Emerging · 27/100How this signal is calculated ▾

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