I Compared 5 Ways to Track LLM API Costs (Only One Works in Real Time)

Dev.to / 3/17/2026

💬 OpinionDeveloper Stack & InfrastructureTools & Practical Usage

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Key Points

The article compares five options for tracking LLM API costs, weighing real-time visibility, setup effort, and cross-provider coverage.
TokenBar provides live token counts and costs in the macOS menu bar across Claude, OpenAI, and OpenRouter for a $5 one-time fee, enabling real-time awareness while you work.
Other options include Provider Dashboards (free but hours-delayed and provider-specific), LiteLLM Proxy (near real-time but requires self-hosting), Helicone (near real-time via a proxy with good logging but requires routing traffic), and Custom Scripts (free but brittle to price changes and high maintenance).
Real-time cost visibility is argued to drive behavioral changes that reduce spend, such as killing runaway loops, switching to cheaper models, and prompting tighter controls, with the author reportedly cutting monthly spend by about 40%.

If you're on pay-per-token plans, you've probably been surprised by a bill at least once. Here's how the main options compare:

1. Provider Dashboard (OpenAI, Anthropic, etc.)

Updates every few hours
No per-session breakdown
Free
Problem: By the time you check, you've already overspent

2. LiteLLM Proxy

Tracks costs across providers
Requires self-hosting
Free/open source
Problem: Setup overhead, not real-time visibility while you work

3. Helicone

Great logging and analytics
Proxy-based, requires routing traffic through them
Free tier available
Problem: Dashboard-based, not ambient visibility

4. Custom Scripts

Parse API responses for token counts
Multiply by per-token pricing
Free
Problem: Breaks every time pricing changes, high maintenance

5. TokenBar (menu bar counter)

Shows live token count and cost in your macOS menu bar
Works across Claude, OpenAI, OpenRouter
$5 one-time
The difference: You see costs while you work, not after

Why Real-Time Matters

The problem with dashboards is behavioral. You don't check them while you're deep in a debugging session. A menu bar counter is always visible, like a gas gauge. You naturally start:

Killing runaway loops faster
Switching to cheaper models for simple tasks
Writing tighter prompts

I cut my monthly spend by about 40% just from having the number visible.

Quick Comparison

Tool	Real-time	Setup	Cost	Works across providers
Provider dashboard	No (hours delayed)	None	Free	No (one provider)
LiteLLM	Near real-time	Self-host proxy	Free	Yes
Helicone	Near real-time	Route through proxy	Freemium	Yes
Custom scripts	Yes	Build + maintain	Free	DIY
TokenBar	Yes (menu bar)	Install app	$5 once	Yes