Claude Usage Counter (Modular, No API Key)

Name: Claude Usage Counter (Modular, No API Key)
Author: Humberto

By: Humberto

Counts messages/text/file/image tokens with a 5h window. Modular code layout.

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Install

Features & Capabilities

📊 Smart Usage Tracking for Claude.ai

Keep track of your Claude conversations with intelligent counting that respects plan limits:

• Message & Token Counting: Tracks messages and estimates text tokens using configurable algorithms (~1 token/4 chars or ~1.3 tokens/word) • 5-Hour Reset Window: Auto-resets counters every 5 hours to match Claude's limits • Plan-Aware Limits: Supports Free (9), Pro (45), Max 5× (225), and Max 20× (900) with remaining count display • File & Image Support: Counts attachment tokens with customizable rates for PDFs, documents, and images by resolution • Real-Time Draft Tracking: See estimated tokens as you type • Privacy First: All data stays local - no API keys, no external servers, no data collection

Perfect for:

Power users monitoring usage patterns
Teams managing message budgets
Anyone wanting transparent token estimation

Permissions Explained:

Storage: Save your settings and usage data locally
Claude.ai access: Count messages and attachments on the site

Works entirely offline after installation. Your conversation data never leaves your browser.

User Growth & Download Statistics

Add-on

By:

Humberto

Daily users:

Version:

0.5.0 Last updated: 2025-08-24

Version code:

6017326

Creation date:

2025-08-21

Risk:

Permissions:

storage
https://claude.ai/*
*://localhost/*
file://*/*

Content scripts matches:

claude.ai
localhost
*

Size:

27.45KB

Email:

pu*****@gmail.com

URLs:

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-11

Compare stats and ranking:

Ranking

# 52,355 ▼ 381

Other rankings

#245 in claude ai keyword 38 ▼ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Humberto

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/claudeusagecounternoapikey/

Email:

pu*****@gmail.com

Is Claude Usage Counter (Modular, No API Key) Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Claude Usage Counter (Modular, No API Key) requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Medium ******* ****** ** *** ********* ******** ********** *********

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Claude Usage Counter (Modular, No API Key) is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****