Live cost tracking · OpenAI, Anthropic, Gemini, Groq & OpenRouter

Your OpenAI bill shouldn't be a surprise

See exactly which API key, model, and request is costing you money, across every provider you use, before the invoice lands.

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OpenAIAnthropicGeminiGroqOpenRouter

API Coleen — Cost AnalyticsLive

Today's Spend

$1.847

+12.4% vs yesterday

Tokens Used

6.2M

5 providers active

Active Keys

Across all environments

Avg Latency

412ms

-12ms vs yesterday

Live Pricing (per request)

GPT-4o

OpenAI

$0.000245

▲ 0.12%

Claude 3.5 Sonnet

Anthropic

$0.000192

▼ 0.08%

Gemini 1.5 Pro

Google

$0.000091

▲ 0.05%

Mistral Large

Mistral AI

$0.000064

▼ 0.03%

Daily API Spend by Provider

7-day

Cost in USD per 1K tokens · averaged

OpenAIAnthropicGeminiMistral

Cost per 1K Tokens by Model

Benchmark

Lower is cheaper — compare across models

Bank-level encryptionReal-time monitoringNo data storedYour keys, encryptedOpen API

Features

Precision tools for AI efficiency

Visibility shouldn't be an afterthought. Built for the modern LLM stack with everything your team needs to control costs at scale.

Core

Real-time Cost Tracking

Stream granular token usage and latency metrics directly into your observability pipeline. Zero lag, full visibility into every inference call across all providers.

Live token streamLive

GPT-4o

1,240 tokens

$0.0062

▲ 0.4%

Claude 3.5 Sonnet

890 tokens

$0.0043

▼ 0.7%

Gemini 1.5 Pro

2,100 tokens

$0.0019

▲ 0.9%

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Alerts

Intelligent Anomaly Alerts

Get notified via Email, Telegram, Discord, or Web Notifications when costs spike or usage patterns shift unexpectedly. Set budget thresholds per team or project.

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Forecast

Cost Forecasting & Analysis

Predict next month's spend with smart forecasting based on your usage trends.

30-day forecastSmart forecasting

W1W2W3W4W5W6Pred

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Providers

5 Providers Tracked

One SDK to rule them all. Unified billing and cost attribution for OpenAI, Anthropic, Gemini, Groq, and OpenRouter.

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Security

Bank-level Encryption

Enterprise-grade security built in. No prompt data is ever stored. All telemetry is anonymized and encrypted at rest and in transit.

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By the numbers

Results that speak for themselves

A focused LLM cost management platform built for AI-first teams.

Solo founder

building for builders

Providers tracked

OpenAI, Anthropic, Gemini, Groq, OpenRouter

Of your spend visible

no blind spots across providers

0/7

Real-time tracking

alerts the moment costs spike

“I built API Coleen because I got tired of surprise OpenAI bills. No corporate fluff, just a tool that works. Be one of my first 20 design partners and let's shape this together.”

— Solo Founder, API Coleen

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Pricing

Simple, transparent pricing

Start for free. Scale as you grow. No surprise bills.

Free

Learn & Experiment

Get Started

1 API Key
7-day history
1 email alert/week
100 monthly API calls
Basic dashboard

Starter

₹299/month

Solo Developers

Start Free Trial

Everything in Free, plus:
3 API Keys
30-day history
5 email alerts
Unlimited API calls
Monthly reports

Ready to take control of your
LLM infrastructure costs?

Be one of our first 20 design partners. Start free, no credit card required.

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No credit card required · Cancel anytime · Bank-level encryption

Your OpenAI bill shouldn't be a surprise

Precision tools for AI efficiency

Real-time Cost Tracking

Intelligent Anomaly Alerts

Cost Forecasting & Analysis

5 Providers Tracked

Bank-level Encryption

Results that speak for themselves

Simple, transparent pricing

Ready to take control of your LLM infrastructure costs?

Ready to take control of your
LLM infrastructure costs?