Open Source · MIT · Self-Hostable

See every dollar your
AI and data stack costs

An open-source AI agent for your Claude, GPT, dbt, warehouse, and cloud bills. Connect 15+ platforms in minutes — self-host in 10, or use our cloud.

15+
platforms connected
<5 min
to first insight
100%
read-only & safe

15+ connectors across your entire data stack

Anthropic·AI
OpenAI·AI
Gemini·AI
dbt Cloud·Transform
AWS·Cloud
BigQuery·Warehouse
Databricks·Compute
Snowflake·Warehouse
Looker·BI
Tableau·BI
Omni·BI
Fivetran·Ingest
Airbyte·Ingest
GitHub Actions·CI/CD
GitLab CI·CI/CD
Monte Carlo·Quality
Coverage

Every layer of your data stack

Warehouses, pipelines, BI, AI models, CI/CD — if it has a bill, costly tracks it.

AI & LLM APIs
Claude, OpenAI, Gemini
Pipelines & Transforms
dbt Cloud, Fivetran, Airbyte
BI & Analytics
Looker, Tableau, Omni
Data Warehouses
BigQuery, Databricks, Snowflake
CI/CD & Cloud
GitHub Actions, GitLab CI, AWS
Data Quality
Monte Carlo
Platform Capabilities

Not just dashboards — actionable intelligence

costly connects your cost data across platforms and uses AI to surface what matters: where to cut, what to fix, and what to watch.

Dashboard

Unified Cost Dashboard

See every dollar across your entire data stack in one place. Break down spend by platform, team, pipeline, and time — no more switching between billing consoles.

AI

AI Cost Agent

Ask questions in plain English. “Why did our AWS bill spike last Tuesday?” or “Which dbt models are most expensive?” — get instant, cited answers.

Intelligence

AI Spend Intelligence

Cross-provider AI cost dashboard — compare OpenAI vs Anthropic vs Gemini. Token breakdowns, model-level costs, and migration recommendations.

Connectors

Open-Source Connector Layer

15 connectors for warehouses, pipelines, BI tools, AI models, and CI/CD. Read-only credentials. No agents or data extraction — we query APIs directly.

Monitoring

Anomaly Detection

Catch cost spikes before they become surprise bills. Rolling-average baselines with per-platform thresholds alert you the moment something looks off.

Alerts

Budget Alerts

Set daily, weekly, or monthly budget thresholds per platform or team. Get notified via Slack or email before you exceed targets.

Getting Started

Connect. Analyze. Optimize.

From zero to full data stack visibility in under 5 minutes.

01

Connect your platforms

Add read-only credentials for any platform in your stack. OAuth where available, API keys otherwise. Each connector takes under 2 minutes.

02

See everything in one dashboard

Costs normalize into a unified model — warehouses, pipelines, BI seats, AI tokens, CI minutes — all in one place with consistent breakdowns.

03

Act on AI-powered recommendations

The AI agent surfaces specific optimizations with projected savings. Review, approve, and in some cases execute changes directly from the UI.

AI Cost Agent

Ask your cost data anything

The AI agent has 15 tools — one per connector — and can answer complex cross-platform questions instantly. No SQL, no pivot tables, no switching between billing consoles.

Why did our spend spike last Tuesday?
Which dbt models cost the most this month?
Compare our Fivetran vs Airbyte costs
Show me all AI API spend by model
What are my top 5 optimization opportunities?
costly — AI Agent

Why did our Claude spend spike last week?

costly AI

Anthropic spend jumped +58% Mon–Thu. The driver is a prompt-caching regression — cache-hit rate fell from 71% to 12% on your sales-agent workflow after last Tuesday's deploy. An extra 41M cache-write tokens cost +$2.1K.

Recommendation: Restore cache-friendly system prompt → est. $1,400/mo saved
Built for Trust

Safe, transparent, and auditable

100% read-only
We never write to your platforms. No risk of data modification.
5-minute setup
Paste a credential, see data. No agents, no ETL, no infrastructure.
No data extraction
We query billing APIs directly. Your data never leaves your accounts.
Open connector layer
All 15 connectors are open source. Audit exactly what we query.
What costly tracks

Full-stack cost visibility

Every category of data infrastructure spend, in one unified model.

AI & LLM API spend (per model, cache, service tier)
Transformation runs (per model, per project)
Cloud infrastructure (21 services)
Warehouse compute & storage
Data ingestion pipelines
BI tool licensing & usage
CI/CD pipeline minutes
Data quality monitoring

Your data stack has one bill now.

Connect your platforms in under 5 minutes. Explore the live demo first — no signup required.