Welcome to oncost
oncost gives engineering and finance teams a single view of their cloud and SaaS spend. Connect your providers, see what changed, get alerted when something looks off, and investigate in two clicks.Why oncost?
Most cost tools are built for large enterprises with dedicated FinOps teams. oncost is built for startups and scale-ups where the person watching costs is also shipping code.- Multi-provider — AWS, GCP, Anthropic, OpenAI, and GitHub in one place
- Change-focused — shows you what moved, not what stayed the same
- Proactive — anomaly detection and budget alerts push to Slack before surprises land
- Fast setup — connect a provider in under 5 minutes, no agents to install
How it works
- Connect your cloud and SaaS providers (AWS IAM role, GCP service account, API keys)
- Collect — oncost pulls billing data on a schedule, normalizes it, and stores it in your data lake
- See — the Home feed shows what needs attention: anomalies, budget warnings, cost changes
- Investigate — drill into the Cost Explorer by service, region, account, or tag
- Act — set budgets, configure Slack alerts, share saved views with your team
Supported providers
| Provider | What we collect | Setup time |
|---|---|---|
| AWS | CUR (Cost and Usage Report) | ~10 min |
| GCP | BigQuery billing export | ~10 min |
| Anthropic | Usage API (token-level) | ~2 min |
| OpenAI | Usage API (token-level) | ~2 min |
| GitHub | Billing API | ~2 min |