Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
Billing
Usage-based billing, subscription management and invoicing.
Changes in this category (RSS)
Side by side
| Tool | Stars | Licence | Terms | Self-hosted | Language | Latest | Last push |
|---|---|---|---|---|---|---|---|
| Lago | 11k | AGPL-3.0 | Open source | Yes | Go | v1.54.0 | 2026-10-06 |
| Polar | 10k | Apache-2.0 | Open source | Yes | Python | @polar-sh/tanstack-start@1.0.1 | 2026-10-06 |
| Flexprice | 6.9k | AGPL-3.0 | Open core | Yes | Go | v2.1.34 | 2026-10-06 |
| Kill Bill | 5.8k | Apache-2.0 | Open source | Yes | Java | killbill-0.24.22 | 2026-10-05 |
| Autumn | 2.8k | Apache-2.0 | Open source | Yes | TypeScript | atmn-v2.0.77 | 2026-10-06 |
| OpenMeter | 2.4k | Apache-2.0 | Open source | Yes | Go | v1.0.0-beta.235 | 2026-10-06 |
6 tools
Polar — A billing platform for the intelligence era
- Language
- Python
- Licence
- Apache-2.0
- Stars
- 10k
- Last push
- 2026-10-06
Usage-based pricing and billing for developers 🔓 Cloud or self-hosted ⚙️ No-code UI 💰 Realtime usage metering 🎟 Credits & top-ups 🔑 Control feature access
Open-Source Subscription Billing & Payments Platform
- Language
- Java
- Licence
- Apache-2.0
- Stars
- 5.8k
- Latest
- killbill-0.24.22
- Last push
- 2026-10-05
Autumn is an open-source pricing & billing platform
- Language
- TypeScript
- Licence
- Apache-2.0
- Stars
- 2.8k
- Latest
- atmn-v2.0.77
- Last push
- 2026-10-06
Metering and Billing for AI, API and DevOps. Collect and aggregate millions of usage events in real-time and enable usage-based billing.
- Language
- Go
- Licence
- Apache-2.0
- Stars
- 2.4k
- Latest
- v1.0.0-beta.235
- Last push
- 2026-10-06