# Kill Bill

- **Canonical URI:** https://www.vioscale.ai/software/kill-bill
- **Category:** Billing & Invoicing Software
- **Homepage:** https://killbill.io
- **Also known as:** kill-bill
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-05T14:17:43.495Z

## Vioscale score

**53.8 / 100**, confidence 24% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 100 | 0.047 | 4.7 | ✓ |
| reliability | 0 | 0.094 | 0 | - |
| capabilities | 81.2 | 0.117 | 9.5 | ✓ |
| github_stars | 70.8 | 0.029 | 2.1 | ✓ |
| integrations | 22.4 | 0.082 | 1.8 | ✓ |
| github_activity | 47.4 | 0.105 | 5 | ✓ |
| release_cadence | 43.9 | 0.058 | 2.5 | ✓ |
| security_posture | 0 | 0.175 | 0 | - |
| package_downloads | 0 | 0.152 | 0 | - |
| pricing_transparency | 25 | 0.07 | 1.8 | ✓ |
| stackoverflow_activity | 0 | 0.07 | 0 | - |

## Pricing

_As of 2026-08-05, [verify at source](https://killbill.io). Independently observed._

Open source · Free tier

> Open source (free to self-host). ChaChing managed platform available (contact for pricing). Fixed pricing model, not percentage-based.

## About

Open-source billing infrastructure proven at scale over 15+ years, supporting subscriptions, usage-based billing, and custom pricing models. Deploy in your infrastructure or use ChaChing's managed platform.

_Independently observed._

## Platform & deployment

- **Platforms:** Web
- **Deployment:** Cloud / SaaS, Self-hosted

## Integrations (5)

_Independently observed._

- Avalara AvaTax
- Forte
- ChaChing
- Numerio
- Wovenware

## Capabilities

_The capabilities that matter for Billing & Invoicing Software. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Subscription billing | ✓ |
| Usage metering | Real-time |
| Pricing models | Flat rate, tiered, volume, staircase, per-unit, custom logic |
| Invoicing & AR | ✓ |
| Catalog management | ✓ |
| **Commerce** | |
| Merchant of record | - |
| **Finance** | |
| Revenue recognition | - |
| Tax handling | Integration |
| **Collections** | |
| Dunning | Basic retry |
| **Integrations** | |
| GL / ERP sync | - |
| **Ecosystem** | |
| API-first / developer-first | ✓ |
| **Deployment** | |
| Self-hostable | ✓ |
| **Insight** | |
| Revenue analytics | ✓ |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 31 | [link](https://github.com/killbill/killbill/pulse) | 2026-08-01 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 5,644 | [link](https://github.com/killbill/killbill) | 2026-08-01 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Java | [link](https://github.com/killbill/killbill) | 2026-08-01 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/killbill/killbill) | 2026-08-01 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://killbill.io) | 2026-08-05 | 60% (medium) |
| pricing.model | commercial | [link](https://killbill.io) | 2026-08-05 | 60% (medium) |
| pricing.price_level | free | [link](https://killbill.io) | 2026-08-05 | 60% (medium) |
| pricing.transparent | no | [link](https://killbill.io) | 2026-08-05 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 101 | [link](https://github.com/killbill/killbill/releases) | 2026-08-01 | 70% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 5 | [link](https://killbill.io) | 2026-08-05 | 60% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/kill-bill). Independent, evidence-based software intelligence. Cite the canonical URI.*