# Fission

> Open Source Kubernetes-native Serverless Framework

- **Canonical URI:** https://www.vioscale.ai/software/fission
- **Category:** Serverless & Edge Platforms
- **Homepage:** https://fission.io
- **Also known as:** fission
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T22:49:40.831Z

## Vioscale score

**56.1 / 100**, confidence 24% (low).

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

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 67.1 | 12 | 805.4 | ✓ |
| github_stars | 74.5 | 5 | 372.5 | ✓ |
| integrations | 17.3 | 16 | 277 | ✓ |
| github_activity | 56.4 | 18 | 1015.7 | ✓ |
| release_cadence | 95 | 10 | 950 | ✓ |
| security_posture | 0 | 22 | 0 | - |
| package_downloads | 0 | 26 | 0 | - |
| stackoverflow_activity | 0 | 12 | 0 | - |

## Pricing

_As of 2026-08-03, [verify at source](https://fission.io). Independently observed._

Open source · Free tier

> Free and open source under Apache License

## About

Fission is a framework for serverless functions on Kubernetes. Write short-lived functions in any language and map them to HTTP requests or other event triggers. Deploy instantly without building containers or managing registries.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI
- **Deployment:** Self-hosted

## Integrations (3)

_Independently observed._

- Fluentd
- Prometheus
- Istio

## Capabilities

_The capabilities that matter for Serverless & Edge Platforms. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Execution substrate | Container |
| **Reach** | |
| Runs at global edge PoPs | ✗ |
| **Scale** | |
| Scale to zero | ✗ |
| **Performance** | |
| Cold-start profile | Low |
| **Core** | |
| Language / runtime breadth | Python, NodeJS, Go, Rust, C#, PHP, and extensible to any language |
| **Limits** | |
| Max execution duration | - |
| **Integration** | |
| Event source breadth | HTTP endpoints, webhooks, Kubernetes watch events |
| HTTP endpoint trigger | ✓ |
| Cron / scheduled invocations | ✗ |
| **State** | |
| Durable state / workflow primitive | ✗ |
| **Flexibility** | |
| Bring-your-own runtime / container | ✓ |
| **Deployment** | |
| Hosting | Self-hosted only |
| **Ops** | |
| Built-in logs / metrics / tracing | ✓ |
| **Extensibility** | |
| CLI + IaC / framework support | ✓ |

## 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 | 61 | [link](https://github.com/fission/fission/pulse) | 2026-08-03 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 8,889 | [link](https://github.com/fission/fission) | 2026-08-03 | 90% (high) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 3 | [link](https://fission.io) | 2026-08-03 | 60% (medium) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Go | [link](https://github.com/fission/fission) | 2026-08-03 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/fission/fission) | 2026-08-03 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://fission.io) | 2026-08-03 | 60% (medium) |
| pricing.model | open_source | [link](https://fission.io) | 2026-08-03 | 60% (medium) |
| pricing.price_level | free | [link](https://fission.io) | 2026-08-03 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 9 | [link](https://github.com/fission/fission/releases) | 2026-08-03 | 70% (medium) |

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