# AWS Fault Injection Service vs Toxiproxy

**Leader by Vioscale score:** AWS Fault Injection Service

| Attribute | AWS Fault Injection Service | Toxiproxy |
|---|---|---|
| **Vioscale score** | 62 (76% (high)) | 53.4 (80% (high)) |
| activity.commits_last_30d | - | 2 |
| adoption.dependent_repos | - | 33,999 |
| adoption.github_stars | - | 12,285 |
| deployment.options | `{"cloud":true}` | `{"self_hosted":true}` |
| description.long | A managed service that helps engineering teams discover application weaknesses by running controlled fault injection experiments. It provides pre-built failure scenarios, automatic safeguards to prevent unintended impact, and monitoring integration to track application behavior during tests. | A Go-based TCP proxy tool designed for testing and CI environments that injects controlled network failures, latency, and corruption to verify applications handle degraded connectivity gracefully. Enables developers to simulate chaos deterministically or with randomization during testing. |
| integrations.count | 1 | 1 |
| integrations.list | `[{"name":"AWS CloudWatch"}]` | `[{"name":"Ruby"}]` |
| language.primary | - | Go |
| license.spdx | - | MIT |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Standard Usage","summary":"$0.10 per action-minute","features":["Single-account experiments","Pre-built scenarios","CloudWatch integration","Safety controls"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.1,"currency":"USD"}],"description":"Pay per action-minute for experiments","contactSales":false},{"free":false,"name":"Multi-Account Usage","summary":"$0.10 per action-minute + $0.10 per action-minute per additional account","features":["Multi-account orchestration","Cross-account targeting"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.1,"currency":"USD"},{"per":{"qty":1,"unit":"action-minute per additional account"},"kind":"metered","amount":0.1,"currency":"USD"}],"description":"Additional charges per target account","contactSales":false},{"free":false,"name":"GovCloud Pricing","summary":"$0.12 per action-minute in GovCloud","features":["US GovCloud regions support"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.12,"currency":"USD"}],"description":"Pricing for AWS GovCloud US regions","contactSales":false}],"addOns":[{"name":"Experiment Reports","components":[{"kind":"one_time","amount":5,"currency":"USD"}]}],"summary":"From $0.10 per action-minute. Free tier available.","currency":"USD","freeTier":true,"sourceUrl":"https://aws.amazon.com/fis/pricing/","retrievedAt":"2026-08-18T12:54:27.351Z","startingPrice":{"amount":0.1,"period":"month","currency":"USD"}}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-18T12:54:48.953Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 66 |
| release.history | - | `[{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.12.0","date":"2025-03-18T13:12:45Z","type":"stable","version":"v2.12.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.11.0","date":"2024-10-16T19:26:12Z","type":"stable","version":"v2.11.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.10.0","date":"2024-10-08T17:50:37Z","type":"stable","version":"v2.10.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.9.0","date":"2024-03-12T18:35:45Z","type":"stable","version":"v2.9.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.8.0","date":"2024-02-27T20:31:13Z","type":"stable","version":"v2.8.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.7.0","date":"2023-10-25T15:03:55Z","type":"stable","version":"v2.7.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.6.0","date":"2023-08-22T16:02:08Z","type":"stable","version":"v2.6.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.5.0","date":"2022-09-10T12:10:32Z","type":"stable","version":"v2.5.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.4.0","date":"2022-03-07T16:23:51Z","type":"stable","version":"v2.4.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.3.0","date":"2021-12-23T12:22:50Z","type":"stable","version":"v2.3.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.2.0","date":"2021-10-17T16:32:33Z","type":"stable","version":"v2.2.0"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.7","date":"2021-09-23T15:00:38Z","type":"stable","version":"v2.1.7"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.6","date":"2021-09-23T12:35:53Z","type":"stable","version":"v2.1.6"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.5","date":"2021-09-01T16:00:02Z","type":"stable","version":"v2.1.5"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.5-pre","date":"2021-09-01T11:15:45Z","type":"prerelease","version":"v2.1.5-pre"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.4","date":"2019-01-22T15:27:12Z","type":"stable","version":"v2.1.4"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.3","date":"2018-03-05T23:45:13Z","type":"stable","version":"v2.1.3"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.2","date":"2017-07-10T13:42:37Z","type":"stable","version":"v2.1.2"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.2rc1","date":"2017-06-29T17:47:23Z","type":"prerelease","version":"v2.1.2rc1"},{"url":"https://github.com/Shopify/toxiproxy/releases/tag/v2.1.1","date":"2017-05-16T17:30:44Z","type":"stable","version":"v2.1.1"}]` |
| security.disclosure_policy | yes | - |
| security.fedramp | yes | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.scorecard | - | 6.8 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2FShopify%2Ftoxiproxy&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Chaos Engineering)

| Capability | AWS Fault Injection Service | Toxiproxy |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Fault injection scope | - | - |
| Blast radius control | - | - |
| Automated abort safety | - | - |
| Kubernetes native | - | - |
| Scheduling gameday orchestration | - | - |
| Observability integration | - | - |
| Experiment as code | - | - |
| Agent based | - | - |
| RBAC access control | - | - |
| Deployment model | - | - |
| SOC2 | - | - |
| Open source | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T15:14:48.828Z. "-" = undocumented, not absent.*