Chaos Engineering Python Packages

chaostoolkit-lib

The Chaos Toolkit core library

chaostoolkit

Chaos Engineering Toolkit & Orchestration for Developers

mockserver-client

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

chaostoolkit-aws

Chaos Toolkit Extension for AWS

derailment

A harness for inducing and measuring psychopathology-like cognitive distortions in LLMs — emulation, not diagnosis.

krkn-lib

Chaos and resiliency testing tool for Kubernetes with a focus on improving performance under failure conditions. A CNCF sandbox project.

powerfulseal

A powerful testing tool for Kubernetes clusters.

mockstack

An API mocking workhorse 🐎

chaostoolkit-kubernetes

Kubernetes driver extension of the Chaos Toolkit probes and actions API

microburst

AWS failure injection proxy — protocol-aware faults (throttling, latency, resets) that exercise real SDK retry behavior. Works against MiniStack, moto, or real AWS.

chaostoolkit-slack

Chaos Toolkit Plugin for Slack

chaostoolkit-google-cloud-platform

Chaos Toolkit extension for Google Cloud Platform

faultlib

Programmable network fault injection

shadowbox

Model the system. Experiment safely. Deterministic what-if simulation for backend architectures — CLI, API and dashboards. Python + TypeScript, local-first, no paid services.

llmock

Local mock server for testing LLM retries, fallbacks, and provider failure handling without spending tokens.

ckpt-chaos

Crash-consistency testing for ML training checkpoints: kill a save at every file boundary, resume, classify the outcome

callback-voice

Chaos testing for voice agents: simulated callers, real audio, one exit code.

chaotic-ngine

Chaos for Clouds

agentbreak

infrastructure chaos to test the resilience of ai agents

testcontainers-mockserver

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

aws-chaos-engineering-framework

Break AWS safely before reality does: enterprise-grade FIS orchestration, GovCloud guardrails, rollback, and audit-ready evidence in one Python file.

chaostoolkit-lueur

Template project for Chaos Toolkit extensions

swarm-test

Chaos engineering & reliability testing for multi-agent AI systems

opshield

AI agent safety platform: rollback, cost control, circuit breakers, tracing, compliance, and chaos testing. Zero dependencies.