# apache/caldera

Automated Adversary Emulation Platform

Repository: https://github.com/apache/caldera
Canonical: https://ross.abutalabs.com/products/caldera
Homepage: https://caldera.apache.org/
Language: Python
License: Apache-2.0
License Family: permissive
Topics: adversary-emulation, caldera, security-automation, red-team, mitre-attack, security-testing, cybersecurity
Last push: 2026-08-26T23:32:36+00:00

## Health v2 (maintenance only)
Score: 79/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 40, longevity 100
- inputs: {"age_days": 3200, "days_push": 7, "days_rel": 496, "gap_med": 28.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7213, forks 1368 (observed 2026-08-28T04:09:57.519231+00:00)

## What it is
Apache Caldera is a cybersecurity platform for automated adversary emulation built on the MITRE ATT&CK framework. It provides an asynchronous command-and-control server with a REST API and web UI, extensible via plugins for agents, TTP collections, and reporting.

## Use cases
- automate adversary emulation against my network
- run MITRE ATT&CK based red team exercises
- test whether my detection and alerting catches specific threats
- assist manual red team engagements with a C2 framework
- train blue teams with simulated attack behavior
- research red vs blue cyber operations and defense analytics

## When to choose
- you need automated, repeatable adversary emulation mapped to ATT&CK techniques
- you want an extensible C2 platform with a plugin ecosystem for red team operations
- you are evaluating or training defensive detection and response capabilities

## When to avoid
- you need a simple vulnerability scanner or compliance audit tool rather than attack emulation
- you want a lightweight one-off penetration testing toolkit without a server/agent architecture
- you lack authorization to run offensive security tooling in the target environment

## Facets
- artifact type: framework
- maturity: active
- function: security, penetration-testing, vulnerability-scanning, plugin-system, api-framework, http-server
- domain: security, penetration-testing, developer-tools
- platform: python, cross-platform, self-hosted
- tags: adversary-emulation, red-team, mitre-attack, cybersecurity, command-and-control, incident-response, security-testing, blue-team, automation, docker, web-server

## Member repositories
- apache/caldera (main) score 79

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:57.519231+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:39:50.015054+00:00, confidence not recorded.
  - readme: https://github.com/apache/caldera (fetched 2026-08-28T04:09:57.519231+00:00, sha 57478250ccc6)
  - homepage: https://caldera.apache.org/ (fetched 2026-08-29T08:34:45.001153+00:00, sha 65eb2fc87217)
- Data as of 2026-08-30T08:39:29.467469+00:00.