CHAOSS
CHAOSS (Community Health Analytics in Open Source Software) is a Linux Foundation project that develops metrics, methodologies, software, and practitioner guides for measuring and improving open source community health and sustainability. It maintains a metrics catalog organized into focus areas (Common, DEI, Risk, Value, Evolution) plus metrics models, and ships the open source software that computes them: CollectOSS, a Python data-collection tool that stores forge data in PostgreSQL and exposes a 137-operation REST API of CHAOSS-aligned metrics, and GrimoireLab, a Python toolchain and OpenSearch dashboard that ingests 30+ data sources. Both are self-hosted — CHAOSS operates no hosted API and sells nothing. CHAOSS also runs the DEI Project Badging program and publishes practitioner guides for OSPOs, maintainers and funders. Augur, formerly the CHAOSS reference implementation, left the project in March 2026 and was superseded by CollectOSS.
CHAOSS publishes 1 API on the APIs.io network: CollectOSS REST API. Tagged areas include Analytics, Community Health, DEI, Linux Foundation, and Metrics.
CHAOSS’s developer surface includes documentation, GitHub presence, engineering blog, getting-started guide, YouTube channel, support, CLI, and 27 more developer resources.
Kin Score
APIs 4
Individual APIs this provider publishes, each with its own machine-readable definition.
CollectOSS REST API
CollectOSS (pronounced "collect us") is the CHAOSS reference data collection and storage tool for open source community health. It harvests data from GitHub and GitLab forges in...
CHAOSS Metrics Catalog
The CHAOSS Metrics catalog is a community-maintained, structured reference of community-health metrics organized into focus areas (Common, DEI, Risk, Value, Evolution) plus metr...
CHAOSS GrimoireLab
GrimoireLab is an open source platform for software development analytics. It pulls data from 30+ data sources (Git, GitHub, GitLab, mailing lists, IRC, Slack, Jira, Bugzilla, e...
CHAOSS 8Knot Dashboard
8Knot is an open source community analytics dashboard built on top of Augur that provides ready-made visualizations of CHAOSS metrics for stakeholders evaluating open source pro...
Pricing Plans 1
Published pricing tiers and plan structures.
Chaoss Plans Pricing
PLANSRate Limits 1
Documented rate limits and quota policies.
Chaoss Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Chaoss Finops
FINOPSFeatures 15
Notable capabilities this provider offers.
Community Health Metrics
Metrics Models
DEI Metrics
Risk Metrics
Value Metrics
Evolution Metrics
Common Metrics
Open Source Software
Practitioner Guides
Working Groups
Reference Implementations
REST API (Augur)
Data Pipeline (GrimoireLab)
Dashboards (8Knot, Bitergia)
SaaS Adopter Services
Scroll for all 15
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Use Cases 10
What developers build with this provider.
Open Source Project Health Assessment
Contributor Sustainability Analysis
DEI in Open Source Communities
Open Source Risk and Security Assessment
Open Source Investment ROI
Funding Impact Measurement
Community Onboarding Improvement
Foundation-Level Reporting
OSPO Health Reporting
Maintainer Burnout Detection
Scroll for all 10
Integrations 16
Pre-built integrations with other platforms and tools.
GitHub
GitLab
Bitbucket
Git
Mailing Lists
Jira
Bugzilla
Discourse
Slack
IRC
Stack Exchange
Meetup
Linux Foundation
CNCF
Apache Software Foundation
OpenSSF
Scroll for all 16
Resources
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 4
Pagination, idempotency, versioning, errors, and events
Build 6
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 6
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 5
Properties that don't map to a standard resource type
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.