CHAOSS

CHAOSS Evolution API

The evolution API from CHAOSS — 52 operation(s) for evolution.

GitHub OpenAPI

Operations 52

GET /repo-groups/:repo_group_id/code-changes Code changes (repo group) #
GET /repos/:repo_id/code-changes Code changes (repo) #
GET /repo-groups/:repo_group_id/code-changes-lines Code changes lines (repo group) #
GET /repos/:repo_id/code-changes-lines Code changes lines (repo) #
GET /repo-groups/:repo_group_id/contributors Contributors (repo group) #
GET /repos/:repo_id/contributors Contributors (repo) #
GET /repo-groups/:repo_group_id/contributors-new New contributors (repo group) #
GET /repos/:repo_id/contributors-new New contributors (repo) #
GET /repo-groups/:repo_group_id/issue-backlog Issue backlog (repo group) #
GET /repos/:repo_id/issue-backlog Issue backlog (repo) #
GET /repo-groups/:repo_group_id/issue-participants Issue participants (repo group) #
GET /repos/:repo_id/issue-participants Issue participants (repo) #
GET /repo-groups/:repo_group_id/issue-throughput Issue throughput (repo group) #
GET /repos/:repo_id/issue-throughput Issue throughput (repo) #
GET /repo-groups/:repo_group_id/issues-active Issues active (repo group) #
GET /repos/:repo_id/issues-active Issues active (repo) #
GET /repo-groups/:repo_group_id/issues-closed Issues closed (repo group) #
GET /repos/:repo_id/issues-closed Issues closed (repo) #
GET /repo-groups/:repo_group_id/issues-closed-resolution-duration Closed issue resolution duration (repo group) #
GET /repos/:repo_id/issues-closed-resolution-duration Closed issue resolution duration (repo) #
GET /repo-groups/:repo_group_id/issues-first-time-closed Closed issues new contributor (repo group) #
GET /repos/:repo_id/issues-first-time-closed Closed issues new contributors (repo) #
GET /repo-groups/:repo_group_id/issues-first-time-opened New contributors of issues (repo group) #
GET /repos/:repo_id/issues-first-time-opened New contributors of issues (repo) #
GET /repo-groups/:repo_group_id/issues-maintainer-response-duration Issue response time (repo group) #
GET /repos/:repo_id/issues-maintainer-response-duration Issue response time (repo) #
GET /repo-groups/:repo_group_id/issues-new Issues new (repo group) #
GET /repos/:repo_id/issues-new Issues new (repo) #
GET /repo-groups/:repo_group_id/issues-open-age Open issue age (repo group) #
GET /repos/:repo_id/issues-open-age Open issue age (repo) #
GET /repo-groups/:repo_group_id/pull-requests-merge-contributor-new New contributors of commits (repo group) #
GET /repos/:repo_id/pull-requests-merge-contributor-new New contributors of commits (repo) #
GET /repo-groups/:repo_group_id/review-duration Review duration (repo group) #
GET /repos/:repo_id/review-duration Review duration (repo) #
GET /repo-groups/:repo_group_id/reviews Reviews (repo group) #
GET /repos/:repo_id/reviews Reviews (repo) #
GET /repo-groups/:repo_group_id/reviews-accepted Reviews accepted (repo group) #
GET /repos/:repo_id/reviews-accepted Reviews accepted (repo) #
GET /repo-groups/:repo_group_id/reviews-declined Reviews declined (repo group) #
GET /repos/:repo_id/reviews-declined Reviews declined (repo) #
GET /repo-groups/:repo_group_id/sub-projects Sub projects (repo group) #
GET /repos/:repo_id/sub-projects Sub projects (repo) #
GET /repo-groups/:repo_group_id/closed-issues-count Closed issues count (repo group) #
GET /repos/:repo_id/closed-issues-count Closed issues count (repo) #
GET /repo-groups/:repo_group_id/issue-duration Issue duration (repo group) #
GET /repo-groups/:repo_id/issue-duration Issue duration (repo) #
GET /repos/:repo_group_id/releases Number of releases (repo) #
GET /repos/:repo_id/releases Number of releases (repo) #
GET /repo-groups/:repo_group_id/open-issues-count Open issues count (repo group) #
GET /repo-groups/:repo_id/open-issues-count Open issues count (repo group) #
GET /repo-groups/:repo_group_id/repo-messages Repository messages (repo group) #
GET /repos/:repo_id/repo-messages Repo messages (repo) #

Documentation

📖
Documentation
https://docs.collectoss.org/en/latest/
📖
APIReference
https://docs.collectoss.org/en/latest/rest-api/api.html
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/authentication/chaoss-authentication.yml

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/openapi/chaoss-evolution-api-openapi.yml

SDKs

📦
GitHubRepository
https://github.com/chaoss/CollectOSS

Other Resources

🔗
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/errors/chaoss-problem-types.yml
🔗
DataModel
https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/data-model/chaoss-data-model.yml
🔗
X-MCPServerCandidate
https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/mcp/chaoss-mcp.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/chaoss-evolution-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

chaoss-evolution-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: CollectOSS REST Evolution API
  version: 0.60.0
host: example.com
basePath: /api/unstable/
tags:


# --- truncated at 32 KB (77 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/chaoss/refs/heads/main/openapi/chaoss-evolution-api-openapi.yml