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openml

5 indexed repositories · View on GitHub

OpenML
Open Machine Learning

PHP · 755 stars
openml.org
New OpenML website

TypeScript · 33 stars
server-api
Python-based server

Python · 16 stars
services
Overview of all OpenML components including a docker-compose to run OpenML services locally

Shell · 2 stars
discussionboard
A repository that hosts the Github Discussions for the OpenML organization.

0 stars

Beginner friendly Everything

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Website shows 403 Forbidden when trying to access specific evaluation measures or data qualities Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

openml/openml.org#413 · Opened Sep 18, 2026
Separate internal and external API endpoints in swagger files Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

openml/OpenML#1321 · Opened Sep 11, 2026
Redesign POST /data/untag for v2 Open

proposal

openml/server-api#375 · 2 comments · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/tag for v2 Open

openml/server-api#374 · 2 comments · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/qualities/unprocessed/{data_engine_id}/{order} for v2 Open

openml/server-api#373 · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/qualities for v2 Open

openml/server-api#372 · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/features for v2 Open

openml/server-api#371 · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/status/update for v2 Open

openml/server-api#370 · 1 assignee · Opened Aug 31, 2026
Redesign POST /data/ for v2 Open

openml/server-api#369 · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/unprocessed/{data_engine_id}/{order} for v2 Open

openml/server-api#368 · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/qualities/list for v2 Open

openml/server-api#367 · 1 comment · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/qualities/{id} for v2 Open

openml/server-api#366 · 1 comment · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/features/{id} for v2 Open

openml/server-api#365 · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/list/filters for v2 Open

openml/server-api#364 · 1 comment · 1 assignee · Opened Aug 31, 2026
Redesign DELETE /data/{id} for v2 Open

openml/server-api#363 · 1 comment · 1 assignee · Opened Aug 31, 2026
Redesign GET /data/{id} for v2 Open

openml/server-api#362 · 1 comment · 1 assignee · Opened Aug 31, 2026
Unable to publish the results Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/OpenML#1319 · Opened Aug 18, 2026
Runs are published successfully, but evaluations remain null and do not appear on profile Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/OpenML#1318 · Opened Aug 17, 2026
docker compose for `rest-api` profile fails Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

openml/services#17 · Opened Aug 13, 2026
backend: Add missing error logging for ElasticSearch indexing failures Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

openml/OpenML#1297 · Opened Jul 7, 2026
OpenML task API returns 503 for task 31, causing openml-python / HPOBench task loading to fail Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

openml/OpenML#1292 · 2 comments · 1 reaction · Opened Jun 2, 2026
Support other metadata schemas Open

enhancement triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

openml/server-api#326 · Opened May 7, 2026
Run search: relative time shows ~5 hours ago for freshly uploaded runs (timezone parsing) Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

openml/openml.org#398 · 3 comments · Opened Apr 9, 2026
[design] Should task lists return tags? Open

behavior

Difficulty 5/5 Over a week Newbie friendliness 25/100

openml/server-api#301 · 1 comment · Opened Mar 31, 2026
[Security] SQL Injection Vulnerability in datasets and tasks routers Open

bug triage

Difficulty 3/5 1-2 days Newbie friendliness 20/100

openml/server-api#281 · Opened Mar 20, 2026
Tasktype endpoint should gracefully handle malformed api_constraints values Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

openml/server-api#273 · 1 comment · Opened Mar 14, 2026
[UX BUG] Search fails to match names with underscores (e.g. "house prices nominal" misses "house_prices_nominal") Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

openml/openml.org#385 · Opened Mar 6, 2026
404 Error for not opening the developer docs on the website Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

openml/openml.org#383 · 2 comments · Opened Mar 5, 2026
[UX/UI] Sidebar responsiveness gap on intermediate screens (1280px) Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

openml/OpenML#1284 · 1 comment · Opened Feb 21, 2026
Downloads fetching incomplete files without reporting failure Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/openml.org#377 · Opened Feb 20, 2026
Update MinIO base image Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

openml/services#14 · Opened Feb 6, 2026
Move to a better update strategy for Elastic search Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

openml/server-api#233 · 3 comments · Opened Feb 3, 2026
False cache hits leading to corrupt downloads Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/openml.org#367 · 2 comments · Opened Jan 26, 2026
Add Comprehensive Code Quality Tools(PHPStan,Psalm,PHP-CS-Fixer) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

openml/OpenML#1272 · 1 comment · Opened Nov 20, 2025
Fix database schema patch: api_constraints should support multiple inputs per task type Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

openml/server-api#214 · 1 comment · Opened Nov 19, 2025
Add docstring linting (D-class rules) to ruff configuration Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/server-api#212 · Opened Nov 19, 2025
Security hardening: disable expose_php, raise max_input_time, remove Indexes Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

openml/OpenML#1268 · Opened Nov 17, 2025
Security hardening: disable expose_php, raise max_input_time, remove Indexes Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

openml/OpenML#1267 · 2 comments · Opened Nov 17, 2025
Security: sanitize/replace shell invocations to avoid injection Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

openml/OpenML#1265 · 1 comment · Opened Nov 17, 2025
Large uploads: raise php.ini max_input_time to avoid timeouts Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

openml/OpenML#1263 · 1 comment · Opened Nov 17, 2025
Security: Upgrade to PHP 8.x (7.4 is EOL) and ensure CI compatibility Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/OpenML#1261 · 1 comment · Opened Nov 17, 2025
Add a linting setup for current PHP codebase Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

openml/OpenML#1256 · Opened Nov 15, 2025
Modernize Issue Templates with YAML Forms Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

openml/OpenML#1254 · Opened Nov 15, 2025
Add security.yml Workflow Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

openml/OpenML#1249 · Opened Nov 15, 2025
Add ci.yml Workflow Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

openml/OpenML#1248 · Opened Nov 15, 2025
Add dependency-check.yml Workflow Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

openml/OpenML#1247 · Opened Nov 15, 2025
Add greetings.yml Workflow Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

openml/OpenML#1246 · Opened Nov 15, 2025
Add release.yml Workflow Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

openml/OpenML#1243 · Opened Nov 15, 2025
Add stale.yml Workflow Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

openml/OpenML#1242 · 2 comments · Opened Nov 15, 2025
Add labeler.yml Workflow Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

openml/OpenML#1240 · 2 comments · Opened Nov 15, 2025

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