4 tagged no-api-key, measured the same way as everything else here.
Skill Claude CodeCodex
Call verified no-key public APIs. Use when the user needs a free HTTPS API with no signup — weather, geo, news, crypto, dictionaries, test data, or any category in the index.
ShellyDeng08/reddit-connector-skill
Skill Claude CodeCodex
Browse Reddit - search posts, read subreddits, view comments, and check user profiles using Reddit's public JSON API.
Skill Claude CodeCodex
Browser-automated Gemini Gem CLI (CDP-first) — chat, CRUD, image gen, deep research, --collab surgical-diff review. No API key.