skill-public-api

A Claude skill that turns the community list public-apis/public-apis into a searchable catalog: 1,953 free APIs in 51 categories, each with auth type, HTTPS and CORS.

Ask Claude things like "find me a free weather API with no key that works from the browser" and it searches the catalog, then returns 2–5 ranked candidates instead of a link dump.

What's inside

public-apis/                 # the skill (copy this folder)
├── SKILL.md                 # when to trigger + how to search and recommend
├── references/catalog.tsv   # category, name, description, auth, https, cors, url
├── scripts/search.py        # keyword search with --no-auth / --https / --cors filters
└── LICENSE
tools/build_catalog.py       # regenerates catalog.tsv from the upstream README

The sponsored sections of the upstream README were removed, and UTM tracking was stripped from links.

Install

Claude Code: copy the public-apis folder into ~/.claude/skills/:

git clone https://github.com/Chinorab/skill-public-api.git
cp -r skill-public-api/public-apis ~/.claude/skills/

claude.ai: download public-apis.zip from the latest release and upload it under Settings → Capabilities → Skills.

Search from the command line

python public-apis/scripts/search.py weather --no-auth --https --cors
python public-apis/scripts/search.py --category "Currency Exchange" --no-auth

Refresh the catalog

git clone --depth 1 https://github.com/public-apis/public-apis.git upstream
python tools/build_catalog.py upstream/README.md public-apis/references/catalog.tsv

Snapshot date: 2026-09-29. The upstream list is community-curated, so some entries may be outdated. The skill tells Claude to check that an API is still live before relying on it.

License

MIT. The catalog data comes from public-apis/public-apis (MIT, © 2022 public-apis).