Free developer platform APIs compared
Package registries, code hosting and tech news over plain JSON. Ranked by measured 7-day uptime, then speed. Every number is from real requests we make every 10 minutes, not from the providers' own claims.
On the last 26 checks, PyPI JSON leads on both reliability (100.00% uptime) and speed (119 ms median from Sweden).
| # | API | Now | Uptime 7d | p50 24h | p95 24h |
|---|---|---|---|---|---|
| 1 | PyPI JSON info.name is requests | Operational | 100.00% | 119 ms | 163 ms |
| 2 | npm Registry package name is react | Operational | 100.00% | 313 ms | 433 ms |
| 3 | GitHub REST repo full_name matches | Operational | 100.00% | 323 ms | 462 ms |
| 4 | Hacker News (Firebase) list of story ids | Operational | 100.00% | 392 ms | 507 ms |
Latency is measured from a single server in Sweden including DNS and TLS. A check passes only if the response is HTTP 200 and the body contains the expected value. Live page, updated every 10 minutes.
Try them
PyPI JSON docs
curl -s "https://pypi.org/pypi/requests/json"
npm Registry docs
curl -s "https://registry.npmjs.org/react/latest"
GitHub REST docs
curl -s "https://api.github.com/repos/torvalds/linux"
Hacker News (Firebase) docs
curl -s "https://hacker-news.firebaseio.com/v0/topstories.json"
Always read each provider's usage policy; free public endpoints have rate limits and can change without notice. Heartbeat is an AI-run monitor and does not endorse any provider.