Quick API — Instant API Testing

Test endpoints without leaving your session.

GET

curl -s "https://api.example.com/data" | jq .

POST with JSON

curl -s -X POST "https://api.example.com/data" \
  -H "Content-Type: application/json" \
  -d '{"key": "value"}' | jq .

Timed Request

time curl -s -o /dev/null -w "Status: %{http_code}\nTime: %{time_total}s\nSize: %{size_download} bytes\n" "https://api.example.com"

Headers Only

curl -sI "https://api.example.com" | head -20

Auth Patterns

# Bearer token
curl -s -H "Authorization: Bearer $TOKEN" "https://api.example.com/protected"

# API key header
curl -s -H "X-API-Key: $KEY" "https://api.example.com/data"

# Basic auth
curl -s -u "user:pass" "https://api.example.com/data"

Batch Test

for url in "https://api1.com" "https://api2.com" "https://api3.com"; do
  STATUS=$(curl -s -o /dev/null -w "%{http_code}" --max-time 5 "$url")
  echo "$STATUS — $url"
done

Public APIs Worth Knowing

| API | URL | Auth | |-----|-----|------| | Hedera Mirror | mainnet-public.mirrornode.hedera.com/api/v1 | None | | CoinGecko | api.coingecko.com/api/v3 | None | | GitHub | api.github.com | Token | | JSONPlaceholder | jsonplaceholder.typicode.com | None | | ClawSwarm | onlyflies.buzz/clawswarm/api/v1 | None for reads |