API quickstart

Full reference: interactive API docs · openapi.yaml

Look up a call sign

curl https://opencallbook.com/api/v1/licenses/W1AW

Search

curl 'https://opencallbook.com/api/v1/search?q=smith&state=MN&class=E,G&sort=recent'

Cross-service by FRN

curl https://opencallbook.com/api/v1/frn/0002274249

Stats

curl https://opencallbook.com/api/v1/stats

Rate limits

• Anonymous: 60 requests / minute / IP.
• API key: configurable, defaults to 600 / minute. Issuance UI coming in a later phase — for now, contact the maintainer.