Balance Checker
Look up Bitcoin address balances from a daily snapshot. Send your key in the X-API-Key header.
| GET | /v1/address/{address} | One address |
| POST | /v1/lookup | Many addresses, JSON body |
| GET | /v1/status | Snapshot date and size |
| GET | /healthz | Liveness |
curl -H 'X-API-Key: YOUR_KEY' https://lookup.weekendbuild.ing/v1/address/1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa