Placeholder route for the builder time-series. It currently returns an empty array until the attribution ETL is live.
GET https://data-api.forka.st/v1/builders/volume spits out a day-by-day record for each builder, including the ISO timestamp (dt), volume, active user count, rank, and verification badge data.
Pick the time horizon with timePeriod (same values as the leaderboard endpoint). The route does not paginate because each day is a separate array entry, so scroll or aggregate as needed on the client.