# US Congress Trades Stats Volume API (https://www.socialcrawl.dev/platforms/us_congress_trades/stats-volume) > Returns disclosed trade counts, buy vs sell, and total value grouped by day, week, or month over a lookback window. TL;DR: `GET /v1/us_congress_trades/stats/volume` costs 1 credit per call and returns SocialCrawl's unified JSON schema. Single x-api-key auth, 100 free credits on signup. ## Parameters | Parameter | Required | Description | | --- | --- | --- | | `days` | no | Lookback in days, 7 to 3650. Default 365. | | `period` | no | day, week (default), or month. (day \| week \| month) | ## Code example ```bash curl "https://www.socialcrawl.dev/v1/us_congress_trades/stats/volume" \ -H "x-api-key: sc_YOUR_API_KEY" ``` See the full US Congress Trades API: https://www.socialcrawl.dev/platforms/us_congress_trades ## Pricing - Standard endpoints: 1 credit per call - Advanced endpoints: 5 credits per call - Premium endpoints: 10 credits per call - 100 free credits on signup, no credit card required. Cached responses cost 0 credits. Credit packs never expire. - Full pricing: https://www.socialcrawl.dev/pricing