Transparent pricing, no surprises
Two products. Pick your vessel.
Free: browse the full leaderboard, and see who's trading on every feed — with 3 free reveals. Unblur everything, in real time, with a membership. View leaderboard →
7-DAY FREE TRIAL
Harpoonist Membership
Annual plan: $200/yr (2 months free)
$20/mo
- ✓Real-time filingsCongressional & insider trades — as ingested
- ✓Full history2023 → present
- ✓WatchlistsUp to 100 items
- ✓Alerts20 rules — webhook, Discord, email
- ✓Performance leaderboard & prices
7-DAY FREE TRIAL
Developer API
Annual plan: $390/yr (2 months free)
$39/mo
- ✓API access50,000 requests/month
- ✓Rate limit60 req/min
- ✓Bulk export
- ✓MCP serverQuery Harpoonist from Claude & AI assistants
- ✓Real-time + full historySame data access as membership
API keys are minted at Account → API keys after subscribing.
Need higher volume or commercial use? Contact us →
Membership and API plans include real-time data as it is ingested. Nothing here is investment advice.