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Get your API key
Request access with your use case — keys are issued manually, usually within one business day, and start with a free 7-day trial. A key looks like
if_xxxxxxxxxxxxxxxx.2
Make your first request
Pick your preferred client:
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Explore more
Pagination
Fetch large datasets page by page.
Whale alerts guide
Watch large wallets and react to their fills.
Wallet analytics guide
Reconstruct any HL wallet end-to-end.
Full API reference
Every endpoint across market data, analytics, cohorts, and system status — parameters and response schemas.