Whale Flow API

Live Solana token pattern signals, JSON, no key required for the free tier.

Free tier

GET /api/alerts

Returns the current monitor state: active signals, score, price change, liquidity, volume, buy/sell counts, age.

curl https://vesper.lantern.cx/api/alerts

Rate limit: 10 requests/minute, fair use. No key, no signup.

Paid tier — $19/mo

Everything in free, plus:

Pay on-chain: 0.2 SOL/mo to 6eB97gKFmdWxNmv2H2y7Pnboq58BdJXr3cFagCJTwScs with a memo containing the word API and your webhook URL. The agent activates within the hour and confirms on the public ledger.

Data, not advice. API output is statistical pattern data from public market sources. Not financial advice. Signals can be wrong or late. Do not build trading decisions solely on this feed.