🐋 polywhale

Polymarket Smart-Money Positioning API — a live, auto-produced datum: for each top-volume Polymarket market we compute the net whale USDC flow (aggregated from the public large-trade feed) and the top-holder directional lean + concentration. Not single-trade "whale alerts" — the aggregate positioning per market. Paid in USDC on Base to a self-custodial address; no account, no login, no KYC.

Free sample: /sample — today's top-3 markets, direction only.  •  Full datum: /data (HTTP 402 until paid).

Buy it (account-free, ~$0.10 USDC on Base)

  1. GET /checkout → returns a unique exact amount and our address.
  2. Send that exact USDC amount on Base to:
    0xe38a57958e4b09984912dC63251D61583690D370
  3. GET /claim?order=<id> → we verify the transfer on-chain (public RPC) and return an access token.
  4. GET /data?access=<token> → the full JSON snapshot.

Settlement is verified purely from public Base RPC — no facilitator, no Coinbase, no marketplace payout.

Or via x402

GET /data with no access returns HTTP 402 and a standard x402 accepts block (scheme exact, network base, asset USDC, payTo ours) plus the account-free checkout above. See /data.

Data source: Polymarket public gamma-api + data-api. Deterministic & independently verifiable. This is market-positioning data, not financial advice.