Polymarket whale tracking API
OrcaTrace is a pay-per-call Polymarket whale tracking API for AI agents and developers: it surfaces tracked-wallet position entries annotated with each wallet’s hold-to-resolution calibration — a follow, fade, or neutral label computed from resolved, on-chain-auditable positions. The whale scorecard is verifiable and free (full wallet addresses published), and the calibration table and whale-annotated signals settle per call in USDC on Base over x402, with no accounts or API keys.
Whale endpoints
- free
GET /v1/track-recordWhale-calibration scorecard
- $0.01
GET /v1/signalOne Polymarket feed item
- $0.03
GET /v1/signalsBatch Polymarket feed items
- $0.05
GET /v1/whalesWhale calibration table
/v1/track-record is the free, verifiable whale scorecard — the proof behind the paid calibration table.
How agents pay
Call a paid endpoint with no payment and OrcaTrace answers HTTP 402 with the exact price. Your agent signs an EIP-3009 USDC authorization on Base and retries with the payment header; the whale table returns after settlement.
$ curl https://api.orcatrace.dev/v1/track-record # free scorecard $ curl https://api.orcatrace.dev/v1/whales HTTP/2 402 Payment Required # agent signs a USDC payment on Base and retries HTTP/2 200 OK
FAQ
- Is there a Polymarket whale tracking API with no API key?
- Yes. OrcaTrace exposes whale intelligence over plain HTTP with no API key or account. The /v1/track-record scorecard is a free read; the /v1/whales calibration table and whale-annotated signals settle per call over x402.
- How is a whale's follow/fade label calculated?
- Each tracked wallet's follow/fade/neutral label is computed from its resolved, on-chain-auditable positions (at least 30 resolved entries) as a hold-to-resolution calibration. Because the scorecard publishes full wallet addresses, you can verify the record on-chain yourself.
- How does an agent pay to pull whale data?
- A paid endpoint answers with HTTP 402 and the price — the whale calibration table is $0.05. The agent signs an EIP-3009 USDC authorization on Base and retries with the payment header. No accounts, no keys.
- How fresh is the whale feed?
- Whale entries flow through OrcaTrace's index-polled signal feed alongside repricings and predetermined-outcome signals. Poll the free /v1/index feed to detect new items, then pull the whale-annotated signals or the calibration table.