Read live odds across every prediction venue at once
Prediction-market odds and resolution data across Polymarket, Kalshi and more on one endpoint. Billed per call in USDC, with no venue accounts to maintain.
The call
One endpoint, priced in dollars before it runs and settled in USDC. No API key and no account — the request pays for itself.
GET /api/v1/pm/polymarket/markets
Host: blockrun.aiWhat it costs
Why per call
No seat, no minimum, no contract per vendor. Each request is quoted in dollars before it runs and settles on-chain, so an agent can pay for its own work without a human holding a credit card. How the payment works →
Related tools
Questions
Which venues are covered?
Polymarket and Kalshi among others, with canonical cross-venue markets so the same event lines up across them.
Is this trading or data?
Data. It reads odds, markets and resolutions; it does not place positions.
How is it billed?
Per call in USDC at the rate on this page, with no venue account or key required.
How fresh are the odds?
They are read live from each venue at request time rather than served from a daily snapshot.