BlockchainLive

Predict Price

Live best bid, best ask, and midpoint for a Polymarket outcome token (CLOB token id — get it from predict.markets clobTokenIds).

$0.00115USDC per call · settled on Base · no subscription, no API key

Overview

Live best bid, best ask, and midpoint for a Polymarket outcome token (CLOB token id — get it from predict.markets clobTokenIds). The midpoint is the market's implied probability for that outcome. Read-only from Polymarket's CLOB.

Endpoint

MethodEndpointPriceDescription
GET/v1/marketplace/api/predict-price$0.00115Invoke Predict Price (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/predict-price

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/predict-price
Open in the marketplace

Docs: Getting started · x402 payments · x402 discovery · All APIs