Vellium & Co

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eu-verify

Top open Polymarket prediction markets for a topic, ranked by 24h volume: event title, end date, and per-market outcome probabilities (0-1) with USD volume, from the public Gamma API (live on-chain odds). Query: ?tag=crypto|politics|economy

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
182 ms
Price
$0.010 per call
Paying buyers, last 30 days
3 (directory's own records)
Paid calls, last 30 days
3
Category
Blockchain reads
Address
https://x402-datashop-production.up.railway.app/v1/predict/polymarket

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/0ab8191ca2c5.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].