# ProudGlobeHead Markets

> Prediction markets, explained by the money.

Track what is moving, where prediction markets disagree, what the largest traders are doing, and what public conversation is moving alongside them.

ProudGlobeHead Markets normalizes prediction markets from Kalshi and Polymarket into one model, matches contracts that
describe the same event across both venues, measures movement, trade flow and public conversation, and publishes a
data-backed briefing every morning at 08:00 America/New_York.

## What makes this different from an odds comparison page

- Contracts are matched on extracted structure (entities, thresholds, comparison operators, dates, resolution
  sources), not title similarity, and graded A/B/C by how equivalent they really are.
- Theoretical cross-market edge is computed only for Grade A pairs, from executable order-book ladders walked at
  six position sizes — never from displayed midpoints.
- The largest trade and the most price-impactful trade are ranked separately.
- Explanations separate established observation from plausible explanation from unsupported speculation, and every
  number in them is validated against a frozen evidence package.

## Conventions

- Probabilities are decimals between 0 and 1.
- Movement is reported in percentage points (41% to 55% is +14.0 points), never as a relative percentage.
- Market ids are prefixed by venue: `k:TICKER` for Kalshi, `p:ID` for Polymarket.
- All timestamps are UTC; the interface displays America/New_York.

## Free endpoints

- https://proudglobehead.com/markets/api/overview — current intelligence state
- https://proudglobehead.com/markets/api/movers — ranked movers, both venues, four windows
- https://proudglobehead.com/markets/api/gaps — cross-venue discrepancy board
- https://proudglobehead.com/markets/api/trades — largest and most impactful trades
- https://proudglobehead.com/markets/api/markets/{id} — full record for one market
- https://proudglobehead.com/markets/api/briefing/latest — most recent morning briefing
- https://proudglobehead.com/markets/api/search?q= — search both venues and matched pairs
- https://proudglobehead.com/markets/api/health — upstream freshness

## Paid endpoints (x402, USDC on Base)

Request without payment to receive HTTP 402 with machine-readable requirements.

- https://proudglobehead.com/markets/api/pro/what-is-moving — Ranked cross-venue movement with significance and flow context. 0.10 USDC. Updated every 5 minutes.
- https://proudglobehead.com/markets/api/pro/full-gap-feed — Complete Kalshi/Polymarket discrepancy board. 0.20 USDC. Updated every 5 minutes.
- https://proudglobehead.com/markets/api/pro/pair/{id} — Deep matched-pair intelligence. 0.25 USDC. Updated every 5 minutes; matching re-verified hourly.
- https://proudglobehead.com/markets/api/pro/flow/{marketId} — Trade-flow analysis for one market. 0.15 USDC. Updated every 5 minutes.
- https://proudglobehead.com/markets/api/pro/timeline/{marketId} — Reconstructed event timeline. 0.15 USDC. Updated every 5 minutes.
- https://proudglobehead.com/markets/api/pro/morning — Complete morning briefing data package. 0.25 USDC. Updated daily at 08:00 America/New_York.
- https://proudglobehead.com/markets/api/pro/data-package/{marketId} — Complete data package for one market. 0.25 USDC. Updated every 5 minutes.

Payment discovery: https://proudglobehead.com/markets/.well-known/x402
Full schema: https://proudglobehead.com/markets/openapi.json

## Pages

- https://proudglobehead.com/markets — overview
- https://proudglobehead.com/markets/movers — movement leaderboard
- https://proudglobehead.com/markets/gaps — where the venues disagree
- https://proudglobehead.com/markets/trades — largest and most impactful trades
- https://proudglobehead.com/markets/briefing — morning briefing archive
- https://proudglobehead.com/markets/methodology — how every number is produced, and its limits

## Attribution and limits

Market data belongs to Kalshi and Polymarket. This service
publishes informational analytics only. Nothing here is financial advice, and a theoretical edge is not a
guaranteed profit.

Published by the ProudGlobeHead Markets Desk.