01 — THE ADVANTAGE

Same event.
Three different
prices.
One clear edge.

Polymarket is not the only prediction market. Manifold Markets often prices the same binary events. When Polymarket says 40% and Manifold says 68%, that's not a coincidence—it's an arbitrage opportunity. Polytragent searches both platforms automatically and calculates the divergence.

Manifold Search by Title

Polytragent strips date suffixes from the event title ("Trump 2026 Midterms" becomes the search query) and finds matching binary markets on Manifold. The top 3–5 by liquidity are selected.

Price Divergence Calculation

For each matched market, the algorithm calculates: (Manifold Price - Polymarket Price) / Polymarket Price. When the result is 28%, that's your edge—and your recommendation signal.

Active Forecasters Only

Metaculus and Swift Centre are historically accurate but no longer actively trading. Only active platforms (Polymarket and Manifold) are used. Dead markets don't inform live decisions.

polytragent — manifold search
polytragent — divergence analysis
02 — THE MECHANISM

How to find
the arbitrage
in seconds.

For every Polymarket event, Polytragent automatically queries Manifold Markets. The search is fuzzy—it handles date changes, synonym variation, and formatting differences. Once matching markets are found, prices are compared. A 15% divergence is small. A 28% divergence is actionable. The recommendation flows from the math.

01

Extract Event Title

From the Polymarket event slug, Polytragent infers the event title. "trump-2026-midterms" becomes "Trump 2026 Midterms".

02

Search Manifold API

Query /markets?search=TITLE. Get back matching markets, ranked by liquidity and creation date.

03

Filter Active Markets

Exclude resolved and expired markets. Select the top 3–5 by trading volume. Liquidity matters.

04

Extract YES Probabilities

From each platform, extract the current probability (price) for YES. Polymarket and Manifold both use 0–1 scales.

05

Calculate Divergence %

(Manifold - Poly) / Poly × 100 = divergence %. Store the result with timestamp and market IDs.

06

Determine Recommendation

Divergence > 10% = actionable edge. If Manifold > Poly: BUY YES on Poly. If Poly > Manifold: BUY NO on Poly.

07

Log & Report

Store the comparison (Poly price, Manifold price, divergence %) in predictions.json. Report to Telegram immediately.

Cross-platform
arbitrage
FAQ

Why does Manifold price differently than Polymarket?
Different user bases. Manifold skews towards casual forecasters. Polymarket skews towards informed traders with real money. Casual forecasters are often less calibrated—hence the price divergence.
Isn't arbitrage impossible due to fees?
Transaction fees are ~2% on both platforms. A 28% divergence still leaves 24%+ profit after fees. A 10% divergence is razor-thin. Polytragent flags divergences > 12% as actionable.
What if Manifold doesn't have a matching market?
The search is fuzzy. Most major events have matched markets. If no match is found, Polytragent skips the divergence calculation and relies on other signals (prediction history, Gamma data volume).
Can I arbitrage by trading on both platforms?
Yes. Buy YES on the cheaper platform (Poly), buy NO on the expensive one (Manifold). Lock in the divergence as profit. The trades will converge within hours as other traders spot the same edge.
How often do divergences appear?
Almost every major event has 5–20% divergences. 20%+ divergences happen 2–3 times per week across all active events. Polytragent finds them in seconds.
What about Metaculus and Swift Centre?
Both are inactive. Metaculus rarely updates. Swift Centre is dormant. Only live platforms (Poly and Manifold) are included in the comparison engine.

Find arbitrage
before anyone else.

Polytragent scans every major event for price divergences. Get alerts when edges appear.

Start trading smarter — $79.99/mo →
polytragent — example
Cross-platform comparison is automaticDivergences calculated in real-timeArbitrage signals are immediate

Risk Disclaimer: Prediction market trading involves significant financial risk. AI-powered research does not guarantee profits. Past performance is not indicative of future results. Polytragent is a research tool, not a financial advisor. Only trade capital you can afford to lose. This website does not constitute financial advice.