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True Execution Cost & Slippage Simulator
An API service that calculates the exact, fully-loaded cost of a trade on decentralized prediction markets, including hidden gas/relayer fees and order book slippage. This solves the critical pain point of official documentation misleading traders about actual settlement costs.
Why this matters
An API service that calculates the exact, fully-loaded cost of a trade on decentralized prediction markets, including hidden gas/relayer fees and order book slippage. This solves the critical pain point of official documentation misleading traders about actual settlement costs.
- · Built for Retail and institutional algorithmic traders who need precise cost modeling to maintain their trading edge..
- · Most likely monetization: Freemium API (free for basic pairs, paid for high-frequency/all-market access).
Score Breakdown
Market Signal
Differentiation
Action Plan
Validate this opportunity before writing code
Recommended Next Step
Validate
Promising signals, but needs confirmation. Create a landing page, collect email sign-ups, then decide.
Landing Page Copy Kit
Ready-to-paste copy based on real Reddit community language — no editing required
Headline
True Execution Cost & Slippage Simulator
Sub-headline
An API service that calculates the exact, fully-loaded cost of a trade on decentralized prediction markets, including hidden gas/relayer fees and order book slippage. This solves the critical pain point of official documentation misleading traders about actual settlement costs.
Who It's For
For Retail and institutional algorithmic traders who need precise cost modeling to maintain their trading edge.
Feature List
✓ Real-time 'True Fee' API endpoint ✓ Slippage simulator for large orders on thin books ✓ Historical database of actual vs. published fees
Where to Validate
Share your landing page in r/r/algotrading — that's exactly where these pain points were discovered.
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Community Voices
Real quotes from Reddit comments that inspired this opportunity
- “Effective per-fill cost crept up roughly 0.4-0.8% on small orders post-migration even though the published rate is the same.”
- “The docs page only quotes the protocol fee, not the wrapped settlement cost, which is the part that bit my strategy.”
- “On sub-50 orders it eats most of the edge.”
- “These books are too thin to be useful at this point.”
- “when you try to put more than a few dollars down, the 20 cent bet you thought you were getting averages out to be 80 cents”
Other opportunities in the same theme
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