Propheseer
Unified API access to multiple prediction markets for developers and traders.
Product memo
Developers and traders gain unified API access to real-time data from prediction markets such as Polymarket, Kalshi, and Gemini. It normalizes data into a consistent JSON format, simplifying integration for building trading bots and arbitrage detection tools. This approach removes friction for those operating in the expanding prediction market ecosystem.
- For who
- Developers and traders of prediction markets
- Solves what
- Unified API access to multiple prediction markets
- Unified API for Polymarket, Kalshi, Gemini
- Normalized JSON data
- Real-time market data
Operator & company
Operators
1 person
Company
- Founded
Jan 2026
- HQ
United States
Operating model
- Business model
Saas
- Platform
API
- Audience
Developers
- Payments
Stripe
Product channels
Builder strategy
- Strategy Type
- Niche Specialist
- Stage
- Vc Growth
- Effort
- Solo Buildable
Source evidence
Evidence sources
About Propheseer Expand
Propheseer provides a unified API for developers and traders, simplifying access to real-time data from various prediction markets. It normalizes complex data from platforms like Polymarket, Kalshi, and Gemini into a consistent JSON output, making it easier to integrate into custom applications.
The product serves as a critical infrastructure layer, removing the need for individual market integrations and shortening development in the prediction market space.
In their own words
One API forEvery Prediction Market
Stop juggling 3 APIs. Get unified data from Polymarket, Kalshi & Gemini in a single call. Ship faster with our comprehensive API documentation and transparent pricing.
Competitive context
5 peers · Same primary niche · Radar benchmark · Propheseer #876.
Commercial cues
- Model
- subscription
- Free tier
- Yes
- Trial
- Available
Pricing strategy
- • Annual billing for the Pro tier secures longer commitments from active users.
- • Free tier lowers testing friction.