PREDICTION MARKET TOOLS
Best Kalshi Tools: Research, Analytics & Data APIs
Find tools with documented Kalshi support, compare free access and paid plans, and choose a research or developer workflow.
Checked 2026-09-29. This is a shortlist by documented use case, not a universal ranking or a claim that a tool improves trading returns. Read our selection and verification method.
Start with the official Kalshi API for a venue-specific developer project. Consider OddsPipe or Oddpool when you need normalized data across exchanges. Alphascope is a browser-based research option. All four document Kalshi support; Polymarket-only wallet tools are excluded.
For Kalshi trading bots, first verify authenticated API support, permissions, order limits and failure handling. This shortlist does not endorse an untested execution bot. A data API alone is not an automated strategy.
| Tool / strongest fit | Interface | Pricing evidence | Key limitation |
|---|---|---|---|
| Prediction Hunt / Prediction.com Comparing the same event across venues, then checking each contract’s rules before acting on a price difference. | web, api | Public odds pages can be browsed without signing in. API documentation lists Free (1,000 requests/month), Dev ($49/month) and Pro ($249/month), with separate endpoint and streaming limits. Confirm current plan terms. | A matching question or displayed spread does not guarantee identical settlement rules or an executable arbitrage. |
| OddsPipe Building a comparison dashboard without maintaining all venue adapters yourself. | api | Advertised plans: Free, Build $49/month, Launch $99/month, Scale $299/month. Usage allowances differ; verify before buying. | Matched questions may have different resolution rules or deadlines. |
| Oddpool Developers who need consistent data across Kalshi and Polymarket. | api | Advertised Free tier: 1,000 requests/month. Pro $30/month and Premium $100/month; institutional access is quoted separately. | The public site announces that Oddpool is joining Kalshi; confirm current cross-venue coverage and terms. |
| Alphascope Comparing a model’s assumptions with market prices and underlying news. | web | The public site offers a free starting tier. Paid limits and prices were not verified. | Model forecasts are not guarantees and should be checked against primary evidence. |
| Kalshi API A Kalshi-specific dashboard or research script that does not need a cross-venue vendor. | api | The documented public REST endpoints need no API key. Authenticated endpoints and trading have separate requirements and fees. | WebSocket access requires authentication. |
Evidence and tradeoffs
Prediction Hunt / Prediction.com profile →
DOCUMENTATION CHECKED · 2026-09-29
Who Prediction Hunt / Prediction.com is for
Comparing the same event across venues, then checking each contract’s rules before acting on a price difference.
- Supported venues
- polymarket, kalshi (international; US support not implied)
- Interface
- web · api
- Pricing and access
- Public odds pages can be browsed without signing in. API documentation lists Free (1,000 requests/month), Dev ($49/month) and Pro ($249/month), with separate endpoint and streaming limits. Confirm current plan terms.
Limitations to consider
- A matching question or displayed spread does not guarantee identical settlement rules or an executable arbitrage.
- The public interface and documentation were checked. Paid API access, data latency and trading execution were not tested.
- Coverage also includes products beyond the two venue filters shown here; confirm the exact platform and jurisdiction for a particular market.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
OddsPipe profile →
DOCUMENTATION CHECKED · 2026-09-29
Who OddsPipe is for
Building a comparison dashboard without maintaining all venue adapters yourself.
- Supported venues
- polymarket, kalshi (international; US support not implied)
- Interface
- api
- Pricing and access
- Advertised plans: Free, Build $49/month, Launch $99/month, Scale $299/month. Usage allowances differ; verify before buying.
Limitations to consider
- Matched questions may have different resolution rules or deadlines.
- Apparent spreads exclude execution risk, fees and available depth.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
Oddpool profile →
DOCUMENTATION CHECKED · 2026-09-29
Who Oddpool is for
Developers who need consistent data across Kalshi and Polymarket.
- Supported venues
- polymarket, kalshi (international; US support not implied)
- Interface
- api
- Pricing and access
- Advertised Free tier: 1,000 requests/month. Pro $30/month and Premium $100/month; institutional access is quoted separately.
Limitations to consider
- The public site announces that Oddpool is joining Kalshi; confirm current cross-venue coverage and terms.
- Dataset history, streaming access and retention depend on the plan.
- Normalized schemas do not make contracts legally or economically equivalent.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
Alphascope profile →
DOCUMENTATION CHECKED · 2026-09-29
Who Alphascope is for
Comparing a model’s assumptions with market prices and underlying news.
- Supported venues
- polymarket, kalshi, manifold (international; US support not implied)
- Interface
- web
- Pricing and access
- The public site offers a free starting tier. Paid limits and prices were not verified.
Limitations to consider
- Model forecasts are not guarantees and should be checked against primary evidence.
- Features advertised as coming soon, including automated strategies, are not counted here.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
Kalshi API profile →
DOCUMENTATION CHECKED · 2026-09-29
Who Kalshi API is for
A Kalshi-specific dashboard or research script that does not need a cross-venue vendor.
- Supported venues
- kalshi
- Interface
- api
- Pricing and access
- The documented public REST endpoints need no API key. Authenticated endpoints and trading have separate requirements and fees.
Limitations to consider
- WebSocket access requires authentication.
- Current and historical datasets have different endpoints; check retention and access requirements.
Evidence
Based on public product information. This is not a paid-product test, latency benchmark or performance rating. How we select and check tools.
Before choosing a tool
Check whether the data covers your exact venue and market. Confirm the time range, refresh rate, export limits and billing terms. Compare market rules before treating cross-venue prices as equivalent. Test a read-only workflow before granting trading permissions.