The platform directory.
A venue, a data API and a tax report solve different problems. Compare products by the job you need done.
Select by the job, then the product
A sourced product guide establishes its documented scope. It does not establish tested account performance or publisher approval.
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Prediction markets
Kalshi
Broad event contracts with series-specific trading costs.
- Costs
- General M=1 taker: $1.75 for 100 at $0.50; market exceptions apply.
- Useful for
- Researching defined events and order-book mechanics.
- Access
- US-focused event-contract product; market and account restrictions apply.
Polymarket
Separate US dollar and international crypto-based products.
- Costs
- Standard taker: 0.0695 × C × p × (1−p), cent half-even rounding.
- Useful for
- A documented US event-contract workflow.
- Access
- US product; KYC before funding/trading.
- Costs
- Category-specific taker fees and five-decimal precision.
- Useful for
- Understanding the distinction; no international trading CTA.
- Access
- US new positions restricted; educational context only.
Novig
Sports-focused games, futures and series-winner contracts.
- Costs
- v3 coefficient 0.06; $1.50 on $100 winning payoff at 0.50 when charged.
- Useful for
- Sports-contract mechanics and in-game versus futures costs.
- Access
- Consumer state/funding matrix not established by retrieved trading docs.
Interactive Brokers
Broker access to prediction markets within a broader account.
- Costs
- IBKR Lite $0 stock/ETF commissions do not establish a forecast-contract fee.
- Useful for
- Researching event access inside a brokerage; current contract fee needs evidence.
- Access
- US-election contracts described as eligible-US-resident only; other permissions are account/contract-specific.
Spot crypto
Kraken
Instant purchases and a separate Pro spot order book.
- Costs
- Pro Tier 1 maker 0.40% / taker 0.80%; instant 1% plus spread/payment.
- Useful for
- Choosing an execution interface and funding route.
- Access
- Reviewed US page excludes Maine and New York; US fiat funding is USD.
Coinbase
Simple buys and Advanced have different cost structures.
- Costs
- Simple buys include spread/quoted fees; Advanced rate is account-specific.
- Useful for
- Comparing a final quote or the Advanced workflow.
- Access
- US payment methods documented; product/asset eligibility differs.
Gemini
Compare ActiveTrader with equivalent order-book products.
- Costs
- Base ActiveTrader maker 0.60% / taker 1.20%; pair/tier exceptions.
- Useful for
- Evaluating an explicit spot and transfer schedule.
- Access
- Account and asset restrictions apply; no blanket availability inferred.
Crypto.com
The App and Exchange are separate product comparisons.
- Costs
- Variable admin fee disclosed in the App trade preview; possible card-issuer charges.
- Useful for
- Researching the App workflow without importing Exchange rates.
- Access
- App/product and regional permissions differ.
Research tools
KalshiSpy
Independent Kalshi trader-position and consensus analytics.
- Costs
- At review Premium displayed $63/month beside $90; dated promotion, not guaranteed.
- Useful for
- Inspecting advertised Kalshi consensus information critically.
- Access
- Independent supplier, not a Kalshi-operated product.
OddsJam
Advertised prediction trader signals and exit notifications.
- Costs
- Current prediction-specific price unverified; no adjacent plan price substituted.
- Useful for
- Evaluating signal coverage and execution limitations.
- Access
- Named venue labels do not establish US account integration.
Assymetrix
A developer API for prediction-market data workflows.
- Costs
- Free $0; Developer $49/month; Pro $199/month at review.
- Useful for
- Building a data workflow with explicit licence checks.
- Access
- API tier and data licence govern access/display.
CoinStats
Portfolio tracking across named crypto and wallet integrations.
- Costs
- Displayed Premium $13.99/month after trial; confirm selected billing term.
- Useful for
- Consolidating a supported crypto portfolio.
- Access
- Polymarket label does not verify US-product support.
TradingView
Charts, indicators, alerts and plan-specific data features.
- Costs
- Essential annual-view observation: $155.40 / 12 months ($12.95 equivalent). Checked 2026-10-25; current checkout, data and renewal separate.
- Useful for
- Chart and alert research rather than a proven trading strategy.
- Access
- Professional classification and exchange-data rights matter.
TrendSpider
Charting, scanning and no-code strategy research.
- Costs
- Standard annual-view observation: $615.60 / 12 months ($51.30 equivalent). Checked 2026-10-25; current checkout, data and renewal separate.
- Useful for
- Evaluating a combined chart, scan and strategy workflow.
- Access
- Product/support documentation available; paid workflow untested.
Tax tools
Koinly
Crypto imports, reconciliation and paid tax-year reports.
- Costs
- $49/100, $99/1,000, from $199/3,000+ transactions at review.
- Useful for
- Reconciling a complete supported crypto history before export.
- Access
- Supported crypto imports; event-contract tax workflow unverified.
CoinLedger
Crypto history aggregation, portfolio views and tax exports.
- Costs
- $49/100, $99/1,000, from $199/3,000+ transactions at review.
- Useful for
- Reconciliation and export for a documented supported tax year.
- Access
- Reviewed price page listed reports through 2025; event-contract support unverified.
Self custody
Trezor
Hardware signing for supported cryptoassets.
- Costs
- Safe 3 $59 / Safe 5 $129 USD in official metadata retrieved Oct 25; checkout/tax/shipping can differ.
- Useful for
- Secondary spot-crypto custody research, not event-contract access.
- Access
- Model, asset and network support matter.
Ledger
Hardware signing and supported wallet-app services.
- Costs
- Flex $249 / Stax $399 as cited by official Oct 16 model article; not a current checkout quote.
- Useful for
- Secondary supported-asset custody research.
- Access
- Model, asset and network support matter.