--- url: "https://predictiontoolkit.com/tools/opinion/" publisher: "PredictionToolkit" dateModified: "2026-11-03" --- [← Prediction platforms]() ![OPINION logo]() Platform # OPINION OPINION combines event-market discovery, portfolio and PnL views, and a documented resolution and dispute process. Traders can use a Web3 wallet or a supported social-account route, while builders have separate Open API, WebSocket and Python/TypeScript CLOB SDK resources. [**3.5**/ 5Editorial rating]() [Editorial assessment]() [Open the OPINION market app]() app.opinion.trade **Available on:** Web · API **Pricing:** [See plans and costs ↓]() [Screenshots]() [Explore alternatives]() **Availability: public** [Prediction platforms]() [Data APIs]() +1 more [SDKs & libraries]() ## Screenshots and interface Product preview1 / 2 Overview of the outcome-market platform. ## What is OPINION? Browse macro, crypto, pre-TGE, equities, politics and sports questions, then compare the event’s outcome contracts. Read the measurement period and resolution source before expressing a view. Portfolio analytics show positions and performance, while points and VIP programs track activity or fee discounts separately from realized profit. Resting liquidity can qualify for maker incentives, but a limit order is not automatically a maker order. Fees apply per matched fill, so crossing several prices can matter. For small tickets, the minimum charge can dominate the curve-based percentage even after multiplicative discounts; the platform’s coverage of trade-settlement gas does not cover every other action. ### Who it is for - Traders researching macro-event contracts. - Users supplying resting order-book liquidity. - Developers integrating venue data and trading. ## Features and coverage - **Market categories and quotes** Discover macro, crypto, pre-TGE, equities, politics and sports questions and compare available outcome contracts. - **Portfolio and PnL** Review positions and performance in the trading workspace. - **Wallet or social access** Choose a documented Web3-wallet or supported social-account connection path. - **Maker liquidity incentives** Provide resting liquidity under the applicable rebate program and distinguish it from immediate taker fills. - **Points and VIP programs** Inspect activity points and fee-discount programs separately from trading profit. - **Resolution and dispute documentation** Read the documented outcome process and the selected market’s resolution terms. - **Developer interfaces** Use Open API, WebSocket and Python/TypeScript CLOB SDKs for data and trading integrations. ## Workflows with OPINION ### Research a macro event Match the measurement period and resolution source to the forecast you intend to express. ### Compare order costs Establish maker/taker treatment from whether the order rests or crosses. If it incurs taker charges, use its matched-fill path and the minimum fee to estimate a small ticket's cost, rather than relying on the headline percentage. ### Integrate data before execution Start with documented identifiers and streams, then add authenticated execution after validating the data workflow. ## Pricing and total cost Makers have no trading fee; takers pay on notional using market coefficient × P × (1−P) with multiplicative discounts. Budget small orders against the $0.25 minimum as well as the up-to-1% curve rate: discounts do not remove that floor, and the effective percentage can be higher. Orders and withdrawals require at least $5. The venue covers trade-match/settlement gas, with user-paid gas possible for other actions. ## Getting started **Before you start:** Discounts do not remove the $0.25 minimum fee. 1. Read the selected market’s rules and choose a wallet or supported social login. 2. Confirm settlement asset and chain, then inspect the market’s coefficient and discounts. 3. Check whether a limit order will rest or match immediately, then track fills, PnL and resolution. The $0.25 minimum fee still applies when discounts reduce the curve-based fee. [Read OPINION fees, rules and developer documentation]() ## Useful links ### What to check - Discounts do not remove the $0.25 minimum fee. - Fees are assessed per matched fill, which matters when an order crosses several prices. - A limit order is not automatically a maker order. - Points are separate from realized trading profit. A closer look ## Ratings & reviews Editorial rating **3.5**/ 5 0 user reviews PredictionToolkit editorial ### Our take on OPINION Published categories, developer resources and maker/taker mechanics provide useful integration detail. Minimum fees and user-paid gas on some actions make headline percentages insufficient for a complete cost comparison. Based on documented features, setup and access terms. [How we rate]() ### User reviews 0 The main score switches to user ratings after 5 published reviews. **Be the first to share your experience** A specific example helps the next person choose the right tool. ## Related tools [Browse category]() ![Duel Duck public duel cards on its Solana venue]() ![Duel Duck logo]()[Duel Duck]() Platform**3.5**Editorial A separate Solana prediction venue for community-created yes/no duels and embeddable event questions. - Access Web Also in Related Prediction Market Platforms. ![Myriad prediction-market cards with probabilities and category navigation]() ![Myriad logo]()[Myriad]() Platform**3.5**Editorial Trade outcome shares after distinguishing the market model, order behavior and applicable fee schedule. - Access Web · API · CLI Compare another on-chain order-book venue. ![OrcaLayer wallet leaderboard and filtering controls.]() ![OrcaLayer logo]()[OrcaLayer]() Analytics**3.5**Editorial Read-only Polymarket wallet research with farming filters, monitoring and licensed data access. - Access Web · Telegram · API Compare read-only OPINION analytics. ## Frequently asked questions about OPINION ### Do makers pay trading fees? The published policy says makers are not charged trading fees. A limit order must actually rest rather than match immediately to be treated accordingly. ### Can discounts reduce the fee below $0.25? The listed minimum still applies after discounts. ### Are developer tools available? The documented stack includes Open API, WebSocket and Python/TypeScript CLOB SDKs. ### Does the user always pay settlement gas? The docs say the platform covers trade matching and settlement gas; some other actions still have user-paid gas. In this profile