--- title: "Struct Alternative: A Trader Product Against a Polymarket API and Its Showcase Dashboard" canonical: "https://0xinsider.com/compare/struct-alternative" datePublished: "2026-09-17" dateModified: "2026-09-17" description: "0xinsider vs Struct: a published sports-and-esports grade against a Polymarket data API whose free showcase dashboard could not be reached on 2026-09-17." --- # Struct Alternative: A Trader Product Against a Polymarket API and Its Showcase Dashboard Last updated: 2026-09-17 Canonical: https://0xinsider.com/compare/struct-alternative Struct sells Polymarket API infrastructure with a free self-serve tier and a dashboard called Struct Explorer. 0xinsider is a purpose-built sports-and-esports product with a published grade. ## TL;DR Struct is a Polymarket data-infrastructure company: a self-serve API with a free tier, mark-to-market wallet P&L, cross-venue market matching in early access, and Struct Explorer, an open-source dashboard built to show what the API can do. Explorer's own site returned a bot-verification challenge on every fetch during this review, so its facts here come from its GitHub README rather than a live check. 0xinsider is a purpose-built sports-and-esports product: a published grade with eligibility floors, a full risk-metric set, and no self-serve API tier. ## Highlights | Metric | 0xinsider | Struct | Winner | | --- | --- | --- | --- | | Self-serve API access | Requires an active Pro subscription | Free tier (5,000 credits/mo), plus pay-per-call in USDC | Struct | | Venue coverage | Polymarket | Polymarket live; cross-venue market matching (Kalshi, Limitless, Predict.fun, Hyperliquid) in early access | Struct | | Trader grade | Published grade with eligibility floors | Trader DNA archetype; method not published, no composite score found | 0xinsider | | Live verification on 2026-09-17 | Fully reachable | explorer.struct.to returned an HTTP 429 challenge to every fetch | 0xinsider | ## Comparison | Feature | 0xinsider | Struct | Winner | | --- | --- | --- | --- | | Type | Prediction-market analytics for sports and esports | Polymarket data-infrastructure company; Struct Explorer is its open-source showcase dashboard | -- | | Platforms and venues | Polymarket | Polymarket live; 5-venue market matching in early access (Kalshi, Limitless, Predict.fun, Hyperliquid, plus Polymarket) | Struct | | Self-serve API tier | None; API access requires Pro | Free tier, 5,000 credits/month, plus x402 pay-per-call in USDC | Struct | | Trader scoring | 0-100 grade, F-to-S, with eligibility floors above C | Trader DNA: a seven-axis radar archetype; method not published in its README | 0xinsider | | Risk metrics per trader | Sharpe, Sortino, drawdown, expectancy, VaR, Kelly fraction | PnL, win rate, hold time, and drawdown risk via the API, per its docs | 0xinsider | | Insider / unusual-activity detection | Insider Radar: statistical flags with wallet, market, and timestamp | An 'Insider Finder' AI Chat agent that requires an API key | Tie | | Alerts | Email on named wallets and markets | 30+ in-app alert types and 30+ webhook event types, plus open-source Telegram alert and scanner bots | Struct | | MCP server | Hosted remote MCP server, on Pro | Hosted MCP server at api.struct.to/mcp, two auth methods | Tie | | Developer / builder analytics | None | Per-builder fee, retention, and concentration analytics, plus builder comparison | Struct | ## What Struct is, and what we could not verify Struct is a Polymarket data-infrastructure company, describing itself in its own docs as 'the fastest API for Polymarket.' Struct Explorer, its open-source consumer dashboard, is a showcase: its GitHub description calls it a project that 'demonstrates what can be built on top of the Struct SDK,' with trader profiles, PnL charts and calendars, a leaderboard, and a Trader DNA archetype radar. explorer.struct.to returned an HTTP 429 'Vercel Security Checkpoint' page to every fetch attempted on 2026-09-17, for the home page, robots.txt, sitemap.xml, and the traders route alike. So the Explorer facts in this comparison come from its open-source repository's README (last pushed 2026-08-03), not a live check of the deployed site, and the deployed product may since have changed. ## Venue coverage and the API Struct's API covers Polymarket live today, with cross-venue market matching in early access across Kalshi, Limitless, Predict.fun, and Hyperliquid. Its free tier gives 5,000 credits a month with no subscription, and an x402 pay-per-call option settles each request in USDC with no minimum. 0xinsider covers Polymarket only, and its API and MCP server require an active Pro subscription; there is no free self-serve tier. **Verdict (Struct):** A free API tier and a path to more venues. ## Trader profiles and scoring Struct Explorer's README describes 'mark-to-market and fee-accurate' PnL, a PnL calendar heatmap, and a Trader DNA archetype built from a seven-axis radar of lifetime trading stats. How that archetype is computed is not published in the README, and no composite grade was found. 0xinsider's grade is about 95% realized (banked) profit, and eligibility floors do real work: anything above a C needs verified net-positive realized profit, and the top three grades also need a real resolved-market count and a survivable worst drawdown. The full risk-metric set (Sharpe, Sortino, drawdown, expectancy, VaR, Kelly fraction) ships on every graded wallet. **Verdict (0xinsider):** A published, floor-gated grade against an undocumented archetype. ## Developer tools, alerts, and MCP Struct's docs describe 30+ in-app alert types and 30+ webhook event types, plus open-source Telegram bots for alerts and search that anyone can fork. Its dashboard also runs an AI chat agent with an 'Insider Finder' mode, which needs an active API key to use. A hosted MCP server sits at api.struct.to/mcp, and Struct also offers per-builder fee, retention, and concentration analytics, a developer-facing feature with no 0xinsider equivalent. 0xinsider's alerts run by email today on the wallets and markets a reader names, and its own hosted MCP server ships on Pro. **Verdict (Struct):** A wider alert surface and developer tools 0xinsider does not build. ## What each one costs Struct's API pricing is published in a straight credits table: Free ($0, 5,000 credits/mo), Hobby ($49/mo), Startup ($299/mo), Scale ($999/mo), and custom Enterprise pricing, plus two months free on annual billing. What Struct Explorer itself costs an end user, or whether any of its features are paywalled, is not published. 0xinsider's free account includes the full trader leaderboard, full trader profiles with Insights, the previous day's large trades, and one Pick of the Day. Pro adds the live large-trade feed, custom alerts, Insider Radar, the REST API and MCP server, and in-game position changes while a game is live. Current plans are on the [pricing page](https://0xinsider.com/pricing). ## Which one to use Use Struct if the job is building on top of Polymarket data yourself: a free self-serve API tier, webhooks, an MCP server, and a path to other venues once market matching leaves early access. Use 0xinsider if the job is reading a sports and esports grade someone else built and verified, with published eligibility floors and a full risk-metric set, and no API key required to start. ## Best for 0xinsider - Traders who want a published, floor-gated grade instead of an undocumented archetype score - Sports and esports traders who want a dedicated per-game board and in-play tracking - Readers who want the full quant risk-metric set without touching an API ## Best for Struct - Developers who want a free, self-serve Polymarket API with pay-per-call pricing - Anyone who wants price and liquidity matched across five prediction and event-contract venues - Teams that need builder-code fee, retention, and concentration analytics ## 0xinsider: Pros & Cons **Pros** - Published grade with eligibility floors, not an undocumented archetype score - Full risk-metric set (Sharpe, Sortino, drawdown, expectancy, VaR, Kelly) on every graded wallet - Dedicated sports and esports product with live per-game boards - No API key required to read the free tier **Cons** - No free self-serve API tier; Struct's starts at 5,000 credits a month for $0 - Polymarket only; Struct's market matching spans five venues in early access - No builder-code or protocol-level analytics ## Struct: Pros & Cons **Pros** - Free self-serve API tier, plus x402 pay-per-call pricing - Cross-venue market matching across Polymarket, Kalshi, Limitless, Predict.fun, and Hyperliquid (early access) - Open-source Telegram alert and scanner bots, plus a hosted MCP server - Builder-code fee, retention, and concentration analytics with no 0xinsider equivalent **Cons** - No published composite trader grade; the Trader DNA archetype method is not documented - Explorer's end-user pricing is not published, and whether any feature is paywalled could not be confirmed - explorer.struct.to returned a bot-verification challenge to every fetch on 2026-09-17, so its live dashboard could not be checked directly