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metengine

Query smart money analytics APIs for Polymarket, Hyperliquid, and Meteora via x402 payments.

6|20|Updated Mar 14, 2026
Search Tags:#polymarket#solana#x402#hyperliquid#usdc payments#meteora#smart money analytics
One-click install
npx skills add https://github.com/andresdefi/cryptoskills --skill metengine-andresdefi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: metengine
Source: https://github.com/andresdefi/cryptoskills/tree/main/skills/metengine
Command: npx skills add https://github.com/andresdefi/cryptoskills --skill metengine-andresdefi

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @x402/core, @x402/svm, @solana/kit, @solana/web3.js, @solana/spl-token, bs58.

What problem does it solve? AI agents lack real-time access to smart money analytics across prediction markets, perpetual futures, and Solana liquidity pools, and traditional data APIs require API keys, accounts, and subscriptions that agents cannot manage autonomously. ## Core Features & Use Cases - 63 Analytics Endpoints: Access wallet scoring, insider detection, capital flow tracking, leaderboards, and position analysis across Polymarket (27 endpoints), Hyperliquid (18), and Meteora (18). - x402 Pay-Per-Request: Pay per query in USDC on Solana Mainnet with no API keys or accounts; payment itself is authentication, with settle-after-execute so failed queries cost nothing. - Session Memory & Client Templates: Persist wallet setup, working bootstrap code, and endpoint learnings across sessions, plus a ready-made TypeScript client and worked examples for dashboards, whale tracking, and pool scanning. - Use Case: Ask your agent to find Polymarket markets where smart money disagrees with the current price, score the top wallets, and detect insider activity — paying a few cents of USDC per call. ## Quick Start Ask your agent to check the MetEngine health endpoint and then fetch the top 5 trending Polymarket markets over the last 24 hours using the x402 payment flow.

Frequently Asked Questions about metengine

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I query smart money wallets on Polymarket with an API?▼

Call MetEngine endpoints such as /api/v1/wallets/top-performers or /api/v1/markets/intelligence with a condition_id. Each paid request returns a 402 response first; sign a USDC payment on Solana and retry with the PAYMENT-SIGNATURE header to receive the data.

How does x402 payment work for API requests on Solana?▼

The first request returns HTTP 402 with payment requirements. You sign a USDC transfer locally using @x402/core and @x402/svm, then resend the request with the PAYMENT-SIGNATURE header. Settlement only occurs on successful 2xx responses, so failed queries cost nothing.

What data does MetEngine provide for Hyperliquid traders?▼

MetEngine offers 18 Hyperliquid endpoints covering trader leaderboards, full trader dossiers, per-coin PnL breakdowns, long/short ratios, whale trades, smart wallet signals, and long/short pressure analysis. Prices range from $0.01 to $0.20 USDC per request depending on tier and timeframe.

Do I need an API key to use the MetEngine analytics API?▼

No API keys or accounts are required. Payment in USDC on Solana Mainnet is the authentication. You only need a Solana wallet with SOL for transaction fees and USDC for per-request payments, plus the @x402/core, @x402/svm, and @solana/kit packages.

Why did my MetEngine payment fail with a 402 error after paying?▼

Common causes include sending payment before the transaction reaches confirmed commitment, reusing a single-use payment proof, sending the wrong token instead of USDC, or floating-point rounding when converting the amount to micro-USDC. Always use the amount from the 402 response and Math.round(amount * 1_000_000).

What are the free endpoints and rate limits of the MetEngine API?▼

GET /health and GET /api/v1/pricing are free and rate-limited to 60 requests per minute. All 63 paid endpoints have no rate limit since payment governs access, with per-request prices bounded between $0.01 and $0.20 USDC.

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