# Vectorial Data > AI-native stock picking service. Daily researched stock picks with a verifiable, hash-chained track record. Built for autonomous portfolio agents. ## What We Do We research global stocks across all sectors and regions, publish daily picks with full fundamental analysis, and track portfolio performance transparently. Every pick is cryptographically verifiable via a SHA-256 hash chain committed to git. ## API Base URL: https://vectorialdata.com/api/v1 Auth: Bearer token (API key) Register (free): POST /api/v1/auth/register OpenAPI spec: https://vectorialdata.com/openapi.yaml Full docs: https://vectorialdata.com/llms-full.txt ## Key Endpoints - GET /api/v1/info — Service discovery (no auth needed) - GET /api/v1/picks — Stock picks with returns - GET /api/v1/research/{ticker} — Full fundamental research - GET /api/v1/portfolio — Portfolio performance summary - GET /api/v1/portfolio/positions — All positions with live returns - GET /api/v1/stocks — All researched stocks - GET /api/v1/verify/picks — Verifiable pick history (hash chain) ## Pricing - Free: 10 requests/day, latest 3 picks, portfolio summary, basic stock list - Pro: 1000 requests/day, all picks, full research, historical data — 5 USDC/month on Base L2 - x402: Pay-per-request, no API key needed — USDC on Base ## Payment ### Subscription Send 5 USDC to our wallet on Base L2, then POST /api/v1/payments/verify with the tx_hash. ### x402 Pay-Per-Request (for AI agents) No registration needed. Just call any /api/v1/x402/* endpoint. You'll get an HTTP 402 with payment instructions. Pay USDC on Base, retry with proof. Pro-tier data, per request. x402 info: GET /api/v1/x402/info x402 endpoints: - GET /api/v1/x402/picks ($0.005) - GET /api/v1/x402/picks/latest ($0.001) - GET /api/v1/x402/research/{ticker} ($0.01) - GET /api/v1/x402/portfolio ($0.002) - GET /api/v1/x402/portfolio/positions ($0.003) - GET /api/v1/x402/portfolio/history ($0.005) - GET /api/v1/x402/sectors ($0.001) - GET /api/v1/x402/regions ($0.001) - GET /api/v1/x402/stocks ($0.005) ## MCP Server Install: npx @vectorialdata/mcp-server Env: VD_API_KEY=your_key ## Links - Website: https://vectorialdata.com - API Docs: https://vectorialdata.com/developers - GitHub: https://github.com/arcanequants/stock-picking