# Windy Network > Real-time crypto and fiat currency market data API. Aggregated rates across > 25+ exchanges, 24/7 gap-free Forex (Fiat247), institutional reference rates, > DEX prices, OHLC candles, and technical indicators — delivered via REST, > WebSocket, FIX, and MCP. - Production REST: `https://api.windy.network` - WebSocket / SSE: `https://ws.windy.network` - Open (unauthenticated) server: `https://openserver.windy.network` - Authentication: `X-API-Key: ` (simple) or `Authorization: Bearer ` - Content type: `application/json` - Rate limits: per-plan (Free 100 req/min, Basic 1k, Pro 10k); response headers expose usage ## Docs - [Quickstart](https://docs.windy.network/getting-started/quickstart): get an API key and make your first call - [API Reference](https://docs.windy.network/api-reference): interactive OpenAPI explorer - [JavaScript SDK](https://docs.windy.network/sdk/javascript): typed client + examples - [OpenAPI spec](https://docs.windy.network/openapi.yaml): full machine-readable schema (YAML) - [Full reference in flat Markdown](https://docs.windy.network/llms-full.txt): every endpoint + schema, AI-optimized ## Asset domains covered - **Crypto** — rates, tickers, OHLC, order book, trades, market overview (gainers/losers/volume), reference rates - **DEX** — on-chain pool pricing across EVM chains - **Fiat 24/7** — derived FX rates that run gap-free through weekends (uses crypto markets) - **Forex** — market-hours FX rates, OHLC, technical indicators (SMA, EMA, RSI, MACD, …) - **Stocks & Options** — equity tickers, OHLC, options chains (plan-dependent) ## Conventions - Pair format: `BASE-TERM` (e.g., `BTC-USDT`, `GBP-USD`). Uppercase, hyphen separator. - Timestamps: ISO 8601 UTC, millisecond precision. - Numeric prices: strings to preserve precision (`"67432.15"`). - Errors: standard HTTP status + `{ error: { code, message } }` body. ## Materials for AI coding tools - [CLAUDE.md template](https://docs.windy.network/CLAUDE.md) — paste into your project root - [Claude Code Skill](https://github.com/windy-network/claude-skill) — install via `/plugin` - MCP server install: see [Vibe Coding](https://windy.network/vibe-coding) for install commands per tool - [llms-full.txt](https://docs.windy.network/llms-full.txt) — full reference in AI-optimized markdown ## Optional - [Status page](https://status.windy.network): incident history and uptime - [Blog](https://windy.network/blog): changelog, guides, case studies