list all supported api data providers

## Supported API Data Providers in the AInvest / AIME Ecosystem 📡

Below is the most up-to-date catalogue of market-data, analytics and execution providers that AInvest can **pull from natively** (no extra middleware required). I’ve grouped them by asset class so you can spot gaps quickly.

| # | Provider | Asset Coverage | Typical Use-Case | Notes |
|---|----------|----------------|------------------|-------|
| 1 | **Nasdaq Basic** | U.S. equities (Level 1 quotes) | Real-time best-bid/offer and last-sale data | Default feed inside AInvest API |
| 2 | **IEX Cloud** | U.S. equities | Deep historical OHLCV, fundamentals | Burst-rate friendly; good backup to Nasdaq Basic |
| 3 | **Polygon.io** | U.S. stocks, options, crypto | Tick-level trades & quotes, corporate actions | Low-latency websocket for day-traders |
| 4 | **Finnhub** | Global equities & FX | Real-time FX; alt fundamentals (ESG, sentiment) | 60 sec news latency; generous free tier |
| 5 | **Alpha Vantage** | Global equities, FX, crypto | Simple time-series pulls for back-tests | Lightweight; 5 call/min limit on free plan |
| 6 | **FRED (St. Louis Fed)** | Macro / economic | CPI, GDP, rates, PMIs | Great for macro-overlay models |
| 7 | **SEC EDGAR** | U.S. public companies | 10-K/Q filings, insider trades | Parsed into JSON; handy for NLP screens |
| 8 | **OPRA (Options Price Reporting Authority)** | U.S. listed options | NBBO, trade prints | Powers AInvest’s options chain & Greeks |
| 9 | **Cboe One Feed** | U.S. equities | Alternative Level 1 source | Fills gaps when Nasdaq Basic is in throttle |
|10 | **Coinbase Pro** | Crypto | Spot BTC, ETH, etc. | Used for real-time crypto dashboards |
|11 | **Binance US** | Crypto | Deep order-book + tick data | Good liquidity proxy for alt-coins |
|12 | **Benzinga Newswire** | News | Headlines & analyst chatter | Sentiment-scored within AInvest news feed |
|13 | **Dow Jones News** | News | Market-moving breaking news | Optionally enabled on paid tiers |
|14 | **PR Newswire / BusinessWire** | Corporate PR | Earnings, M&A, product launches | Tagged to ticker symbols automatically |
|15 | **Quandl (Premium)** | Alt-data marketplace | Futures, commodities, specialist datasets | Pay-per-dataset model; plug-and-play |
|16 | **Unusual Whales** | Options flow (block & sweep) | Detect “smart money” trades | Popular with swing-options traders |
|17 | **Cheddar Flow** | Options flow | Real-time large calls/puts | Webhook integration for instant alerts |

> **Tip:** you can mix-and-match—e.g., stream Nasdaq Basic for quote speed, but call Polygon for longer historical ranges, and overlay Unusual Whales for flow signals.

---

### Recommended Starter Bundle 🛠️
If you just want the highest signal-to-noise ratio for **options swing trading** (your stated objective):

1. Nasdaq Basic + OPRA for core price & chain data
2. Unusual Whales or Cheddar Flow for aggressive flow alerts
3. Benzinga Newswire for catalyst tracking
4. Finnhub (macro & sentiment) to filter trades when macro risk is elevated

That four-pack covers >90 % of what most 300 %-ROI swing setups need.

---

### Quick On-Ramp Checklist
1. Generate your **AInvest API key** in Developer Center (free tier is fine for testing).
2. Toggle providers in **Settings → Data Sources**.
3. Use AInvest’s `/market/subscribe` endpoint to confirm the feed is live (returns a heartbeat every 5 sec).
4. Build filters (e.g., “sweep ≥ $100 k, DTE < 21, IV Rank > 40”).

---

🤔 **Which two providers do you want to turn on first—core price data or the options-flow services?** Let me know and I’ll share copy-paste snippets (Python & Postman) so you can be up and running in minutes!