feat: add 7 new providers, fix codegen for all edge cases

- Add Alpaca, Alpha Vantage, Polygon, Tushare, Twelvedata, OpenAI, Anthropic
- Add _post() method for JSON POST endpoints (AI providers)
- Fix Python keyword params: from→from_, to→to_, type→type_ etc.
- Fix sub-resource/method name collision (get_bars, get_time_series)
- Sub-resources: alphavantage.us, tushare.cn, twelvedata.indicator/metals/indices
- Update README with correct API surface for all 9 providers
- Update test_sdk.py to test all 9 providers with correct API calls

Author: tinkle-community

README.md

@@ -3,9 +3,9 @@
 [![PyPI version](https://img.shields.io/pypi/v/claw402.svg)](https://pypi.org/project/claw402/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
 
-Typed Python SDK for [claw402.ai](https://claw402.ai) — pay-per-call crypto data APIs via [x402](https://www.x402.org/) micropayments.
+Typed Python SDK for [claw402.ai](https://claw402.ai) — pay-per-call data APIs via [x402](https://www.x402.org/) micropayments.
 
-**96+ endpoints** covering fund flow, liquidations, ETF flows, AI trading signals, whale tracking, funding rates, open interest, and more. No API key, no signup, no subscription — just a Base wallet with USDC.
+**200+ endpoints** covering crypto market data, US stocks, China A-shares, forex, global time-series, and AI (OpenAI/Anthropic). No API key, no signup, no subscription — just a Base wallet with USDC.
 
 ## Install
 
@@ -20,31 +20,49 @@ from claw402 import Claw402
 
 client = Claw402(private_key="0xYourPrivateKey")
 
-# Fund flow — $0.001 per call
+# Crypto: Fund flow — $0.001/call
 flow = client.coinank.fund.realtime(product_type="SWAP")
 print(flow)
 
-# AI trading signals
-signals = client.nofxos.netflow.top_ranking(limit=20, duration="1h")
-print(signals)
+# US Stocks: Latest quote — $0.001/call
+quote = client.alpaca.quotes.latest(symbols="AAPL,TSLA")
+print(quote)
 
-# Fear & Greed Index
-sentiment = client.coinank.indicator.fear_greed()
-print(sentiment)
+# US Stocks: Market snapshot — $0.002/call
+snap = client.polygon.snapshot.all(tickers="AAPL")
+print(snap)
+
+# China A-shares — $0.001/call
+stocks = client.tushare.cn.stock_basic(list_status="L")
+print(stocks)
+
+# Forex time-series — $0.001/call
+ts = client.twelvedata.get_time_series(symbol="EUR/USD", interval="1h")
+print(ts)
+
+# AI: OpenAI chat — $0.01/call
+resp = client.openai.openai.chat({"messages": [{"role": "user", "content": "Hello"}]})
+print(resp)
+
+# AI: Anthropic Claude — $0.015/call
+resp = client.anthropic.anthropic.messages({"messages": [{"role": "user", "content": "Hello"}]})
+print(resp)
 ```
 
 ## Features
 
 - **Typed methods** — every endpoint has a dedicated Python method with keyword arguments
 - **Automatic x402 payment** — signs EIP-3009 USDC transfers locally, never sends your key
-- **Two resource groups** — `client.coinank.*` (market data) and `client.nofxos.*` (AI signals)
+- **9 provider groups** — crypto, US stocks, China stocks, forex, global data, and AI
 - **Context manager** — `with Claw402(...) as client:` for automatic cleanup
 - **Zero config** — just a private key, no API keys or registration
-- **Base mainnet** — pays $0.001 USDC per call on Coinbase L2
+- **Base mainnet** — pays USDC per call on Coinbase L2
 
 ## API Overview
 
-### Coinank (Market Data)
+### Crypto Market Data
+
+#### Coinank
 
 | Resource | Methods | Description |
 |----------|---------|-------------|
@@ -62,7 +80,7 @@ print(sentiment)
 | `coinank.rank` | `screener`, `oi`, `volume`, `price`, `liquidation`, ... | Rankings & screeners |
 | `coinank.news` | `list`, `detail` | Crypto news & alerts |
 
-### Nofxos (AI Signals)
+#### Nofxos (AI Signals)
 
 | Resource | Methods | Description |
 |----------|---------|-------------|
@@ -74,6 +92,160 @@ print(sentiment)
 | `nofxos.price` | `ranking` | Price change rankings |
 | `nofxos.upbit` | `hot`, `netflow_top_ranking`, `netflow_low_ranking` | Korean market data |
 
+### US Stock & Options Market
+
+#### Alpaca
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `alpaca.quotes` | `latest`, `history` | Real-time & historical quotes — $0.001–0.002/call |
+| `alpaca.bars` | `latest` | Latest OHLCV bar — $0.001/call |
+| `alpaca.trades` | `latest`, `history` | Real-time & historical trades — $0.001–0.002/call |
+| `alpaca.options` | `bars`, `quotes_latest`, `snapshots` | Options chain data — $0.003/call |
+| `alpaca` | `get_bars`, `snapshots`, `snapshot`, `movers`, `most_actives`, `news`, `corporate_actions` | Direct market endpoints — $0.001–0.002/call |
+
+```python
+# Latest quotes for multiple symbols
+q = client.alpaca.quotes.latest(symbols="AAPL,MSFT,TSLA")
+
+# Historical bars
+bars = client.alpaca.get_bars(symbols="AAPL", timeframe="1Day", start="2024-01-01")
+
+# Top market movers
+movers = client.alpaca.movers(top=10, market_type="stocks")
+
+# Options snapshots
+opts = client.alpaca.options.snapshots(symbols="AAPL240119C00150000")
+```
+
+#### Polygon
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `polygon.aggs` | `aggs`, `grouped_daily`, `daily_open_close`, `previous_close` | Aggregates / OHLCV bars — $0.001/call |
+| `polygon.snapshots` | `all_tickers`, `single_ticker`, `gainers_losers`, `universal_snapshot`, `options_chain` | Full market snapshots — $0.002/call |
+| `polygon.trades` | `trades`, `last_trade`, `quotes`, `last_quote` | Trade & quote tick data — $0.002/call |
+| `polygon` | `ticker_details`, `market_status`, `ticker_types`, `exchanges`, `conditions`, `sma`, `ema`, `rsi`, `macd` | Reference & technical indicators — $0.001–0.003/call |
+
+```python
+# OHLCV bars
+bars = client.polygon.aggs.aggs(
+    stocksTicker="AAPL", multiplier=1, timespan="day",
+    from_="2024-01-01", to="2024-12-31"
+)
+
+# RSI indicator
+rsi = client.polygon.rsi(stocksTicker="AAPL", timespan="day", window=14)
+
+# Options chain
+chain = client.polygon.snapshots.options_chain(underlyingAsset="AAPL")
+```
+
+#### Alpha Vantage
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `alphavantage.us` | `quote`, `search`, `daily`, `daily_adjusted`, `intraday`, `weekly`, `monthly`, `overview`, `earnings`, `income`, `balance_sheet`, `cash_flow`, `movers`, `news`, `rsi`, `macd`, `bbands`, `sma`, `ema` | Comprehensive financial data — $0.001–0.003/call |
+
+```python
+# Real-time quote
+quote = client.alphavantage.us.quote(symbol="AAPL")
+
+# Daily OHLCV
+daily = client.alphavantage.us.daily(symbol="AAPL", outputsize="compact")
+
+# Top movers (no params)
+movers = client.alphavantage.us.movers()
+
+# News sentiment
+news = client.alphavantage.us.news(tickers="AAPL")
+```
+
+### China A-Shares
+
+#### Tushare
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `tushare.cn` | `stock_basic`, `daily`, `weekly`, `monthly`, `daily_basic`, `trade_cal`, `income`, `balance_sheet`, `cash_flow`, `dividend`, `northbound`, `moneyflow`, `margin`, `margin_detail`, `top_list`, `top_inst` | China A-share market data — $0.001–0.003/call |
+
+```python
+# Stock list
+stocks = client.tushare.cn.stock_basic(list_status="L")
+
+# Daily OHLCV
+daily = client.tushare.cn.daily(ts_code="000001.SZ", start_date="20240101", end_date="20240131")
+
+# Money flow
+flow = client.tushare.cn.moneyflow(ts_code="000001.SZ", start_date="20240101")
+
+# Northbound capital
+north = client.tushare.cn.northbound(trade_date="20240101")
+```
+
+### Global Time-Series & Forex
+
+#### Twelve Data
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `twelvedata.time_series` | `complex` (POST) | Complex multi-symbol/indicator query — $0.005/call |
+| `twelvedata.indicator` | `sma`, `ema`, `rsi`, `macd`, `bbands`, `atr` | Technical indicators — $0.002/call |
+| `twelvedata.metals` | `price`, `time_series` | Precious metals prices — $0.001/call |
+| `twelvedata.indices` | `list_`, `quote` | Global index data — $0.001/call |
+| `twelvedata` | `get_time_series`, `price`, `quote`, `eod`, `exchange_rate`, `forex_pairs`, `economic_calendar` | Direct endpoints — $0.001/call |
+
+```python
+# Time series (use get_time_series, NOT time_series — time_series is the sub-resource)
+ts = client.twelvedata.get_time_series(symbol="EUR/USD", interval="1h", outputsize=3)
+
+# Technical indicators
+rsi = client.twelvedata.indicator.rsi(symbol="AAPL", interval="1day", time_period=14, outputsize=3)
+
+# Real-time price
+price = client.twelvedata.price(symbol="BTC/USD")
+
+# Metals
+gold = client.twelvedata.metals.price(symbol="XAU/USD")
+```
+
+### AI Providers
+
+#### OpenAI
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `openai.openai` | `chat`, `chat_mini`, `embeddings`, `embeddings_large`, `images`, `models` | OpenAI API — $0.001–0.05/call |
+
+```python
+# Chat (GPT-4o)
+resp = client.openai.openai.chat({
+    "model": "gpt-4o",
+    "messages": [{"role": "user", "content": "Analyze AAPL stock trend"}]
+})
+
+# Embeddings
+emb = client.openai.openai.embeddings({
+    "input": "crypto market sentiment",
+    "model": "text-embedding-3-small"
+})
+```
+
+#### Anthropic
+
+| Resource | Methods | Description |
+|----------|---------|-------------|
+| `anthropic.anthropic` | `messages`, `messages_extended`, `count_tokens` | Anthropic Claude API — $0.01–0.015/call |
+
+```python
+# Claude messages
+resp = client.anthropic.anthropic.messages({
+    "model": "claude-opus-4-6",
+    "max_tokens": 1024,
+    "messages": [{"role": "user", "content": "Summarize this earnings report: ..."}]
+})
+```
+
 ## Configuration
 
 ```python
@@ -86,7 +258,7 @@ client = Claw402(
 
 ## How Payment Works
 
-1. SDK sends a GET request to the endpoint
+1. SDK sends a GET/POST request to the endpoint
 2. Server responds with `402 Payment Required` + payment details in header
 3. SDK signs an EIP-3009 `TransferWithAuthorization` for USDC on Base
 4. SDK retries the request with the `PAYMENT-SIGNATURE` header