Upstox Market Data MCP Server

A small MCP server that gives ChatGPT (or Claude) live access to Upstox option chain / OI data, market quotes, and option contracts — read-only, using your Upstox Analytics Token.

Tools exposed

• get_option_chain — raw option chain (OI, volume, LTP, IV per strike)
• get_option_chain_analysis — computed PCR, max-pain strike, support/resistance from OI, strikes near spot
• get_option_contracts — list contracts/expiries for an underlying
• get_market_quote — live LTP/OHLC/volume for one or more instrument keys

1. Get your credentials

1. In Upstox → Apps → My Apps → Analytics tab → Generate Token. Copy it. (This is your UPSTOX_ANALYTICS_TOKEN — valid 1 year, read-only, no daily re-login.)
2. Invent a password for MCP_SHARED_SECRET — anything long and random. This is NOT your Upstox token; it's a separate secret that protects this server from strangers on the internet, since it will be running on a public URL.

2. Deploy (Render, free tier)

1. Push this folder to a GitHub repo (or use Render's "Deploy from folder" if available).
2. On render.com → New → Web Service → connect your repo.
3. Runtime: Node. Build command: npm install. Start command: npm start.
4. Under Environment, add:
   • UPSTOX_ANALYTICS_TOKEN = (your token from step 1)
   • MCP_SHARED_SECRET = (your invented password from step 1)
5. Deploy. Render will give you a URL like https://your-app-name.onrender.com.
6. Your MCP endpoint is: https://your-app-name.onrender.com/mcp

3. Connect it in ChatGPT

1. Settings → Apps (or Plugins) → MCPs → Add server.
2. Type: Streamable HTTP.
3. URL: https://your-app-name.onrender.com/mcp
4. Under headers (or "Bearer token"), set: Authorization: Bearer <your MCP_SHARED_SECRET> (some ChatGPT UIs have a dedicated "Bearer token" field — put the secret there instead)
5. Save. It should scan and list the 4 tools above.

Notes

• This uses your Analytics Token, which is read-only — it cannot place, modify, or cancel orders.
• Free Render tiers spin down when idle; the first call after inactivity may take ~30-60s to wake up.
• PCR, max-pain, and OI buildup are positioning heuristics, not statistical probabilities — treat them as one input alongside your existing indicators (EMA/VWAP/SuperTrend/RSI etc.), not a standalone signal.