A2A Alpaca Trading API

import httpx

CF_CLIENT_ID     = "your-cf-client-id"       # from Developer Portal
CF_CLIENT_SECRET = "your-cf-client-secret"
ALPACA_API_KEY   = "your-alpaca-paper-key"
ALPACA_SECRET    = "your-alpaca-paper-secret"
ALPACA_ENDPOINT  = "https://paper-api.alpaca.markets/v2"

A2A_URL = "https://alpaca-a2a.tradevoicelab.com"

headers = {
    "CF-Access-Client-Id":     CF_CLIENT_ID,
    "CF-Access-Client-Secret": CF_CLIENT_SECRET,
    "Content-Type":            "application/json",
}

# Alpaca credentials passed per-request in metadata
def alpaca_meta():
    return {
        "alpaca_api_key":    ALPACA_API_KEY,
        "alpaca_api_secret": ALPACA_SECRET,
        "alpaca_endpoint":   ALPACA_ENDPOINT,
    }

# 1. Get account info
r = httpx.post(f"{A2A_URL}/a2a/alpaca", headers=headers, json={
    "jsonrpc": "2.0", "id": "1", "method": "tasks/send",
    "params": {
        "id": "t1",
        "message": {"role": "user", "parts": [{"type": "text",
            "text": "Show my account balance and buying power"}]},
        "metadata": alpaca_meta()
    }
}, timeout=30)
print(r.json()["result"]["status"]["message"]["parts"][0]["text"])

# 2. Place a paper market order
r = httpx.post(f"{A2A_URL}/a2a/alpaca", headers=headers, json={
    "jsonrpc": "2.0", "id": "2", "method": "tasks/send",
    "params": {
        "id": "t2",
        "message": {"role": "user", "parts": [{"type": "text",
            "text": "Buy 1 share of AAPL at market price"}]},
        "metadata": alpaca_meta()
    }
}, timeout=30)
print(r.json()["result"]["status"]["message"]["parts"][0]["text"])