The Coinbase trading bot built for Python developers.

Automate trades on Coinbase Advanced Trade in pure Python. WatchDog Bot handles the API connection via CCXT, runs your bot in an isolated environment, streams logs live, and offers AI-powered debugging when things break. US-friendly. Free trial.

What you actually get

Strategies that work on Coinbase

A simple Coinbase bot in 15 lines

DCA bot — buys $25 of BTC every 24 hours, tracks cumulative average cost in a persistent state file.

import time, json
import wd
import ccxt

SYMBOL = "BTC/USD"
AMOUNT_USD = 25

conn = wd.connection("Coinbase")
ex = ccxt.coinbase({"apiKey": conn.api_key, "secret": conn.api_secret, "enableRateLimit": True})

state_file = wd.bot_dir() / "dca_state.json"
state = json.loads(state_file.read_text()) if state_file.exists() else {"spent": 0, "btc": 0.0}

while True:
    try:
        price = float(ex.fetch_ticker(SYMBOL)["last"])
        qty   = AMOUNT_USD / price
        wd.log.info("Buying $%d → %.6f BTC at $%.2f", AMOUNT_USD, qty, price)

        if not wd.is_demo():
            ex.create_market_buy_order(SYMBOL, qty)

        state["spent"] += AMOUNT_USD
        state["btc"]   += qty
        wd.log.info("Lifetime: $%.2f → %.6f BTC (avg $%.2f)",
                    state["spent"], state["btc"], state["spent"]/state["btc"])
        state_file.write_text(json.dumps(state))
    except Exception as e:
        wd.log.error("DCA buy failed: %s", e)

    time.sleep(24 * 3600)

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