How much does it actually cost to run automated workflows?

Platform subscription costs
Most automation platforms charge monthly based on task volume or "operations." A basic plan handles a few hundred tasks monthly. Heavy usage moves you to mid or enterprise tiers. Read the pricing page for your specific tool.
API call costs
Some services charge per API call made through your workflows. If your automation runs 10,000 times monthly and each run makes 3 API calls, you've made 30,000 calls. Check if that service charges per call and at what volume discounts kick in.
Hidden throughput expenses
Data transfer between services sometimes costs extra. Some platforms charge for storage of logs or historical data. Database services charge for read/write operations.
Calculate your actual spend
List every service in your workflow. Check each pricing page for per-call or per-operation costs. Multiply by your expected monthly volume. Add the platform base fee. Most small automations cost under $50/month total; complex multi-step flows with high volume can reach hundreds.
Start small and monitor actual usage for a month before scaling. Most platforms show cost forecasts in dashboards.