Question: I need a solution that automates the process of converting product usage data into invoices for Stripe.

If you're looking for a way to automate the conversion of product usage data into Stripe invoices, Metering.ai is one of the tools you might find useful. It converts product usage data into Stripe invoices, freeing up humans from manual labor and reducing billing errors. It can handle data in a variety of formats, including CSV, and can perform complex calculations and array manipulation, so it's a good fit for companies with usage-based pricing.

Another choice is n8n, a more powerful workflow automation tool with more than 400 integrations, including Stripe. It's geared more toward technical teams, but its advanced features and flexibility make it a good choice for automating many business processes, including the integration of product usage data with Stripe invoices.

If you're looking for something more general purpose, you might want to look at Relay, which offers a rich integration with a wide range of tools and also includes advanced workflow tools to customize your automation. Relay's human-in-the-loop steps are designed to help collaboration, so you can use it to help people in your organization manage and approve data in your workflows, which could be useful for teams that handle product usage data and invoicing.