### Answer Based on the available sources, I don't have specific information about retrieving per-agent cost breakdowns or historical spending for a particular agent over a time period. What the sources do mention: - There is a Usage Dashboard that shows your daily call costs and costs by provider [(1) ]() - You can see your live concurrent call usage in the bottom-left corner of the dashboard - Invoices can be downloaded after you've paid the billing cycle in the billing tab [(2) ]() However, I couldn't find documentation on filtering costs by individual agent or pulling agent-specific spending for a custom date range like "last 30 days." Check out these potentially useful sources: - [AI Phone Agent Pricing | Retell AI]() - [Platform Changelogs | Retell AI]() You may want to reach out to Retell support directly for this feature request or to confirm if per-agent cost tracking is available: - Visit [Contact Sales]() - Visit [) Would you like me to try providing a general answer on how you might approach tracking this manually?

​ To learn more, see the sources I considered: [[1] Platform Changelogs | Retell AI](https://www.retellai.com/changelog) [[2] AI Phone Agent Pricing | Retell AI](https://www.retellai.com/pricing) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer Based on the available sources, I don't have information about a specific API endpoint for retrieving per-agent cost or usage data. The sources I have access to cover call creation, call management, and agent configuration APIs, but I couldn't find documentation for: - Fetching billing/cost data via API - Retrieving usage statistics per agent - Pulling historical spending for a specific time period Check out these potentially useful sources: - [Create Phone Call API]() - [Retell AI API References]() For billing and usage API capabilities, I'd recommend: - Visit [Contact Sales]() - Visit [) Would you like me to try providing a general answer on potential workarounds, or would you prefer to check with Retell support directly about billing API availability?

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Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.