---
title: "Flow logs API"
description: "Reference for the Goldmane flow logs API in Calico Open Source. Retrieve aggregated traffic data, policy hits, and packet and byte counts over gRPC."
product: "Calico Open Source"
version: "3.32 (latest)"
section: "Observability"
canonical_url: "https://docs.tigera.io/calico/latest/observability/flow-logs-api"
---

# Flow logs API

> **SECONDARY:** This feature is tech preview. Tech preview features may be subject to significant changes before they become GA.

The flow logs API (also known as Goldmane) is a gRPC API that powers the Calico Whisker web console. You can use this API to retrieve aggregated network traffic data, which includes policy enforcement details and statistics like packet and byte counts.

For a complete description of the API, including its available endpoints and function definitions, please refer to the specifications outlined in this PROTO file: [https://github.com/projectcalico/calico/blob/master/goldmane/proto/api.proto](https://github.com/projectcalico/calico/blob/master/goldmane/proto/api.proto).

## Additional resources

- Exploring the [Goldmane API for custom Kubernetes Network Observability blog](https://www.tigera.io/blog/calico-open-source-3-30-exploring-the-goldmane-api-for-custom-kubernetes-network-observability/).
- Click here to try [Goldmane integration in your browser right now!](https://play.instruqt.com/tigera/invite/wlzsrwx2qlus)
- Watch [this video presentation to learn about Calico APIs and how to integrate with Goldmane](https://youtu.be/OA20R5JQnw8?list=PLoWxE_5hnZUZHemmSMnu_oUzF_xWi69zj\&t=419).