Goku

Goku is a high-performance, scalable HTTP load-testing tool designed for benchmarking and performance analysis of web services. Inspired by tools like Drill and Vegeta, Goku offers modern features and simplicity for engineers to simulate and analyze traffic efficiently.

Features

Fast and scalable HTTP load testing
Real-time live stats during long tests
Rate limiting (--rps) for constant-rate load profiles
Multi-step sequential scenarios (multiple endpoints per test)
Variable templating in URLs and bodies ({{uuid}}, {{seq}}, {{random_int}}, …)
Built-in authentication (Bearer token, Basic auth)
ASCII latency histogram in text output
compare subcommand to diff two benchmark runs
Output to file (--output-file) and per-request log (--results-log)
HTTP/1.1, HTTP/2 support
Multiple output formats: text, json, csv
MCP (Model Context Protocol) server for LLM/agent integration

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Install CLI

Automatic download (Linux, OSX, WSL)

curl -sSL https://raw.githubusercontent.com/jcaromiq/goku/v3.0.0/scripts/install.sh | sh

Using Cargo

cargo install goku-bench
goku --version

Manual download

Go to the Goku's GitHub Releases page and download the latest .tar.gz for your system:

Linux (x86_64, arm64)
macOS (x86_64)

• Windows (x86_64)

From source

cargo build --release

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MCP (Model Context Protocol) Support

Goku integrates with the Model Context Protocol (MCP) — use Goku programmatically from any LLM agent or MCP-aware client.

What this enables

- Use Goku from an LLM or AI agent — no manual CLI usage required.
- Combine load testing with automated workflows: trigger a test, gather metrics, and analyze results from within an agent or script.
- Seamless integration into broader toolchains and agentic pipelines.

Example usage with an LLM

Once Goku is registered as an MCP tool, you can ask your LLM:

> "Run a load test on https://api.example.com/users with 50 concurrent clients for 30 seconds using HTTP/2, and give me the p95 and p99 latency."

The LLM will call the run_benchmark MCP tool and return the full structured report.

Install MCP server

```bash