RouterBase Prompt Runner

RouterBase provides an OpenAI-compatible API for routing prompts to many AI models. This package adds a tiny CLI for running one prompt string or a prompt file through RouterBase.

Install

npm install -g routerbase-prompt-runner

Or run without installing:

npx routerbase-prompt-runner --prompt "Write a short tagline for RouterBase"

Usage

export ROUTERBASE_API_KEY="sk-rb-..."

routerbase-run --prompt "Summarize RouterBase in one sentence"
routerbase-run --file prompt.md
routerbase-run --model google/gemini-2.5-flash --prompt "Give me 3 launch ideas"
routerbase-run --json --prompt "Return a tiny JSON object"

Options:

• --prompt <text>: Prompt text.
• --file <path>: Read prompt text from a file.
• --model <id>: Defaults to google/gemini-2.5-flash.
• --api-key <key>: RouterBase API key. Defaults to ROUTERBASE_API_KEY.
• --base-url <url>: Defaults to https://routerbase.com/v1.
• --json: Print the full JSON response.

JavaScript

import { runRouterBasePrompt } from "routerbase-prompt-runner";

const result = await runRouterBasePrompt({
  apiKey: process.env.ROUTERBASE_API_KEY,
  prompt: "Write a five-word product description.",
  model: "google/gemini-2.5-flash"
});

console.log(result.text);

Links

• RouterBase
• RouterBase docs
• Chat completions docs