Chart-OutputChart-OutputDashboard

Quick Start

Get a chart rendered in under 2 minutes with cURL, Node.js, or Python.

1. Get an API Key

Sign up at Chart-Output, then create an API key from the API Keys page. Use pk_test_... for development.

2. Render Your First Chart

cURL

curl -X POST https://chart-output.com/api/v1/render \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "line",
    "data": {
      "labels": ["Jan", "Feb", "Mar"],
      "datasets": [{"label": "Revenue", "data": [12000, 15000, 18000]}]
    }
  }' --output chart.png

Node.js

npm install @chart-output/node
import { ChartOutput } from '@chart-output/node';
import fs from 'fs';

const client = new ChartOutput({ apiKey: 'YOUR_API_KEY' });
const buffer = await client.render({
  type: 'line',
  data: {
    labels: ['Jan', 'Feb', 'Mar'],
    datasets: [{ label: 'Revenue', data: [12000, 15000, 18000] }],
  },
});
fs.writeFileSync('chart.png', buffer);

Python

pip install chart-output
from chart_output import ChartOutput

client = ChartOutput(api_key="YOUR_API_KEY")
buf = client.render(
    type="line",
    data={
        "labels": ["Jan", "Feb", "Mar"],
        "datasets": [{"label": "Revenue", "data": [12000, 15000, 18000]}],
    },
)
with open("chart.png", "wb") as f:
    f.write(buf)

3. Use a Template

Skip the spec and use a pre-built template like mrr-trend or funnel-conversion:

# Node.js
const buf = await client.renderTemplate('mrr-trend', {
  data: [12000, 15000, 18000, 22000, 25000],
});

# Python
buf = client.render_template("mrr-trend", data=[12000, 15000, 18000, 22000, 25000])

Next Steps