Generate Beautiful Charts via API

Chart Generator API.

Generate chart images from your data. Supports bar, line, pie, doughnut, radar, and polar area charts with customizable dimensions and formats.

Get your free API key Read the docs

Free tier, no card< 200ms responses99.9% uptime SLA

GET/v1/chartgeneratorlive

query

Response200 OK · sample

{
  "status": "ok",
  "error": null,
  "data": {
    "id": "6a783c9c-f959-4a88-80cb-84580b8c788d",
    "format": ".png",
    "expires": 1766010059346,
    "type": "bar",
    "downloadURL": "https://storage.googleapis.com/apiverve/APIData/chartgenerator/6a783c9c-f959-4a88-80cb-84580b8c788d.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010059&Signature=Iud%2B7hoPRtPbWoJXQAAnhN9nqUHObHQ7PaiJCtkWQzEzpMexPMRR3BIPKkwOUMAwT6YcNbvywgnLvU2SV7498rbp%2FZbktuAR3Ok1E3O6p4ZJJ4s%2FpW8HAZgIBJpDlPUQt%2FjulQLtwP2I2GUPVmgWheXitnWsWq1S3E2k4viysXwS8H2%2B8BBdxjS%2Bv1ruGXbqd4RpdzdLst4e9YtHGWNZuiaL8zX8%2FHA1zreyrewY2fpB4g0pHnh%2B3IDE48eIohb4HQoDc9vXy4s8sIoqLScmTLyxyq1pPYlak1n1PWdbLcz4TBr41JnLELzF%2BBwCkyrLts9dhisSseaIB7d4g4JQnw%3D%3D"
  }
}

Sample response · verify to run one live call, no signup

How it works

Chart Generator API

Generate chart images from your data. Supports bar, line, pie, doughnut, radar, and polar area charts with customizable dimensions and formats.

6 chart types: bar, line, pie, doughnut, radar, polar
Multiple datasets for comparison charts
Auto-assigned colors, no design needed
PNG, JPEG, and SVG output formats

1
Send one request
A single authenticated GET with the location you care about — no SDK required.
```
GET /v1/chartgenerator?query=…
x-api-key: your_key
```
2
We do the aggregation
Each request pulls from multiple upstream sources and computes the derived fields for you.
3
Get clean JSON back
One structured object, typically under 200 ms — ready to render.
```
{ id, format, expires, … }
```

The response

Everything in a single call.

/v1/chartgeneratorapplication/json

id"6a783c9c-f959-4a88-80cb-84580b8c788d"

format".png"

expires1766010059346

type"bar"

downloadURL"https://storage.googleapis.com/apiverve/APIData/chartgene…"

Use cases

What developers build with it.

Real applications shipping on this endpoint today — each with the numbers that made it worth wiring up.

See every use case

Automated Report Generation

Use our Chart Generator API to create charts programmatically. Feed your data, get back chart images ready for PDF reports, emails, or dashboards.

Generate charts in seconds, not hoursConsistent styling across all reportsIntegrate with any programming language

< 2 secondschart generation time

6 chart typessupported

Up to 1024pxresolution

Charts in Email Marketing

Generate chart images via API and embed them directly in emails. Works in every email client since it's just an image.

Works in all email clients (Gmail, Outlook, etc.)Dynamic data visualization in emailsPerfect for weekly reports and digests

100%email client compatibility

PNG/JPEGemail-safe formats

24 hoursimage availability

Slack & Discord Bot Visualizations

Generate chart images on-demand and share them in chat. Perfect for /commands that show metrics, reports, or analytics.

Share visualizations in any chat platformBuild /commands that return chartsWorks with Slack, Discord, Teams, etc.

Any platformthat supports images

On-demandchart generation

Simple APIeasy integration

Start coding

Call it in your language.

Copy a working request, or install a typed SDK. Same endpoint, same key.

const res = await fetch("https://api.apiverve.com/v1/chartgenerator", { method: "POST", headers: { "x-api-key": "YOUR_API_KEY" } });
const { data } = await res.json();
console.log(data);

Included in your key

One subscription, the whole generate beautiful charts via api stack.

Every related API ships with your key — no separate plans, no extra keys, one bill.

See pricing

8APIs in this bundle

99.9%uptime SLA

The bundle

chartgeneratorYou’re hereqrcodegenerator barcodegenerator htmltoimage markdowntoimage captchagenerator cardgenerator invoicegenerator

No code required

Wire it into the tools you already run.

Ready-made recipes for Zapier, Make, and n8n — trigger on an event, and the data lands where your team works.

Google Sheets

Generate charts from spreadsheet data

WhenRow updated or added

ThenRead data → generate chart → insert downloadURL

Slack

Share metric charts in Slack

WhenSlash command

ThenFetch data → generate chart → post image

Airtable

Create charts from Airtable views

WhenNew record created

ThenQuery records → generate chart → store downloadURL

Notion

Embed charts in Notion dashboards

WhenDatabase updated

ThenAggregate data → generate chart → update page

Salesforce

Generate opportunity pipeline charts

WhenOpportunity updated

ThenQuery pipeline data → generate chart → attach to report

GitHub

Chart issue trends in repositories

WhenScheduled weekly

ThenCount issues → generate line chart → post to issue

Browse all integrations

Learn

Understand the data behind the API.

Choosing the Right Chart Type

When to use bar charts vs line charts vs pie charts for your data.

Chart Design Best Practices

Design principles for clear, effective data visualizations.

Questions about the API

What chart types are supported?

We support 6 chart types: bar charts, line charts, pie charts, doughnut charts, radar charts, and polar area charts. Each type works with the same simple data format.

How do I format the data for the API?

Send a JSON object with "labels" (array of strings for x-axis), "datasets" (array of objects with "name" and "values"), and optionally "title", "width", "height", and "format". Example: {"type": "bar", "labels": ["Q1", "Q2"], "datasets": [{"name": "Sales", "values": [100, 200]}]}

Can I create charts with multiple datasets?

Yes! Add multiple objects to the "datasets" array. Each dataset gets a unique color automatically. This is perfect for comparison charts showing multiple series on the same graph.

What output formats are available?

Charts can be exported as PNG (default), JPEG, or SVG. PNG and JPEG are great for emails and reports. SVG is ideal for scalable graphics and web embedding.

How long are chart images available?

Generated chart images are available for download for 24 hours via the signed URL. After that, you'll need to regenerate the chart.

Can I customize chart dimensions?

Yes, use the "width" and "height" parameters to set custom dimensions up to 1024x1024 pixels. Default is 500x300 pixels.

Do I need to specify colors?

No! Colors are automatically assigned from a curated palette. Each dataset gets a unique, visually distinct color. This makes the API simple to use without design expertise.

How is this different from QuickChart?

Our API uses a simplified data format that's easier to work with. Instead of passing raw Chart.js configuration, you send a flat structure with "labels" and "datasets". No Chart.js knowledge required.

Can I add a title to my chart?

Yes, include the "title" parameter in your request and it will be displayed at the top of the chart.

What are the rate limits?

Rate limits depend on your plan. Free tier includes 1,000 API calls per month. Each chart generation costs 1 credit. Check our pricing page for details.