Chart GeneratorChart Generator API

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Chart Generator creates beautiful chart images from your data. Supports bar, line, pie, doughnut, radar, and polar area charts with customizable styling.

The Chart Generator API provides reliable and fast access to chart generator data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.

To use Chart Generator, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

URL
https://api.apiverve.com/v1/chartgenerator

Code Examples

Here are examples of how to call the Chart Generator API in different programming languages:

cURL Request
curl -X POST \
  "https://api.apiverve.com/v1/chartgenerator" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "type": "bar",
  "labels": [
    "Q1",
    "Q2",
    "Q3",
    "Q4"
  ],
  "datasets": [
    {
      "name": "Sales",
      "values": [
        50,
        60,
        70,
        180
      ]
    },
    {
      "name": "Revenue",
      "values": [
        100,
        200,
        300,
        400
      ]
    }
  ],
  "title": "Quarterly Report"
}'
JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/chartgenerator', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "type": "bar",
    "labels": [
        "Q1",
        "Q2",
        "Q3",
        "Q4"
    ],
    "datasets": [
        {
            "name": "Sales",
            "values": [
                50,
                60,
                70,
                180
            ]
        },
        {
            "name": "Revenue",
            "values": [
                100,
                200,
                300,
                400
            ]
        }
    ],
    "title": "Quarterly Report"
})
});

const data = await response.json();
console.log(data);
Python (Requests)
import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

payload = {
    "type": "bar",
    "labels": [
        "Q1",
        "Q2",
        "Q3",
        "Q4"
    ],
    "datasets": [
        {
            "name": "Sales",
            "values": [
                50,
                60,
                70,
                180
            ]
        },
        {
            "name": "Revenue",
            "values": [
                100,
                200,
                300,
                400
            ]
        }
    ],
    "title": "Quarterly Report"
}

response = requests.post('https://api.apiverve.com/v1/chartgenerator', headers=headers, json=payload)

data = response.json()
print(data)
Node.js (Native HTTPS)
const https = require('https');
const url = require('url');

const options = {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
};

const postData = JSON.stringify({
  "type": "bar",
  "labels": [
    "Q1",
    "Q2",
    "Q3",
    "Q4"
  ],
  "datasets": [
    {
      "name": "Sales",
      "values": [
        50,
        60,
        70,
        180
      ]
    },
    {
      "name": "Revenue",
      "values": [
        100,
        200,
        300,
        400
      ]
    }
  ],
  "title": "Quarterly Report"
});

const req = https.request('https://api.apiverve.com/v1/chartgenerator', options, (res) => {
  let data = '';
  res.on('data', (chunk) => data += chunk);
  res.on('end', () => console.log(JSON.parse(data)));
});

req.write(postData);
req.end();
PHP (cURL)
<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/chartgenerator');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-API-Key: your_api_key_here',
    'Content-Type: application/json'
]);

curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode({
    'type': 'bar',
    'labels': [
        'Q1',
        'Q2',
        'Q3',
        'Q4'
    ],
    'datasets': [
        {
            'name': 'Sales',
            'values': [
                50,
                60,
                70,
                180
            ]
        },
        {
            'name': 'Revenue',
            'values': [
                100,
                200,
                300,
                400
            ]
        }
    ],
    'title': 'Quarterly Report'
}));

$response = curl_exec($ch);
curl_close($ch);

$data = json_decode($response, true);
print_r($data);

?>
Go (net/http)
package main

import (
    "fmt"
    "io"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    payload := map[string]interface{}{
        "type": "bar",
        "labels": "Q1,Q2,Q3,Q4",
        "datasets": "[object Object],[object Object]",
        "title": "Quarterly Report"
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/chartgenerator", bytes.NewBuffer(jsonPayload))

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}
Ruby (Net::HTTP)
require 'net/http'
require 'json'

uri = URI('https://api.apiverve.com/v1/chartgenerator')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

payload = {
  "type": "bar",
  "labels": [
    "Q1",
    "Q2",
    "Q3",
    "Q4"
  ],
  "datasets": [
    {
      "name": "Sales",
      "values": [
        50,
        60,
        70,
        180
      ]
    },
    {
      "name": "Revenue",
      "values": [
        100,
        200,
        300,
        400
      ]
    }
  ],
  "title": "Quarterly Report"
}

request = Net::HTTP::Post.new(uri)
request['X-API-Key'] = 'your_api_key_here'
request['Content-Type'] = 'application/json'

request.body = payload.to_json

response = http.request(request)
puts JSON.pretty_generate(JSON.parse(response.body))
C# (HttpClient)
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("X-API-Key", "your_api_key_here");

        var jsonContent = @"{
        ""type"": ""bar"",
        ""labels"": [
                ""Q1"",
                ""Q2"",
                ""Q3"",
                ""Q4""
        ],
        ""datasets"": [
                {
                        ""name"": ""Sales"",
                        ""values"": [
                                50,
                                60,
                                70,
                                180
                        ]
                },
                {
                        ""name"": ""Revenue"",
                        ""values"": [
                                100,
                                200,
                                300,
                                400
                        ]
                }
        ],
        ""title"": ""Quarterly Report""
}";
        var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");

        var response = await client.PostAsync("https://api.apiverve.com/v1/chartgenerator", content);
        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        Console.WriteLine(responseBody);
    }
}

Authentication

The Chart Generator API requires authentication via API key. Include your API key in the request header:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Chart Generator API directly in your browser with live requests and responses.

Parameters

The Chart Generator API supports multiple query options. Use one of the following:

Some Chart Generator parameters marked with Premium are available exclusively on paid plans.View pricing

Option 1: Basic Chart

ParameterTypeRequiredDescriptionDefaultExample
typestringoptional
Chart type
Supported values: barlinepiedoughnutradar
barbar
labelsarrayrequired
Array of labels for the x-axis or chart segments
-["Q1", "Q2", "Q3", "Q4"]
datasetsarrayrequired
Array of datasets with 'name' and 'values'
-[{"name": "Sales", "values": [10, 20, 30, 40]}]
titlestringoptional
Optional title displayed on the chart
-Quarterly Report
widthPremiumintegeroptional
Image width in pixels
Range: 100 - 1024
500500
heightPremiumintegeroptional
Image height in pixels
Range: 100 - 1024
300300
formatPremiumstringoptional
Output format
Supported values: pngjpegsvg
pngpng

Option 2: Advanced Chart

ParameterTypeRequiredDescriptionDefaultExample
typestringoptional
Chart type
Supported values: barlinepiedoughnutradar
barline
labelsarrayrequired
Array of labels for the x-axis or chart segments
-["Jan", "Feb", "Mar", "Apr", "May"]
datasetsarrayrequired
Array of datasets with 'name', 'values', plus any Chart.js properties (fill, tension, borderWidth, pointRadius, backgroundColor, etc.)
-[{"name": "Revenue", "values": [65, 59, 80, 81, 56], "fill": true, "tension": 0.4, "borderWidth": 2}]
titlestringoptional
Optional title displayed on the chart
-Monthly Revenue
optionsobjectoptional
Chart.js compatible options for scales, legend, and more
-{"scales": {"y": {"beginAtZero": true}}}
widthPremiumintegeroptional
Image width in pixels
Range: 100 - 1024
500500
heightPremiumintegeroptional
Image height in pixels
Range: 100 - 1024
300300
formatPremiumstringoptional
Output format
Supported values: pngjpegsvg
pngpng

Response

The Chart Generator API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

JSON Response
200 OK
{
  "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"
  }
}
XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <id>6a783c9c-f959-4a88-80cb-84580b8c788d</id>
    <format>.png</format>
    <expires>1766010059346</expires>
    <type>bar</type>
    <downloadURL>https://storage.googleapis.com/apiverve/APIData/chartgenerator/6a783c9c-f959-4a88-80cb-84580b8c788d.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&amp;Expires=1766010059&amp;Signature=Iud%2B7hoPRtPbWoJXQAAnhN9nqUHObHQ7PaiJCtkWQzEzpMexPMRR3BIPKkwOUMAwT6YcNbvywgnLvU2SV7498rbp%2FZbktuAR3Ok1E3O6p4ZJJ4s%2FpW8HAZgIBJpDlPUQt%2FjulQLtwP2I2GUPVmgWheXitnWsWq1S3E2k4viysXwS8H2%2B8BBdxjS%2Bv1ruGXbqd4RpdzdLst4e9YtHGWNZuiaL8zX8%2FHA1zreyrewY2fpB4g0pHnh%2B3IDE48eIohb4HQoDc9vXy4s8sIoqLScmTLyxyq1pPYlak1n1PWdbLcz4TBr41JnLELzF%2BBwCkyrLts9dhisSseaIB7d4g4JQnw%3D%3D</downloadURL>
  </data>
</response>
YAML Response
200 OK
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
CSV Response
200 OK
keyvalue
id6a783c9c-f959-4a88-80cb-84580b8c788d
format.png
expires1766010059346
typebar
downloadURLhttps://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

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

FieldTypeSample ValueDescription
idstring"6a783c9c-f959-4a88-80cb-84580b8c788d"Unique identifier for the generated chart
formatstring".png"File format of the generated chart image
expiresnumber1766010059346Unix timestamp when the chart URL expires
typestring"bar"Type of chart that was generated
downloadURLstring"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"Temporary URL to download the generated chart

Headers

Required and optional headers for Chart Generator API requests:

Header NameRequiredExample ValueDescription
X-API-Keyrequiredyour_api_key_hereYour APIVerve API key. Found in your dashboard under API Keys.
Acceptoptionalapplication/jsonSpecify response format: application/json (default), application/xml, or application/yaml
User-AgentoptionalMyApp/1.0Identifies your application for analytics and debugging purposes
X-Request-IDoptionalreq_123456789Custom request identifier for tracking and debugging requests
Cache-Controloptionalno-cacheControl caching behavior for the request and response

Learn more about request headers →

GraphQL AccessALPHA

Access Chart Generator through GraphQL to combine it with other API calls in a single request. Query only the chart generator data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Chart Generator in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  chartgenerator(
    input: {
      type: "bar"
      labels: ["Q1","Q2","Q3","Q4"]
      datasets: [{"name":"Sales","values":[50,60,70,180]},{"name":"Revenue","values":[100,200,300,400]}]
      title: "Quarterly Report"
    }
  ) {
    id
    format
    expires
    type
    downloadURL
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Chart Generator API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Chart Generator directly from browser-based applications without proxy servers.

CORS HeaderValueDescription
Access-Control-Allow-Origin*Accepts requests from any origin
Access-Control-Allow-Methods*Accepts any HTTP method
Access-Control-Allow-Headers*Accepts any request headers

Browser Usage: You can call Chart Generator directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.

Learn more about CORS support →

Rate Limiting

Chart Generator API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Chart Generator users.

PlanRate LimitDescription
Free5 requests/minHard rate limit enforced - exceeding will return 429 errors
StarterNo LimitProduction ready - standard traffic priority
ProNo LimitProduction ready - preferred traffic priority
MegaNo LimitProduction ready - highest traffic priority

Learn more about rate limiting →

Rate Limit Headers

When rate limits apply, each Chart Generator response includes headers to help you track your usage:

HeaderDescription
X-RateLimit-LimitMaximum number of requests allowed per time window
X-RateLimit-RemainingNumber of requests remaining in the current window
X-RateLimit-ResetUnix timestamp when the rate limit window resets

Handling Rate Limits

Free Plan: When you exceed your rate limit, Chart Generator returns a 429 Too Many Requests status code. Your application should implement appropriate backoff logic to handle this gracefully.

Paid Plans: No rate limiting or throttling applied. All paid plans (Starter, Pro, Mega) are production-ready.

Best Practices for Chart Generator:

  • Monitor the rate limit headers to track your Chart Generator usage (Free plan only)
  • Cache chart generator responses where appropriate to reduce API calls
  • Upgrade to Pro or Mega for guaranteed no-throttle Chart Generator performance

Note: Chart Generator rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Chart Generator on Free tier.

Error Codes

The Chart Generator API uses standard HTTP status codes to indicate success or failure:

CodeMessageDescriptionSolution
200OKRequest successful, data returnedNo action needed - request was successful
400Bad RequestInvalid request parameters or malformed requestCheck required parameters and ensure values match expected formats
401UnauthorizedMissing or invalid API keyInclude x-api-key header with valid API key from dashboard
403ForbiddenAPI key lacks permission or insufficient creditsCheck credit balance in dashboard or upgrade plan
429Too Many RequestsRate limit exceeded (Free: 5 req/min)Implement request throttling or upgrade to paid plan
500Internal Server ErrorServer error occurredRetry request after a few seconds, contact support if persists
503Service UnavailableAPI temporarily unavailableWait and retry, check status page for maintenance updates

Learn more about error handling →

Need help? Contact support with your X-Request-ID for assistance.

Integrate Chart Generator with SDKs

Get started quickly with official Chart Generator SDKs for your preferred language. Each library handles authentication, request formatting, and error handling automatically.

Available for Node.js, Python, C#/.NET, and Android/Java. All SDKs are open source and regularly updated.

Integrate Chart Generator with No-Code API Tools

Connect the Chart Generator API to your favorite automation platform without writing code. Build workflows that leverage chart generator data across thousands of apps.

All platforms use your same API key to access Chart Generator. Visit our integrations hub for step-by-step setup guides.

Frequently Asked Questions

How do I get an API key for Chart Generator?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Chart Generator and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Chart Generator cost?

Each successful Chart Generator API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful chart generator lookups.

Can I use Chart Generator in production?

The free plan is for testing and development only. For production use of Chart Generator, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Chart Generator from a browser?
Yes! The Chart Generator API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Chart Generator credit limit?

When you reach your monthly credit limit, Chart Generator API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

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