Chart Generator API
Overview
To use Chart Generator, you need an API key. You can get one by creating a free account and visiting your dashboard.
POST Endpoint
https://api.apiverve.com/v1/chartgeneratorExample
How to call the Chart Generator API in different programming languages.
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"
}'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);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)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))
}{
"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"
}
}Authentication
The Chart Generator API requires authentication via API key. Include your API key in the request header:
X-API-Key: your_api_key_hereInteractive 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:
Option 1: Basic Chart
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
type | string | optional | Chart type Supported values: barlinepiedoughnutradar | ||
labels | array | required | Array of labels for the x-axis or chart segments | - | |
datasets | array | required | Array of datasets with 'name' and 'values' | - | |
title | string | optional | Optional title displayed on the chart | - | |
widthPremium | integer | optional | Image width in pixels Range: 100 - 1024 | ||
heightPremium | integer | optional | Image height in pixels Range: 100 - 1024 | ||
formatPremium | string | optional | Output format Supported values: pngjpegsvg |
Option 2: Advanced Chart
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
type | string | optional | Chart type Supported values: barlinepiedoughnutradar | ||
labels | array | required | Array of labels for the x-axis or chart segments | - | |
datasets | array | required | Array of datasets with 'name', 'values', plus any Chart.js properties (fill, tension, borderWidth, pointRadius, backgroundColor, etc.) | - | |
title | string | optional | Optional title displayed on the chart | - | |
options | object | optional | Chart.js compatible options for scales, legend, and more | - | |
widthPremium | integer | optional | Image width in pixels Range: 100 - 1024 | ||
heightPremium | integer | optional | Image height in pixels Range: 100 - 1024 | ||
formatPremium | string | optional | Output format Supported values: pngjpegsvg |
Response
The Chart Generator API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.
Other Response Formats
<?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&Expires=1766010059&Signature=Iud%2B7hoPRtPbWoJXQAAnhN9nqUHObHQ7PaiJCtkWQzEzpMexPMRR3BIPKkwOUMAwT6YcNbvywgnLvU2SV7498rbp%2FZbktuAR3Ok1E3O6p4ZJJ4s%2FpW8HAZgIBJpDlPUQt%2FjulQLtwP2I2GUPVmgWheXitnWsWq1S3E2k4viysXwS8H2%2B8BBdxjS%2Bv1ruGXbqd4RpdzdLst4e9YtHGWNZuiaL8zX8%2FHA1zreyrewY2fpB4g0pHnh%2B3IDE48eIohb4HQoDc9vXy4s8sIoqLScmTLyxyq1pPYlak1n1PWdbLcz4TBr41JnLELzF%2BBwCkyrLts9dhisSseaIB7d4g4JQnw%3D%3D</downloadURL>
</data>
</response>
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
| key | value |
|---|---|
| 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 |
Response Structure
All API responses follow a consistent structure with the following fields:
| Field | Type | Description | Example |
|---|---|---|---|
status | string | Indicates whether the request was successful ("ok") or failed ("error") | ok |
error | string | null | Contains error message if status is "error", otherwise null | null |
data | object | null | Contains 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:
| Field | Type | Sample Value | Description |
|---|---|---|---|
id | string | Unique identifier for the generated chart | |
format | string | File format of the generated chart image | |
expires | number | Unix timestamp when the chart URL expires | |
type | string | Type of chart that was generated | |
downloadURL | string | Temporary URL to download the generated chart |
Headers
Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all 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.
Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.
POST https://api.apiverve.com/v1/graphqlquery {
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 accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →
Rate Limiting
Chart Generator requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →
Error Codes
The Chart Generator API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →
SDKs for Chart Generator
Official Chart Generator packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →
No-Code Integrations
Chart Generator works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →
Frequently Asked Questions
How do I get an API key for Chart Generator?
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?
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.








