Code Detector API
Overview
To use Code Detector, 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/codedetectorExample
How to call the Code Detector API in different programming languages.
curl -X POST \
"https://api.apiverve.com/v1/codedetector" \
-H "X-API-Key: your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"code": "a = 5\nb = 6\nc = 7\n\n# calculate the semi-perimeter\ns = (a + b + c) / 2\n\n# calculate the area\narea = (s*(s-a)*(s-b)*(s-c)) ** 0.5\nprint('The area of the triangle is %0.2f' %area)"
}'const response = await fetch('https://api.apiverve.com/v1/codedetector', {
method: 'POST',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"code": "a = 5\nb = 6\nc = 7\n\n# calculate the semi-perimeter\ns = (a + b + c) / 2\n\n# calculate the area\narea = (s*(s-a)*(s-b)*(s-c)) ** 0.5\nprint('The area of the triangle is %0.2f' %area)"
})
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
payload = {
"code": "a = 5\nb = 6\nc = 7\n\n# calculate the semi-perimeter\ns = (a + b + c) / 2\n\n# calculate the area\narea = (s*(s-a)*(s-b)*(s-c)) ** 0.5\nprint('The area of the triangle is %0.2f' %area)"
}
response = requests.post('https://api.apiverve.com/v1/codedetector', 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{}{
"code": "a = 5
b = 6
c = 7
# calculate the semi-perimeter
s = (a + b + c) / 2
# calculate the area
area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('The area of the triangle is %0.2f' %area)"
}
jsonPayload, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/codedetector", 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": {
"likelihood": 0.99,
"family": "PYTHON",
"current": "python",
"readable": "Python Code",
"extension": ".py",
"paradigm": "multi-paradigm",
"isCompiled": false
}
}Authentication
The Code Detector 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 Code Detector API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the Code Detector API:
Detect Code
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
code | string | required | The code snippet you want to detect the programming language of | - |
Response
The Code Detector 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>
<likelihood>0.99</likelihood>
<family>PYTHON</family>
<current>python</current>
<readable>Python Code</readable>
<extension>.py</extension>
<paradigm>multi-paradigm</paradigm>
<isCompiled>false</isCompiled>
</data>
</response>
status: ok
error: null
data:
likelihood: 0.99
family: PYTHON
current: python
readable: Python Code
extension: .py
paradigm: multi-paradigm
isCompiled: false
| key | value |
|---|---|
| likelihood | 0.99 |
| family | PYTHON |
| current | python |
| readable | Python Code |
| extension | .py |
| paradigm | multi-paradigm |
| isCompiled | false |
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 |
|---|---|---|---|
likelihoodPremium | number | Confidence score for code language detection (0.0 to 1.0) | |
familyPremium | string | Programming language family or category classification | |
current | string | Detected programming language in lowercase format | |
readable | string | Human-readable name of the detected programming language | |
extension | string | Standard file extension for the detected language | |
paradigmPremium | string | Programming paradigm: object-oriented, functional, procedural, multi-paradigm | |
isCompiledPremium | boolean | Whether the language is compiled or interpreted |
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 Code Detector through GraphQL to combine it with other API calls in a single request. Query only the code detector 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 {
codedetector(
input: {
code: "a = 5
b = 6
c = 7
# calculate the semi-perimeter
s = (a + b + c) / 2
# calculate the area
area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('The area of the triangle is %0.2f' %area)"
}
) {
likelihood
family
current
readable
extension
paradigm
isCompiled
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Code Detector 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
Code Detector 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 Code Detector 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 Code Detector
Official Code Detector packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →
No-Code Integrations
Code Detector 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 Code Detector?
How many credits does Code Detector cost?
Each successful Code Detector 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 code detector lookups.
Can I use Code Detector in production?
The free plan is for testing and development only. For production use of Code Detector, 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 Code Detector from a browser?
What happens if I exceed my Code Detector credit limit?
When you reach your monthly credit limit, Code Detector 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.








