CSR Parser API

OnlineCredit Usage:1 per callRefreshed 1 month ago

avg: 289ms|p50: 273ms|p75: 299ms|p90: 331ms|p99: 393ms

CSR Parser extracts and analyzes information from Certificate Signing Requests (CSRs), providing detailed subject information, public key details, and fingerprints.

The CSR Parser API provides reliable and fast access to csr parser data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.

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

View in Marketplace

POST Endpoint

URL

https://api.apiverve.com/v1/csrparser

Code Examples

Here are examples of how to call the CSR Parser API in different programming languages:

cURL Request

curl -X POST \
  "https://api.apiverve.com/v1/csrparser" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "csr": "-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----"
}'

JavaScript (Fetch API)

const response = await fetch('https://api.apiverve.com/v1/csrparser', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "csr": "-----BEGIN CERTIFICATE REQUEST-----\nMIICvDCCAaQCAQAwdzELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWEx\nFjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xEzARBgNVBAoMCkV4YW1wbGUgQ28xEDAO\nBgNVBAsMB0RldlRlYW0xFDASBgNVBAMMC2V4YW1wbGUuY29tMIIBIjANBgkqhkiG\n9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuqKT3qPzGqKqV3LqR2r3XqKqKqKqKqKqKqKq\nKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq\nKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq\nKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq\nKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq\nKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq\nKwIDAQABoAAwDQYJKoZIhvcNAQELBQADggEBAH4jI5yKqKqKqKqKqKqKqKqKqKqK\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----"
})
});

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 = {
    "csr": "-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----"
}

response = requests.post('https://api.apiverve.com/v1/csrparser', 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({
  "csr": "-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----"
});

const req = https.request('https://api.apiverve.com/v1/csrparser', 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($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/csrparser');
curl_setopt($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({
    'csr': '-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----'
}));

$response = curl_exec($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{}{
        "csr": "-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----"
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/csrparser", 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/csrparser')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

payload = {
  "csr": "-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----"
}

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 = @"{
        ""csr"": ""-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----""
}";
        var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");

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

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

Authentication

The CSR Parser 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 CSR Parser API directly in your browser with live requests and responses.

Try CSR Parser APIView details and test in the API marketplace

Parameters

The following parameters are available for the CSR Parser API:

Parse CSR

Parameter	Type	Required	Description	Default	Example
`csr`	string	`required`	The PEM-formatted Certificate Signing Request to parse	-	`-----BEGIN CERTIFICATE REQUEST-----...`

Response

The CSR Parser API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

JSON Response

200 OK

{
  "status": "ok",
  "error": null,
  "data": {
    "version": "v1",
    "subject": {
      "common_name": "example.com",
      "organization": "Example Company Inc",
      "organizational_unit": "IT Department",
      "locality": "San Francisco",
      "state": "California",
      "country": "US",
      "email": "[email protected]"
    },
    "public_key": {
      "algorithm": "RSA",
      "size_bits": 2048,
      "exponent": 65537
    },
    "signature_algorithm": "SHA256withRSA",
    "extensions": [],
    "fingerprints": {
      "sha1": "82:D3:E3:9A:FB:85:22:65:16:84:43:2F:BB:05:35:2A:95:37:BF:58",
      "sha256": "D8:73:E8:A3:DE:22:57:D6:AD:A0:AD:AB:53:75:FB:09:07:79:4D:21:CF:F1:0A:C0:55:EF:4B:67:A0:20:FE:9D",
      "md5": "4A:AC:A6:9D:40:6C:2F:34:51:D3:A7:7E:06:23:66:0A"
    },
    "pem": "-----BEGIN CERTIFICATE REQUEST-----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\nqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK\n-----END CERTIFICATE REQUEST-----",
    "size_bytes": 705,
    "format": "PEM",
    "is_valid": true
  }
}

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>
    <version>v1</version>
    <subject>
      <common_name>example.com</common_name>
      <organization>Example Company Inc</organization>
      <organizational_unit>IT Department</organizational_unit>
      <locality>San Francisco</locality>
      <state>California</state>
      <country>US</country>
      <email>[email protected]</email>
    </subject>
    <public_key>
      <algorithm>RSA</algorithm>
      <size_bits>2048</size_bits>
      <exponent>65537</exponent>
    </public_key>
    <signature_algorithm>SHA256withRSA</signature_algorithm>
    <extensions>
    </extensions>
    <fingerprints>
      <sha1>82:D3:E3:9A:FB:85:22:65:16:84:43:2F:BB:05:35:2A:95:37:BF:58</sha1>
      <sha256>D8:73:E8:A3:DE:22:57:D6:AD:A0:AD:AB:53:75:FB:09:07:79:4D:21:CF:F1:0A:C0:55:EF:4B:67:A0:20:FE:9D</sha256>
      <md5>4A:AC:A6:9D:40:6C:2F:34:51:D3:A7:7E:06:23:66:0A</md5>
    </fingerprints>
    <pem>-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----</pem>
    <size_bytes>705</size_bytes>
    <format>PEM</format>
    <is_valid>true</is_valid>
  </data>
</response>

YAML Response

200 OK

status: ok
error: null
data:
  version: v1
  subject:
    common_name: example.com
    organization: Example Company Inc
    organizational_unit: IT Department
    locality: San Francisco
    state: California
    country: US
    email: [email protected]
  public_key:
    algorithm: RSA
    size_bits: 2048
    exponent: 65537
  signature_algorithm: SHA256withRSA
  extensions: []
  fingerprints:
    sha1: 82:D3:E3:9A:FB:85:22:65:16:84:43:2F:BB:05:35:2A:95:37:BF:58
    sha256: >-
      D8:73:E8:A3:DE:22:57:D6:AD:A0:AD:AB:53:75:FB:09:07:79:4D:21:CF:F1:0A:C0:55:EF:4B:67:A0:20:FE:9D
    md5: 4A:AC:A6:9D:40:6C:2F:34:51:D3:A7:7E:06:23:66:0A
  pem: |-
    -----BEGIN CERTIFICATE REQUEST-----
    MIICvDCCAaQCAQAwdzELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWEx
    FjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xEzARBgNVBAoMCkV4YW1wbGUgQ28xEDAO
    BgNVBAsMB0RldlRlYW0xFDASBgNVBAMMC2V4YW1wbGUuY29tMIIBIjANBgkqhkiG
    9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuqKT3qPzGqKqV3LqR2r3XqKqKqKqKqKqKqKq
    KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq
    KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq
    KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq
    KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq
    KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq
    KwIDAQABoAAwDQYJKoZIhvcNAQELBQADggEBAH4jI5yKqKqKqKqKqKqKqKqKqKqK
    qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK
    qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK
    qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK
    qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK
    qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK
    -----END CERTIFICATE REQUEST-----
  size_bytes: 705
  format: PEM
  is_valid: true

CSV Response

200 OK

key	value
version	v1
subject	{common_name:example.com,organization:Example Company Inc,organizational_unit:IT Department,locality:San Francisco,state:California,country:US,email:[email protected]}
public_key	{algorithm:RSA,size_bits:2048,exponent:65537}
signature_algorithm	SHA256withRSA
extensions	[]
fingerprints	{sha1:82:D3:E3:9A:FB:85:22:65:16:84:43:2F:BB:05:35:2A:95:37:BF:58,sha256:D8:73:E8:A3:DE:22:57:D6:AD:A0:AD:AB:53:75:FB:09:07:79:4D:21:CF:F1:0A:C0:55:EF:4B:67:A0:20:FE:9D,md5:4A:AC:A6:9D:40:6C:2F:34:51:D3:A7:7E:06:23:66:0A}
pem	-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----
size_bytes	705
format	PEM
is_valid	true

View in Marketplace

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:

Response fields marked with Premium are available exclusively on paid plans.View pricing

Field	Type	Sample Value	Description
`version`	string	`"v1"`	CSR format version identifier
`subject`	object	`{...}`	-
└ `common_name`	string	`"example.com"`	Common name from CSR subject distinguished name
└ `organization`	string	`"Example Company Inc"`	Organization name from CSR subject field
└ `organizational_unit`	string	`"IT Department"`	Organizational unit from CSR subject
└ `locality`	string	`"San Francisco"`	Locality or city from CSR subject
└ `state`	string	`"California"`	State or province from CSR subject
└ `country`	string	`"US"`	Country code from CSR subject
└ `email`	string	`"[email protected]"`	Email address from CSR subject
`public_key`	object	`{...}`	-
└ `algorithm`	string	`"RSA"`	Public key algorithm type used in CSR
└ `size_bits`	number	`2048`	Public key size in bits
└ `exponent`Premium	number	`65537`	RSA public exponent value
`signature_algorithm`Premium	string	`"SHA256withRSA"`	Algorithm used to sign the CSR
`extensions`Premium	array	`[]`	X.509 extensions included in CSR
`fingerprints`Premium	object	`{...}`	CSR fingerprints in various hash formats
└ `sha1`	string	`"82:D3:E3:9A:FB:85:22:65:16:84:43:2F:BB:05:35:2A:95:37:BF:58"`	SHA1 fingerprint of CSR in colon format
└ `sha256`	string	`"D8:73:E8:A3:DE:22:57:D6:AD:A0:AD:AB:53:75:FB:09:07:79:4D:21:CF:F1:0A:C0:55:EF:4B:67:A0:20:FE:9D"`	SHA256 fingerprint of CSR in colon format
└ `md5`	string	`"4A:AC:A6:9D:40:6C:2F:34:51:D3:A7:7E:06:23:66:0A"`	MD5 fingerprint of CSR in colon format
`pem`	string	"-----BEGIN CERTIFICATE REQUEST----- MIICvDCCAaQCAQAwdzELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWEx FjAUBgNVBAcMDVNhbiBGcmFuY2lzY28xEzARBgNVBAoMCkV4YW1wbGUgQ28xEDAO BgNVBAsMB0RldlRlYW0xFDASBgNVBAMMC2V4YW1wbGUuY29tMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuqKT3qPzGqKqV3LqR2r3XqKqKqKqKqKqKqKq KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq KqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKq KwIDAQABoAAwDQYJKoZIhvcNAQELBQADggEBAH4jI5yKqKqKqKqKqKqKqKqKqKqK qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK qKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqKqK -----END CERTIFICATE REQUEST-----"	PEM-encoded CSR data

Headers

Required and optional headers for CSR Parser API requests:

Header Name	Required	Example Value	Description
`X-API-Key`	`required`	`your_api_key_here`	Your APIVerve API key. Found in your dashboard under API Keys.
`Accept`	`optional`	`application/json`	Specify response format: application/json (default), application/xml, or application/yaml
`User-Agent`	`optional`	`MyApp/1.0`	Identifies your application for analytics and debugging purposes
`X-Request-ID`	`optional`	`req_123456789`	Custom request identifier for tracking and debugging requests
`Cache-Control`	`optional`	`no-cache`	Control caching behavior for the request and response

Learn more about request headers →

GraphQL AccessALPHA

Access CSR Parser through GraphQL to combine it with other API calls in a single request. Query only the csr parser data you need with precise field selection, and orchestrate complex data fetching workflows.

Test CSR Parser 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 {
  csrparser(
    input: {
      csr: "-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----"
    }
  ) {
    version
    subject {
      common_name
      organization
      organizational_unit
      locality
      state
      country
      email
    }
    public_key {
      algorithm
      size_bits
      exponent
    }
    signature_algorithm
    extensions
    fingerprints {
      sha1
      sha256
      md5
    }
    pem
    size_bytes
    format
    is_valid
  }
}

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

Try in GraphQL Explorer GraphQL Documentation

CORS Support

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

CORS Header	Value	Description
`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 CSR Parser 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

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

Plan	Rate Limit	Description
Free	5 requests/min	Hard rate limit enforced - exceeding will return 429 errors
Starter	No Limit	Production ready - standard traffic priority
Pro	No Limit	Production ready - preferred traffic priority
Mega	No Limit	Production ready - highest traffic priority

Learn more about rate limiting →

Rate Limit Headers

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

Header	Description
`X-RateLimit-Limit`	Maximum number of requests allowed per time window
`X-RateLimit-Remaining`	Number of requests remaining in the current window
`X-RateLimit-Reset`	Unix timestamp when the rate limit window resets

Handling Rate Limits

Free Plan: When you exceed your rate limit, CSR Parser 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 CSR Parser:

Monitor the rate limit headers to track your CSR Parser usage (Free plan only)
Cache csr parser responses where appropriate to reduce API calls
Upgrade to Pro or Mega for guaranteed no-throttle CSR Parser performance

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

Error Codes

The CSR Parser API uses standard HTTP status codes to indicate success or failure:

Code	Message	Description	Solution
`200`	`OK`	Request successful, data returned	No action needed - request was successful
`400`	`Bad Request`	Invalid request parameters or malformed request	Check required parameters and ensure values match expected formats
`401`	`Unauthorized`	Missing or invalid API key	Include x-api-key header with valid API key from dashboard
`403`	`Forbidden`	API key lacks permission or insufficient credits	Check credit balance in dashboard or upgrade plan
`429`	`Too Many Requests`	Rate limit exceeded (Free: 5 req/min)	Implement request throttling or upgrade to paid plan
`500`	`Internal Server Error`	Server error occurred	Retry request after a few seconds, contact support if persists
`503`	`Service Unavailable`	API temporarily unavailable	Wait 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 CSR Parser with SDKs

Get started quickly with official CSR Parser 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.

JitPack

Integrate CSR Parser with No-Code API Tools

Connect the CSR Parser API to your favorite automation platform without writing code. Build workflows that leverage csr parser data across thousands of apps.

ZapierConnect CSR Parser to 6,000+ apps

MakeBuild visual csr parser workflows

PipedreamCode-friendly csr parser automation

n8nSelf-host your csr parser workflows

Power AutomateUse CSR Parser in Microsoft 365

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

Frequently Asked Questions

How do I get an API key for CSR Parser?

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 CSR Parser and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.

How many credits does CSR Parser cost?

Each successful CSR Parser 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 csr parser lookups.

Can I use CSR Parser in production?

The free plan is for testing and development only. For production use of CSR Parser, 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 CSR Parser from a browser?

Yes! The CSR Parser 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 CSR Parser credit limit?

When you reach your monthly credit limit, CSR Parser 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

Browse All APIs

Explore our complete catalog of APIs

Authentication Guide

Learn about API keys and security

Rate Limits

Understand usage limits and best practices

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CSR Parser API

POST Endpoint

Code Examples

Authentication

Interactive API Playground

Parameters

Parse CSR

Response

Example Responses

Response Structure

Response Data Fields

Headers

GraphQL AccessALPHA

CORS Support

Rate Limiting

Rate Limit Headers

Handling Rate Limits

Error Codes

Integrate CSR Parser with SDKs

Integrate CSR Parser with No-Code API Tools

Frequently Asked Questions

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