Validate Address

curl --request GET \
  --url https://api.blockradar.co/v1/addresses/validate \
  --header 'x-api-key: <api-key>'

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.blockradar.co/v1/addresses/validate', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.blockradar.co/v1/addresses/validate",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.blockradar.co/v1/addresses/validate"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-api-key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.blockradar.co/v1/addresses/validate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "data": {
    "isValid": true,
    "address": "0x451dEFC27B45808078e875556AF06bCFdC697BA4",
    "blockchain": "ethereum"
  },
  "message": "Address validation",
  "statusCode": 200
}

Addresses

Validate Address

This endpoint checks whether an address is syntactically valid for a given blockchain — for example, to validate a customer-supplied withdrawal destination at input time instead of discovering the error when the withdrawal fails.

Validation happens offline against the blockchain’s address format; no on-chain lookup or AML screening is performed. For EVM blockchains, a valid address is returned in its EIP-55 checksummed form.

An address that fails validation still returns 200 with isValid: false — error status codes are reserved for malformed requests (400) and blockchains that are unknown or unavailable (404).

GET

addresses

validate

Validate Address

curl --request GET \
  --url https://api.blockradar.co/v1/addresses/validate \
  --header 'x-api-key: <api-key>'

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.blockradar.co/v1/addresses/validate', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.blockradar.co/v1/addresses/validate",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.blockradar.co/v1/addresses/validate"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-api-key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.blockradar.co/v1/addresses/validate")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "data": {
    "isValid": true,
    "address": "0x451dEFC27B45808078e875556AF06bCFdC697BA4",
    "blockchain": "ethereum"
  },
  "message": "Address validation",
  "statusCode": 200
}

Authorizations

x-api-key

string

header

required

Query Parameters

address

string

required

The address to validate

Example:

"0x451defc27b45808078e875556af06bcfdc697ba4"

blockchain

string

required

The blockchain slug to validate the address against. Case-insensitive. One of: ethereum, bnb-smart-chain, polygon, tron, base, arbitrum, optimism, solana, asset-chain, celo, lisk, avalanche, arc, plasma, tempo, stellar.

Example:

"ethereum"

Response

200 - Valid / 200 - Invalid

data

object

Show child attributes

message

string

Example:

"Address validation"

statusCode

number

Example:

200

API Documentation

Wallet

Addresses

Customer

Asset

Transactions

Withdraw

Withdraw Fiat

Signing

Swap

Liquidity Pool

Virtual Accounts

Deposit Fiat

Auto Settlements

Smart Contract

Gateway

Payment Links

AML

Asset Recovery

Miscellaneous

Rewards

Validate Address

Authorizations

Query Parameters

Response