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Get API Access in 3 Steps

  1. Visit developer.kas.fyi/ and sign up for a free account.
  2. Verify your email address
  1. Log into your My Account and navigate to API Key section
  2. Click Generate New Key
  3. Securely store your key
Use this sample request to get address tag:
curl --request GET \
  --url https://api.kas.fyi/v1/addresses/{address}/tag \
  --header 'x-api-key: <api-key>'

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Code Examples

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TypeScript/JavaScript

const response = await fetch(
  'https://api.kas.fyi/v1/addresses/{address}/tag',
  {
    headers: { 'x-api-key': 'YOUR_API_KEY' },
  }
);

if (!response.ok) {
  throw new Error(`HTTP error! status: ${response.status}`);
}

const data = await response.json();
console.log(data);

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Python

import requests

url = "https://api.kas.fyi/v1/addresses/{address}/tag"
headers = {"x-api-key": "YOUR_API_KEY"}

response = requests.get(url, headers=headers)
response.raise_for_status()  # Raise exception for bad status codes

data = response.json()
print(data)

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cURL

curl --request GET \
  --url https://api.kas.fyi/v1/addresses/{address}/tag \
  --header 'x-api-key: <api-key>'

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Expected Response

{
  "tag": {
    "address": "kaspa:qpzpfwcsqsxhxwup26r55fd0ghqlhyugz8cp6y3wxuddc02vcxtjg75pspnwz",
    "name": "Kucoin Wallet",
    "link": "https://kucoin.com",
    "type": "regular"
  }
}

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Next Steps

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