Integration Coming Soon:

Accept K21 Crypto Payments

Accept payments in K21 for free using Poof's k21 payment gateway.

Get Started
Pay with

K21

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Popular Cryptocurrencies

USD Coin

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Tether

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Chainlink

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DAI

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Enjin

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Shiba Inu

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Hex

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Bat

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Aaeve

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BinanceUSD

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Uniswap

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0x

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Pax USD

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Storj

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Gnosis

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Cartesi

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Augur

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Raiden

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1nch

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Ren

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Celer

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Golem

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Status

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Gemini

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Gala

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Frax

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sUSD

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Basic

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mStable USD

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Streamr

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OriginTrail

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Request

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Loopring

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The Sandbox

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Sushiswap

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Chiliz

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Maker

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Axie Infinity

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Crypto.com

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LEO

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Compound

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Yearn.finance

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Perpetual

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Neutrino USD

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HUSD

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Swipe

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Reserve

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StormX

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iExec RLC

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Metal

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Tellor

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Hunt

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Whale

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Suku

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AMP

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OKB

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Free k21 Payment Processor

Free K21 Payment Processing Gateway

Accept K21 payments on your website

Poof Checkout can help you invoice and accept K21 payments from your users, with non-custodial payments going directly to your K21 wallet.

K21 for E-Commerce and Donations

Accept K21 for E-Commerce Shops alongside other popular payment systems. Become part of the list of companies that accepts k21

Convert K21 to Fiat

Accept K21 for E-Commerce alongside other popular payment systems and get paid out in fiat.

K21 REST Payment Processor API

Free K21 API

Instant access over to the k21 blockchain network. Connect to Poof's full node with a single line of code.

6000+ Currency Exchange Rates API
300+ Different Payment Options Supported
Webhook Notifications
Free-to-Use Rest API
Checkout, Charges, and Payouts
Hot Wallet and Non-Custodial Wallets
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import requests

import json

api_key = T_xeh_Hr_tCS9zIh1uwmrw

// Create a K21 payment charge to track blockchain payments.

def create_charge():

payload = { currency: 'EUR' , amount: 15, crypto: 'k21' }

r = requests.post("https://www.poof.io/api/v1/create_charge",

json = payload,

headers = { 'Authorization': api_key })

return r.json()

// Returns K21 Payment Address and Tracking Information.

print( create_charge() )

Comprehensive libraries

Poof's REST API is available for all of the most commonly used languages and frameworks.

Develop

Accept donations with K21 or create your own payment flow

Create K21 Invoices Track K21 Payments Create K21 Checkout Receive K21 Webhooks Access Crypto Exchange APIs

Create K21 Invoices

Create a K21 payment widget and invoice in minutes to invoice your customers. Select local currency or create specific rates in K21.

No Fees
Recieve k21 Payments
Hosted Invoice or Whitelabel
Highly Customizable
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import requests

import json

api_key = A_oem_Ek_zCS9wIh11wpre

// Create a payment charge to track blockchain payments.

def create_invoice():

payload = { currency: 'EUR' , amount: 15, crypto: 'k21' }

r = requests.post("https://www.poof.io/api/v1/create_invoice",

json = payload,

headers = { 'Authorization': api_key })

return r.json()

// Returns K21 Invoice URL.

print( create_invoice() )

Track K21 Payments

Poof will monitor the k21 blockchain for payments you create. Create your own payment flow in K21, make an exchange, or create your own payment processor.

Instant Payment Tracking
Notifications and Webhooks
No-Address Reuse
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import requests

import json

api_key = T_xeh_Hr_tCS9zIh1uwmrw

// Create a payment invoice to track blockchain payments.

def create_charge():

payload = { currency: 'USD' , amount: 15, crypto: 'k21' }

r = requests.post("https://www.poof.io/api/v1/create_charge",

json = payload,

headers = { 'Authorization': api_key })

return r.json()

// Returns K21 Payment Address and Blockchain Information.

print( create_charge() )

Create K21 Checkout

Collect customer information and emails with Poof Checkout. Accept K21payments on your domain without redirects.

300+ Payment Methods
Optimized for Desktop and Mobile
Whitelabel Checkout
Faster payments settlement
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import requests

import json

api_key = Okwe1m_ek1tCS9z_h1ewmrw

// Create a hosted checkout to receive blockchain payments.

def create_checkout():

payload = { amount: '15' , username: Poof, fields: ["Email", "Amount"] }

r = requests.post("https://www.poof.io/api/v1/create_invoice",

json = payload,

headers = { 'Authorization': api_key })

return r.text()

//"https://www.poof.io/checkout/session/eyJ1c2VybmF" .

print( create_checkout() )

Receive K21 Webhook Notfications

Subscribe to k21 payment notifications coming towards your wallet and automate BTC transactions.

Notifications of New BTC Payments
Notifications of BTC Payouts
Notifications of BTC Payment Information
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@app.route ('/ipn', methods=['POST'])

amount: request.form.get('amount')

currency: request.form.get('currency')')

payment_id: request.form.get('payment_id')

print(request.form)

Access Crypto Exchange API

Free cryptocurrency and fiat exchange rates API. Query over 6000+ cryptocurrencies and exchange data.

No-Rate Limit
Free to Use
Simple REST APi
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import requests

import json

api_key = Okwe1m_ek1tCS9z_h1ewmrw

// Create a hosted checkout to receive blockchain payments.

def fetch_rate():

payload = { base: 'USD' }

r = requests.post("https://www.poof.io/api/v1/fetch_crypto_rates",

json = payload,

headers = { 'Authorization': api_key })

return r.json()["BTC"]

//K21Price API

print(" BTC Price: " + fetch_rate())