B2B Offramp
curl --request POST \
--url https://api.linkio.world/otc/offramp \
--header 'Content-Type: application/json' \
--header 'ngnc-sec-key: <api-key>' \
--data '
{
"customer_id": "<string>",
"amount": "<string>",
"wallet_address": "<string>",
"paymentDetails": {
"accountNumber": "<string>",
"routingNumber": "<string>",
"accountName": "<string>",
"bankName": "<string>"
}
}
'import requests
url = "https://api.linkio.world/otc/offramp"
payload = {
"customer_id": "<string>",
"amount": "<string>",
"wallet_address": "<string>",
"paymentDetails": {
"accountNumber": "<string>",
"routingNumber": "<string>",
"accountName": "<string>",
"bankName": "<string>"
}
}
headers = {
"ngnc-sec-key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'ngnc-sec-key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
customer_id: '<string>',
amount: '<string>',
wallet_address: '<string>',
paymentDetails: {
accountNumber: '<string>',
routingNumber: '<string>',
accountName: '<string>',
bankName: '<string>'
}
})
};
fetch('https://api.linkio.world/otc/offramp', 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.linkio.world/otc/offramp",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'customer_id' => '<string>',
'amount' => '<string>',
'wallet_address' => '<string>',
'paymentDetails' => [
'accountNumber' => '<string>',
'routingNumber' => '<string>',
'accountName' => '<string>',
'bankName' => '<string>'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"ngnc-sec-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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.linkio.world/otc/offramp"
payload := strings.NewReader("{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("ngnc-sec-key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.linkio.world/otc/offramp")
.header("ngnc-sec-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.linkio.world/otc/offramp")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["ngnc-sec-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}"
response = http.request(request)
puts response.read_body{
"code": "TXN_SUCCESSFUL",
"status": "Success",
"message": "<string>",
"data": {
"transaction_id": "<string>",
"reference": "link-otc-87654321",
"type": "offramp",
"stables": "<string>",
"amount": "<string>",
"currency": "<string>",
"payout_amount": "<string>",
"rate": 123,
"transaction_status": "pending",
"payment_method": "<string>",
"date_created": "<string>"
}
}B2B
B2B Offramp
Initiate a stablecoin → fiat payout via LINK’s B2B API. Provide core transaction details plus your settlement banking details (the account you want to receive fiat INTO).
POST
/
otc
/
offramp
B2B Offramp
curl --request POST \
--url https://api.linkio.world/otc/offramp \
--header 'Content-Type: application/json' \
--header 'ngnc-sec-key: <api-key>' \
--data '
{
"customer_id": "<string>",
"amount": "<string>",
"wallet_address": "<string>",
"paymentDetails": {
"accountNumber": "<string>",
"routingNumber": "<string>",
"accountName": "<string>",
"bankName": "<string>"
}
}
'import requests
url = "https://api.linkio.world/otc/offramp"
payload = {
"customer_id": "<string>",
"amount": "<string>",
"wallet_address": "<string>",
"paymentDetails": {
"accountNumber": "<string>",
"routingNumber": "<string>",
"accountName": "<string>",
"bankName": "<string>"
}
}
headers = {
"ngnc-sec-key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'ngnc-sec-key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
customer_id: '<string>',
amount: '<string>',
wallet_address: '<string>',
paymentDetails: {
accountNumber: '<string>',
routingNumber: '<string>',
accountName: '<string>',
bankName: '<string>'
}
})
};
fetch('https://api.linkio.world/otc/offramp', 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.linkio.world/otc/offramp",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'customer_id' => '<string>',
'amount' => '<string>',
'wallet_address' => '<string>',
'paymentDetails' => [
'accountNumber' => '<string>',
'routingNumber' => '<string>',
'accountName' => '<string>',
'bankName' => '<string>'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"ngnc-sec-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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.linkio.world/otc/offramp"
payload := strings.NewReader("{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("ngnc-sec-key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.linkio.world/otc/offramp")
.header("ngnc-sec-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.linkio.world/otc/offramp")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["ngnc-sec-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"customer_id\": \"<string>\",\n \"amount\": \"<string>\",\n \"wallet_address\": \"<string>\",\n \"paymentDetails\": {\n \"accountNumber\": \"<string>\",\n \"routingNumber\": \"<string>\",\n \"accountName\": \"<string>\",\n \"bankName\": \"<string>\"\n }\n}"
response = http.request(request)
puts response.read_body{
"code": "TXN_SUCCESSFUL",
"status": "Success",
"message": "<string>",
"data": {
"transaction_id": "<string>",
"reference": "link-otc-87654321",
"type": "offramp",
"stables": "<string>",
"amount": "<string>",
"currency": "<string>",
"payout_amount": "<string>",
"rate": 123,
"transaction_status": "pending",
"payment_method": "<string>",
"date_created": "<string>"
}
}Authorizations
Body
application/json
Your platform’s customer ID for this transaction.
Fiat currency to receive.
Available options:
AED, AOA, BIF, CDF, DZD, EGP, ETB, EUR, GBP, GHS, LYD, MAD, MUR, MWK, MZN, NGN, SGD, SLE, SSP, TRY, TZS, UGX, USD, XAF, XOF Stablecoin amount being sent.
Stablecoin being sent.
Available options:
USDC, USDT Wallet address sending the stablecoin.
Blockchain network for the stablecoin. USDT → TRON, POLYGON, or SOLANA. USDC → ETHEREUM, BSC, POLYGON, BASE, SOLANA, or STELLAR.
Available options:
TRON, ETHEREUM, BSC, POLYGON, SOLANA, BASE, STELLAR Your settlement banking details — the account you want to receive fiat INTO. Required fields depend on your currency’s payment method. Call GET /otc/rate_quote first to get the paymentMethod for your currency.
- ACH (USD)
- Local Bank Transfer (NGN, BIF, CDF, DZD, ETB, GBP, GHS, LYD, MUR, MWK, MZN, SGD, SLE, SSP, TZS, UGX)
- IBAN (AED, AOA, EGP, EUR, GBP, TRY)
- RIB (MAD, XAF, XOF)
Show child attributes
Show child attributes
⌘I

