Request Phone Number Change (Consent Step 1)
curl --request POST \
--url https://api.rach.finance/caas/api/v1/users/phone-change/request \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"new_phone_number": "+2250700009999",
"old_phone_number": "+2250700000001"
}
'import requests
url = "https://api.rach.finance/caas/api/v1/users/phone-change/request"
payload = {
"new_phone_number": "+2250700009999",
"old_phone_number": "+2250700000001"
}
headers = {
"X-API-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({new_phone_number: '+2250700009999', old_phone_number: '+2250700000001'})
};
fetch('https://api.rach.finance/caas/api/v1/users/phone-change/request', 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.rach.finance/caas/api/v1/users/phone-change/request",
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([
'new_phone_number' => '+2250700009999',
'old_phone_number' => '+2250700000001'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.rach.finance/caas/api/v1/users/phone-change/request"
payload := strings.NewReader("{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-API-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.rach.finance/caas/api/v1/users/phone-change/request")
.header("X-API-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.rach.finance/caas/api/v1/users/phone-change/request")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}"
response = http.request(request)
puts response.read_body{
"expires_at": "<string>",
"message": "<string>",
"status": "OTP_SENT",
"wallet_address": "<string>"
}{}{}{}B2B - Users
Request Phone Number Change (Consent Step 1)
Starts a consent-gated phone number change. A one-time code is SMSed to the NEW number — receiving it proves the person controls the destination SIM. The wallet address, balance and history are preserved. Only a member of the wallet may initiate. Complete with POST /v1/users/phone-change/confirm.
POST
/
v1
/
users
/
phone-change
/
request
Request Phone Number Change (Consent Step 1)
curl --request POST \
--url https://api.rach.finance/caas/api/v1/users/phone-change/request \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"new_phone_number": "+2250700009999",
"old_phone_number": "+2250700000001"
}
'import requests
url = "https://api.rach.finance/caas/api/v1/users/phone-change/request"
payload = {
"new_phone_number": "+2250700009999",
"old_phone_number": "+2250700000001"
}
headers = {
"X-API-Key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({new_phone_number: '+2250700009999', old_phone_number: '+2250700000001'})
};
fetch('https://api.rach.finance/caas/api/v1/users/phone-change/request', 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.rach.finance/caas/api/v1/users/phone-change/request",
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([
'new_phone_number' => '+2250700009999',
'old_phone_number' => '+2250700000001'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"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"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.rach.finance/caas/api/v1/users/phone-change/request"
payload := strings.NewReader("{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-API-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.rach.finance/caas/api/v1/users/phone-change/request")
.header("X-API-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.rach.finance/caas/api/v1/users/phone-change/request")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"new_phone_number\": \"+2250700009999\",\n \"old_phone_number\": \"+2250700000001\"\n}"
response = http.request(request)
puts response.read_body{
"expires_at": "<string>",
"message": "<string>",
"status": "OTP_SENT",
"wallet_address": "<string>"
}{}{}{}Authorizations
Your Rach B2B API key. Use rach_sk_live_* for production (on-chain) or rach_sk_test_* for sandbox (no-chain simulation).
Body
application/json
Old and new phone numbers
⌘I