curl --request GET \
--url https://laso.finance/search-merchants \
--header 'Authorization: <api-key>'import requests
url = "https://laso.finance/search-merchants"
headers = {"Authorization": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: '<api-key>'}};
fetch('https://laso.finance/search-merchants', 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://laso.finance/search-merchants",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: <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://laso.finance/search-merchants"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://laso.finance/search-merchants")
.header("Authorization", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://laso.finance/search-merchants")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = '<api-key>'
response = http.request(request)
puts response.read_body{
"merchants": [
{
"name": "Amazon",
"url": "amazon.com",
"status": "accepted",
"restriction_note": "<string>",
"description": "<string>",
"notes": "<string>"
}
],
"query": "<string>",
"count": 123,
"card_type": "Non-Reloadable U.S.",
"note": "<string>"
}{
"error": "q query parameter is required"
}{
"error": "Missing or invalid Authorization header"
}Search merchant spend data
Search Laso’s merchant database for confirmed spend data for a given card type. Returns whether the card was accepted, not accepted, or unknown at each merchant.
Use card_type to search by the USA prepaid card (Non-Reloadable U.S., the default) or the international prepaid card (Non-Reloadable International). USA searches exclude merchants with non-US country-code TLDs; international searches do not.
Important: This database only contains merchants where Laso users have previously attempted a transaction. A merchant not being listed, or being listed as unknown, does NOT mean the card won’t work there — it just means it hasn’t been tried yet. If a merchant is listed as accepted, you can confidently use the card there. If listed as not_accepted, the card will fail at that merchant.
Banking and money-transfer merchants are always returned as not_accepted with a restriction_note, whatever the transaction history shows. Spending there counts as a transfer of value and is not supported on any card.
Requires a Bearer token from /auth or /get-card.
curl --request GET \
--url https://laso.finance/search-merchants \
--header 'Authorization: <api-key>'import requests
url = "https://laso.finance/search-merchants"
headers = {"Authorization": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: '<api-key>'}};
fetch('https://laso.finance/search-merchants', 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://laso.finance/search-merchants",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: <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://laso.finance/search-merchants"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "<api-key>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://laso.finance/search-merchants")
.header("Authorization", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://laso.finance/search-merchants")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = '<api-key>'
response = http.request(request)
puts response.read_body{
"merchants": [
{
"name": "Amazon",
"url": "amazon.com",
"status": "accepted",
"restriction_note": "<string>",
"description": "<string>",
"notes": "<string>"
}
],
"query": "<string>",
"count": 123,
"card_type": "Non-Reloadable U.S.",
"note": "<string>"
}{
"error": "q query parameter is required"
}{
"error": "Missing or invalid Authorization header"
}Authorizations
Firebase ID token from /auth or any paid route, sent as a Bearer token: Authorization: Bearer <id_token> (the Bearer prefix is required).
Query Parameters
Search query — the merchant name to search for (e.g. "amazon", "netflix")
Which card type to search acceptance for. Defaults to Non-Reloadable U.S. if omitted (preserves existing client behavior). Pass Non-Reloadable International to search for international prepaid card acceptance.
Non-Reloadable U.S., Non-Reloadable International Response
Merchant search results
Show child attributes
Show child attributes
The search query that was used
Number of merchants returned
The card type results are filtered for
"Non-Reloadable U.S."
Important caveat about the data — this database only includes merchants where users have previously attempted transactions
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