List Transaction Validations

curl --request GET \
  --url https://tracer.sandbox.lerian.net/v1/validations \
  --header 'Content-Type: <content-type>' \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://tracer.sandbox.lerian.net/v1/validations"

headers = {
    "Content-Type": "<content-type>",
    "X-API-Key": "<api-key>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'Content-Type': '<content-type>', 'X-API-Key': '<api-key>'}
};

fetch('https://tracer.sandbox.lerian.net/v1/validations', 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://tracer.sandbox.lerian.net/v1/validations",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Content-Type: <content-type>",
    "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"
	"net/http"
	"io"
)

func main() {

	url := "https://tracer.sandbox.lerian.net/v1/validations"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("X-API-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://tracer.sandbox.lerian.net/v1/validations")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Content-Type"] = '<content-type>'
request["X-API-Key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "transactionValidations": [
    {
      "validationId": "019c96a0-10d2-7193-8841-0d7347efd09a",
      "accountId": "019c96a0-0c0c-7221-8cf3-13313fb60081",
      "segmentId": "019c96a0-0b4e-7079-8be0-ab6bdccf975f",
      "transactionType": "CARD",
      "amount": "1500.00",
      "currency": "BRL",
      "decision": "ALLOW",
      "reason": "Transaction approved",
      "matchedRuleIds": [],
      "exceededLimitIds": [],
      "processingTimeMs": 23,
      "createdAt": "2026-01-30T10:30:00Z"
    }
  ],
  "hasMore": true,
  "nextCursor": "eyJpZCI6IjEyMzQifQ=="
}

GET

validations

List Transaction Validations

curl --request GET \
  --url https://tracer.sandbox.lerian.net/v1/validations \
  --header 'Content-Type: <content-type>' \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://tracer.sandbox.lerian.net/v1/validations"

headers = {
    "Content-Type": "<content-type>",
    "X-API-Key": "<api-key>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {'Content-Type': '<content-type>', 'X-API-Key': '<api-key>'}
};

fetch('https://tracer.sandbox.lerian.net/v1/validations', 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://tracer.sandbox.lerian.net/v1/validations",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Content-Type: <content-type>",
    "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"
	"net/http"
	"io"
)

func main() {

	url := "https://tracer.sandbox.lerian.net/v1/validations"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("X-API-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://tracer.sandbox.lerian.net/v1/validations")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Content-Type"] = '<content-type>'
request["X-API-Key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "transactionValidations": [
    {
      "validationId": "019c96a0-10d2-7193-8841-0d7347efd09a",
      "accountId": "019c96a0-0c0c-7221-8cf3-13313fb60081",
      "segmentId": "019c96a0-0b4e-7079-8be0-ab6bdccf975f",
      "transactionType": "CARD",
      "amount": "1500.00",
      "currency": "BRL",
      "decision": "ALLOW",
      "reason": "Transaction approved",
      "matchedRuleIds": [],
      "exceededLimitIds": [],
      "processingTimeMs": 23,
      "createdAt": "2026-01-30T10:30:00Z"
    }
  ],
  "hasMore": true,
  "nextCursor": "eyJpZCI6IjEyMzQifQ=="
}

Authorizations

X-API-Key

string

header

required

API Key authentication. Used by single-tenant deployments (MULTI_TENANT_ENABLED=false). Sent on every /v1/* request.

Headers

Content-Type

string

required

The type of media of the resource. Must be application/json.

X-API-Key

string

required

The API Key for authentication. This header is required for all endpoints except health checks.

X-Request-Id

string<uuid>

A unique identifier used to trace and track each request.

Query Parameters

limit

integer

default:100

The maximum number of items to include in the response. Default: 100, Max: 1000

Required range: 1 <= x <= 1000

cursor

string

Pagination cursor from previous response. When using cursor, sortBy and sortOrder cannot be changed.

sort_by

enum<string>

default:created_at

The field used to sort the results.

Available options:

created_at,

processing_time_ms

sort_order

enum<string>

default:DESC

The order used to sort the results.

Available options:

ASC,

DESC

start_date

string<date-time>

Filter from this date (inclusive). Must be RFC3339 format with timezone. Defaults to 90 days before current time.

end_date

string<date-time>

Filter to this date (exclusive). Must be RFC3339 format with timezone. Defaults to current time.

decision

enum<string>

Filter by decision (ALLOW, DENY, REVIEW).

Available options:

ALLOW,

DENY,

REVIEW

account_id

string<uuid>

Filter by account ID (UUID).

matched_rule_id

string<uuid>

Filter by matched rule ID (UUID).

exceeded_limit_id

string<uuid>

Filter by exceeded limit ID (UUID).

segment_id

string<uuid>

Filter by segment ID (UUID).

portfolio_id

string<uuid>

Filter by portfolio ID (UUID).

transaction_type

enum<string>

Filter by transaction type.

Available options:

CARD,

WIRE,

PIX,

CRYPTO

Response

Indicates that the request was successful and the response contains the expected data.

Paginated list of transaction validations (returns ValidationSummary — a flat, list-optimized shape with fewer fields than TransactionValidation).

transactionValidations

object[]

List of transaction validation records.

Show child attributes

hasMore

boolean

Whether there are more results available.

nextCursor

string | null

Cursor for fetching the next page. Null if no more results.

⌘I

Getting started

Validations API

Rules API

Limits API

Reservations API

Audit Events API

Error handling

List Transaction Validations

Authorizations

Headers

Query Parameters

Response