curl --request POST \
--url https://api.truthlocks.com/v1/risk/signals \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
}
'import requests
url = "https://api.truthlocks.com/v1/risk/signals"
payload = {
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
}
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({
source: 'device_fingerprint',
signal_type: 'velocity_anomaly',
score: 0.85,
entity_type: 'user',
entity_id: 'usr_8f14e45f',
details: {ip: '203.0.113.42', country: 'US', reason: 'multiple_accounts_same_device'}
})
};
fetch('https://api.truthlocks.com/v1/risk/signals', 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.truthlocks.com/v1/risk/signals",
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([
'source' => 'device_fingerprint',
'signal_type' => 'velocity_anomaly',
'score' => 0.85,
'entity_type' => 'user',
'entity_id' => 'usr_8f14e45f',
'details' => [
'ip' => '203.0.113.42',
'country' => 'US',
'reason' => 'multiple_accounts_same_device'
]
]),
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.truthlocks.com/v1/risk/signals"
payload := strings.NewReader("{\n \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\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.truthlocks.com/v1/risk/signals")
.header("X-API-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.truthlocks.com/v1/risk/signals")
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 \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"tenant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
},
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"created_at": "2023-11-07T05:31:56Z"
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}Ingest risk signal
Submit a risk signal for a specific entity. Risk signals are scored observations from fraud-detection sources such as device fingerprinting, IP reputation services, email verification providers, or your own internal rules engine.
Each signal is stored with full tenant isolation (row-level security) and can be used to inform downstream risk decisions.
curl --request POST \
--url https://api.truthlocks.com/v1/risk/signals \
--header 'Content-Type: application/json' \
--header 'X-API-Key: <api-key>' \
--data '
{
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
}
'import requests
url = "https://api.truthlocks.com/v1/risk/signals"
payload = {
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
}
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({
source: 'device_fingerprint',
signal_type: 'velocity_anomaly',
score: 0.85,
entity_type: 'user',
entity_id: 'usr_8f14e45f',
details: {ip: '203.0.113.42', country: 'US', reason: 'multiple_accounts_same_device'}
})
};
fetch('https://api.truthlocks.com/v1/risk/signals', 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.truthlocks.com/v1/risk/signals",
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([
'source' => 'device_fingerprint',
'signal_type' => 'velocity_anomaly',
'score' => 0.85,
'entity_type' => 'user',
'entity_id' => 'usr_8f14e45f',
'details' => [
'ip' => '203.0.113.42',
'country' => 'US',
'reason' => 'multiple_accounts_same_device'
]
]),
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.truthlocks.com/v1/risk/signals"
payload := strings.NewReader("{\n \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\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.truthlocks.com/v1/risk/signals")
.header("X-API-Key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.truthlocks.com/v1/risk/signals")
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 \"source\": \"device_fingerprint\",\n \"signal_type\": \"velocity_anomaly\",\n \"score\": 0.85,\n \"entity_type\": \"user\",\n \"entity_id\": \"usr_8f14e45f\",\n \"details\": {\n \"ip\": \"203.0.113.42\",\n \"country\": \"US\",\n \"reason\": \"multiple_accounts_same_device\"\n }\n}"
response = http.request(request)
puts response.read_body{
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"tenant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"source": "device_fingerprint",
"signal_type": "velocity_anomaly",
"score": 0.85,
"details": {
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
},
"entity_type": "user",
"entity_id": "usr_8f14e45f",
"created_at": "2023-11-07T05:31:56Z"
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}{
"code": "AUTH_REQUIRED",
"message": "Authentication required",
"http_status": 401
}Signal sources
Signals must specify one of the following sources:| Source | Description |
|---|---|
verification | Signals from the verification pipeline |
login | Login-related fraud indicators |
attestation | Attestation-related signals |
external | Signals from third-party fraud providers |
manual | Manually reviewed or submitted signals |
Subject types
Each signal must reference a subject. Supported types:| Subject type | Use case |
|---|---|
user | Signals tied to a specific user account |
issuer | Signals related to an issuer entity |
attestation | Signals related to a specific attestation |
session | Session-level behavioral signals |
ip | IP-address-level signals |
device | Signals from device fingerprinting |
Risk score
Therisk_score field is an integer between 0 and 100:
- 0 — no risk detected
- 50 — moderate risk
- 80+ — triggers automatic review decisions
- 100 — highest risk
Idempotency
Include anIdempotency-Key header (UUID) to prevent duplicate signals during retries. If you send the same key twice, the duplicate is silently ignored.Authorizations
API key for machine-to-machine authentication
Body
Origin of the signal (e.g. device_fingerprint, ip_reputation, email_verification, document_analysis, behavioral)
"device_fingerprint"
Classification of the risk signal
"velocity_anomaly"
Risk score between 0 (no risk) and 1 (highest risk)
0 <= x <= 10.85
The type of entity this signal relates to
user, device, ip, document, session "user"
Identifier of the entity being evaluated
"usr_8f14e45f"
Arbitrary metadata to attach to the signal
{
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
Response
Risk signal ingested
Origin of the signal (e.g. device_fingerprint, ip_reputation, email_verification, document_analysis, behavioral)
"device_fingerprint"
Classification of the risk signal
"velocity_anomaly"
Risk score between 0 (no risk) and 1 (highest risk)
0 <= x <= 10.85
Arbitrary metadata associated with the signal
{
"ip": "203.0.113.42",
"country": "US",
"reason": "multiple_accounts_same_device"
}
The type of entity this signal relates to
user, device, ip, document, session "user"
Identifier of the entity being evaluated
"usr_8f14e45f"

