Initiate a customer verification
Starts a verification process for a customer. Returns a verification URL where the customer completes the required verification step (e.g. identity check). Use the clientReferenceId to correlate this verification with your internal records.
For a non-custodial payout’s signing-link verification, this endpoint does not mint a new link — the signing link is created and delivered on the transaction.awaiting_signature webhook (set clientReferenceId to the payout id). When the referenced payout is already awaiting signature, the call returns that current live link (idempotent, so it doubles as a way to re-fetch a link you missed on the webhook); when the payout has not yet reached signature collection, it returns 409 TRANSACTION_NOT_AWAITING_SIGNATURE. A human link is returned whenever a human passkey signer can approve the payout — that is, for a passkey_required wallet, and for a programmatic wallet whose roster has an active passkey signer. A programmatic wallet with a machine-only roster has no human signer, so this returns 409 SIGNING_LINK_NOT_HUMAN_SIGNABLE; read the signingRequestId from the webhook and approve via /v2/signing-requests/{id} instead. See the Non-Custodial Payout Lifecycle guide, section “Getting the signing link”.
curl --request POST \
--url https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"clientReferenceId": "txn-abc-123"
}
'import requests
url = "https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications"
payload = { "clientReferenceId": "txn-abc-123" }
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({clientReferenceId: 'txn-abc-123'})
};
fetch('https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications', 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.sandbox.conduit.financial/v2/customers/{customerId}/verifications",
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([
'clientReferenceId' => 'txn-abc-123'
]),
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.sandbox.conduit.financial/v2/customers/{customerId}/verifications"
payload := strings.NewReader("{\n \"clientReferenceId\": \"txn-abc-123\"\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.sandbox.conduit.financial/v2/customers/{customerId}/verifications")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"clientReferenceId\": \"txn-abc-123\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications")
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 \"clientReferenceId\": \"txn-abc-123\"\n}"
response = http.request(request)
puts response.read_body{
"verificationId": "vrf_2xKjF9mQb7vN4hL1pR3w8t",
"verificationUrl": "https://app.conduit.financial/verify/vtok_2xKjF9mQb7vN4hL1pR3w8t"
}{
"type": "INVALID_OID_FORMAT",
"title": "Invalid Object ID Format",
"status": 400,
"detail": "A path or query parameter expected a valid object identifier but received a value that does not match the expected format.",
"resolution": "Verify that all IDs in the request URL and query parameters are correctly formatted. IDs are typically prefixed strings like 'cus_...', 'app_...', or 'doc_...'.",
"docs": "https://conduit-v2.mintlify.app/errors#invalid-oid-format",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "API_KEY_MISSING",
"title": "API Key Missing",
"status": 401,
"detail": "The request did not include an API key. All API requests must be authenticated.",
"resolution": "Include your API key in the 'x-api-key' header with every request.",
"docs": "https://conduit-v2.mintlify.app/errors#api-key-missing",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "API_KEY_READ_ONLY",
"title": "API Key Is Read-Only",
"status": 403,
"detail": "This API key has read-only access and cannot perform write operations. Read-only keys may make read requests (GET, HEAD, OPTIONS) only.",
"resolution": "Use a read-write API key for this request, or have an organization admin mint one from the dashboard.",
"docs": "https://conduit-v2.mintlify.app/errors#api-key-read-only",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "CUSTOMER_NOT_FOUND",
"title": "Customer Not Found",
"status": 404,
"detail": "No customer exists with the specified ID, or the customer belongs to a different organization.",
"resolution": "Verify the customer ID is correct. Use the list customers endpoint to find valid customer IDs for your organization.",
"docs": "https://conduit-v2.mintlify.app/errors#customer-not-found",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "TRANSACTION_NOT_AWAITING_SIGNATURE",
"title": "Transaction Not Awaiting Signature",
"status": 409,
"detail": "The transaction has not reached signature collection, so there is no signing link to return. Non-custodial payouts are minted a signing link only after they clear compliance and document review; that link is delivered on the passkey_required variant of the transaction.awaiting_signature webhook, never by minting one through this endpoint.",
"resolution": "Do not create a transaction_approval verification for a payout yourself. Wait for the transaction.awaiting_signature webhook and route your signers to the verificationUrl it carries (passkey_required mode). Re-fetch the payout to confirm it is still awaiting signature.",
"docs": "https://conduit-v2.mintlify.app/errors#transaction-not-awaiting-signature",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "UNSUPPORTED_MEDIA_TYPE",
"title": "Unsupported Media Type",
"status": 415,
"detail": "The request carries a body with a Content-Type this endpoint cannot parse. JSON endpoints accept 'application/json'; a body with no Content-Type header at all is assumed to be JSON. File-upload endpoints accept only 'multipart/form-data' — JSON or undeclared bodies are rejected there.",
"resolution": "Send the request body with the 'Content-Type: application/json' header. For file uploads, use 'Content-Type: multipart/form-data' — upload endpoints accept no other body type.",
"docs": "https://conduit-v2.mintlify.app/errors#unsupported-media-type",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "VERIFICATION_TYPE_NOT_REISSUABLE",
"title": "Verification Type Not Reissuable Here",
"status": 422,
"detail": "This verification type cannot be initiated through the generic verifications route because it requires per-type context the route cannot supply.",
"resolution": "Use the dedicated endpoint for this verification type. For wallet signer invites, POST /v2/customers/:customerId/wallet-signers/:signerId/reissue-invite.",
"docs": "https://conduit-v2.mintlify.app/errors#verification-type-not-reissuable",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "RATE_LIMITED",
"title": "Rate Limited",
"status": 429,
"detail": "Too many requests. This error is returned by three independent checks: the per-organization bucket applied to every authenticated API request; the per-IP bucket applied to unauthenticated traffic before an API key is validated; and the per-IP bucket applied when repeated invalid API keys are submitted from the same address. Honor the Retry-After header (also exposed as retryAfterSeconds in the body) before retrying. Current limits and remaining budget are visible in X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset on rate-limited route responses.",
"resolution": "Sleep until Retry-After seconds have elapsed, then retry. For sustained workloads exceeding the per-organization defaults, request a rate-limit increase through your support contact.",
"docs": "https://conduit-v2.mintlify.app/errors#rate-limited",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z",
"retryAfterSeconds": 3
}{
"type": "INTERNAL_ERROR",
"title": "Internal Error",
"status": 500,
"detail": "An unexpected error occurred while processing your request.",
"resolution": "Retry the request after a brief delay. If the error persists, contact support and include the correlationId from the error response for investigation.",
"docs": "https://conduit-v2.mintlify.app/errors#internal-error",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}Authorizations
Path Parameters
Body
Type of verification to initiate
wallet_signer_activation, transaction_approval, ceremony_approval, signer_recovery_enrollment Client-provided reference ID to correlate the verification with your system
1 - 60"txn-abc-123"
Response
Unique identifier for the initiated verification
^vrf_[0-9A-Za-z]{22}$"vrf_2xKjF9mQb7vN4hL1pR3w8t"
URL to redirect the user to for completing the verification
"https://app.conduit.financial/verify/vtok_2xKjF9mQb7vN4hL1pR3w8t"
curl --request POST \
--url https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"clientReferenceId": "txn-abc-123"
}
'import requests
url = "https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications"
payload = { "clientReferenceId": "txn-abc-123" }
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({clientReferenceId: 'txn-abc-123'})
};
fetch('https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications', 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.sandbox.conduit.financial/v2/customers/{customerId}/verifications",
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([
'clientReferenceId' => 'txn-abc-123'
]),
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.sandbox.conduit.financial/v2/customers/{customerId}/verifications"
payload := strings.NewReader("{\n \"clientReferenceId\": \"txn-abc-123\"\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.sandbox.conduit.financial/v2/customers/{customerId}/verifications")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"clientReferenceId\": \"txn-abc-123\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.conduit.financial/v2/customers/{customerId}/verifications")
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 \"clientReferenceId\": \"txn-abc-123\"\n}"
response = http.request(request)
puts response.read_body{
"verificationId": "vrf_2xKjF9mQb7vN4hL1pR3w8t",
"verificationUrl": "https://app.conduit.financial/verify/vtok_2xKjF9mQb7vN4hL1pR3w8t"
}{
"type": "INVALID_OID_FORMAT",
"title": "Invalid Object ID Format",
"status": 400,
"detail": "A path or query parameter expected a valid object identifier but received a value that does not match the expected format.",
"resolution": "Verify that all IDs in the request URL and query parameters are correctly formatted. IDs are typically prefixed strings like 'cus_...', 'app_...', or 'doc_...'.",
"docs": "https://conduit-v2.mintlify.app/errors#invalid-oid-format",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "API_KEY_MISSING",
"title": "API Key Missing",
"status": 401,
"detail": "The request did not include an API key. All API requests must be authenticated.",
"resolution": "Include your API key in the 'x-api-key' header with every request.",
"docs": "https://conduit-v2.mintlify.app/errors#api-key-missing",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "API_KEY_READ_ONLY",
"title": "API Key Is Read-Only",
"status": 403,
"detail": "This API key has read-only access and cannot perform write operations. Read-only keys may make read requests (GET, HEAD, OPTIONS) only.",
"resolution": "Use a read-write API key for this request, or have an organization admin mint one from the dashboard.",
"docs": "https://conduit-v2.mintlify.app/errors#api-key-read-only",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "CUSTOMER_NOT_FOUND",
"title": "Customer Not Found",
"status": 404,
"detail": "No customer exists with the specified ID, or the customer belongs to a different organization.",
"resolution": "Verify the customer ID is correct. Use the list customers endpoint to find valid customer IDs for your organization.",
"docs": "https://conduit-v2.mintlify.app/errors#customer-not-found",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "TRANSACTION_NOT_AWAITING_SIGNATURE",
"title": "Transaction Not Awaiting Signature",
"status": 409,
"detail": "The transaction has not reached signature collection, so there is no signing link to return. Non-custodial payouts are minted a signing link only after they clear compliance and document review; that link is delivered on the passkey_required variant of the transaction.awaiting_signature webhook, never by minting one through this endpoint.",
"resolution": "Do not create a transaction_approval verification for a payout yourself. Wait for the transaction.awaiting_signature webhook and route your signers to the verificationUrl it carries (passkey_required mode). Re-fetch the payout to confirm it is still awaiting signature.",
"docs": "https://conduit-v2.mintlify.app/errors#transaction-not-awaiting-signature",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "UNSUPPORTED_MEDIA_TYPE",
"title": "Unsupported Media Type",
"status": 415,
"detail": "The request carries a body with a Content-Type this endpoint cannot parse. JSON endpoints accept 'application/json'; a body with no Content-Type header at all is assumed to be JSON. File-upload endpoints accept only 'multipart/form-data' — JSON or undeclared bodies are rejected there.",
"resolution": "Send the request body with the 'Content-Type: application/json' header. For file uploads, use 'Content-Type: multipart/form-data' — upload endpoints accept no other body type.",
"docs": "https://conduit-v2.mintlify.app/errors#unsupported-media-type",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "VERIFICATION_TYPE_NOT_REISSUABLE",
"title": "Verification Type Not Reissuable Here",
"status": 422,
"detail": "This verification type cannot be initiated through the generic verifications route because it requires per-type context the route cannot supply.",
"resolution": "Use the dedicated endpoint for this verification type. For wallet signer invites, POST /v2/customers/:customerId/wallet-signers/:signerId/reissue-invite.",
"docs": "https://conduit-v2.mintlify.app/errors#verification-type-not-reissuable",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}{
"type": "RATE_LIMITED",
"title": "Rate Limited",
"status": 429,
"detail": "Too many requests. This error is returned by three independent checks: the per-organization bucket applied to every authenticated API request; the per-IP bucket applied to unauthenticated traffic before an API key is validated; and the per-IP bucket applied when repeated invalid API keys are submitted from the same address. Honor the Retry-After header (also exposed as retryAfterSeconds in the body) before retrying. Current limits and remaining budget are visible in X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset on rate-limited route responses.",
"resolution": "Sleep until Retry-After seconds have elapsed, then retry. For sustained workloads exceeding the per-organization defaults, request a rate-limit increase through your support contact.",
"docs": "https://conduit-v2.mintlify.app/errors#rate-limited",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z",
"retryAfterSeconds": 3
}{
"type": "INTERNAL_ERROR",
"title": "Internal Error",
"status": 500,
"detail": "An unexpected error occurred while processing your request.",
"resolution": "Retry the request after a brief delay. If the error persists, contact support and include the correlationId from the error response for investigation.",
"docs": "https://conduit-v2.mintlify.app/errors#internal-error",
"instance": "/v2/...",
"correlationId": "req_a1b2c3d4",
"timestamp": "2026-01-15T09:30:00.000Z"
}