Re-verify a Subject

POST

verification-subjects

{id}

verifications

Re-verify a subject

curl --request POST \
  --url https://api.antonpayments.com/v1/verification-subjects/{id}/verifications \
  --header 'Authorization: Bearer <token>' \
  --header 'DPoP: <api-key>' \
  --header 'Idempotency-Key: <idempotency-key>'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    DPoP: '<api-key>'
  }
};

fetch('https://api.antonpayments.com/v1/verification-subjects/{id}/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.antonpayments.com/v1/verification-subjects/{id}/verifications",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "DPoP: <api-key>",
    "Idempotency-Key: <idempotency-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://api.antonpayments.com/v1/verification-subjects/{id}/verifications"

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("DPoP", "<api-key>")

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

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

	fmt.Println(string(body))

}

{
  "data": {
    "id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "checks": [
      {
        "type": "<string>",
        "label": "<string>",
        "detail": "<string>"
      }
    ],
    "completed_at": "2023-11-07T05:31:56Z",
    "link_expires_at": "2023-11-07T05:31:56Z",
    "screening": {
      "lists_checked": [
        "<string>"
      ],
      "evaluation_id": "<string>",
      "detail": "<string>"
    },
    "ubos": [
      {
        "id": "<string>",
        "display_name": "<string>",
        "email": "<string>",
        "ownership_pct": 123,
        "completed_at": "2023-11-07T05:31:56Z"
      }
    ],
    "hosted_link": "<string>"
  }
}

Authorizations

Authorization

string

header

required

OAuth 2.0 client_credentials grant (RFC 6749 §4.4) bound to a DPoP keypair (RFC 9449).

Flow (every authenticated /v1 call requires both an access token AND a fresh per-request DPoP proof):

Register a credential via the merchant portal. Anton issues a client_id (ant_oc_<env>_<32hex>) and a client_secret (ant_ocs_<env>_<48hex>, shown ONCE). The portal generates an ES256 or Ed25519 DPoP keypair in your browser; you store the private half.
Mint an access token: POST /oauth/token with Authorization: Basic <client_id:client_secret> and Content-Type: application/x-www-form-urlencoded. Body: grant_type=client_credentials. A DPoP header carrying a proof signed for the token endpoint is required (no ath claim on this proof).
Use the token: send Authorization: DPoP <access_token> plus a fresh DPoP: <proof> header on every /v1 request. The proof JWT MUST carry htm (request method), htu (request URL, no query/fragment), iat (within ±60s), jti (unique within 5 min), and ath (SHA-256 of the access token, base64url).

Tokens expire in 1 hour in production / staging and 8 hours in sandbox. There are no refresh tokens — call /oauth/token again with your secret. Anton's public signing key is published at /.well-known/jwks.json.

OpenAPI 3.0 has no native DPoP scheme; this declaration plus dpopHeader together convey both the access-token Authorization and the per-request proof header.

DPoP

string

header

required

Per-request DPoP proof JWT (RFC 9449). MUST accompany the Authorization: DPoP <access_token> header on every protected operation. The proof is signed by the merchant's private DPoP key and carries htm, htu, iat, jti, and ath claims.

Headers

Idempotency-Key

string

required

Unique key identifying this operation. Sending the same key twice returns the original response instead of creating a duplicate. Keys are retained for 24 hours.

Maximum string length: 255

Path Parameters

string

required

Verification subject ID.

Pattern: ^vsub_[a-zA-Z0-9]+$

Response

New attempt opened.

data

object

required

One verification attempt. hosted_link is secret-once: present only on the response that minted it (create / resend / regenerate / re-verify) and never on a read.

Show child attributes

Resend a Verification LinkMints a fresh one-time hosted link for the **same attempt** and re-delivers it to the subject's email when one is on file. Use when the previous link expired unused or never arrived. Fails with `422` on attempts in a terminal state (approved, declined, expired, revoked) — open a new attempt via re-verify instead.

⌘I

Re-verify a subject

curl --request POST \
  --url https://api.antonpayments.com/v1/verification-subjects/{id}/verifications \
  --header 'Authorization: Bearer <token>' \
  --header 'DPoP: <api-key>' \
  --header 'Idempotency-Key: <idempotency-key>'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    DPoP: '<api-key>'
  }
};

fetch('https://api.antonpayments.com/v1/verification-subjects/{id}/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.antonpayments.com/v1/verification-subjects/{id}/verifications",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "DPoP: <api-key>",
    "Idempotency-Key: <idempotency-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://api.antonpayments.com/v1/verification-subjects/{id}/verifications"

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("DPoP", "<api-key>")

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

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

	fmt.Println(string(body))

}

{
  "data": {
    "id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "checks": [
      {
        "type": "<string>",
        "label": "<string>",
        "detail": "<string>"
      }
    ],
    "completed_at": "2023-11-07T05:31:56Z",
    "link_expires_at": "2023-11-07T05:31:56Z",
    "screening": {
      "lists_checked": [
        "<string>"
      ],
      "evaluation_id": "<string>",
      "detail": "<string>"
    },
    "ubos": [
      {
        "id": "<string>",
        "display_name": "<string>",
        "email": "<string>",
        "ownership_pct": 123,
        "completed_at": "2023-11-07T05:31:56Z"
      }
    ],
    "hosted_link": "<string>"
  }
}

Overview

Cross-Cutting

Reference Data

Beneficiaries

Instruments

Intelligence

Verifications

Payouts

Batches

Balances

Accounts

Webhooks

Pricing

FX

Corridors

Sandbox

Authorizations

Headers

Path Parameters

Response