> For a complete page index, fetch https://docs.transak.com/llms.txt # Biometrics details POST https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics Content-Type: application/json Submits **selfie** and **liveness** media as base64-encoded payloads for the KYC Reliance biometric step. Complete earlier steps (identity and document submission) per your requirements flow before calling this endpoint. Reference: https://docs.transak.com/api/whitelabel/kyc-reliance-api/kyc-reliance-biometrics-details ## OpenAPI Specification ```yaml openapi: 3.1.0 info: title: whitelabel-api version: 1.0.0 paths: /kyc/v2/reliance/biometrics: post: operationId: kyc-reliance-biometrics-details summary: Biometrics details description: >- Submits **selfie** and **liveness** media as base64-encoded payloads for the KYC Reliance biometric step. Complete earlier steps (identity and document submission) per your requirements flow before calling this endpoint. tags: - subpackage_kycRelianceApi parameters: - name: x-access-token in: header description: >- Your Partner Access Token. Please refer [here](/guides/how-to-create-partner-access-token) for a tutorial on generating your access token. Note: This is applicable only for [Auth Reliance Flows](/features/auth-reliance) required: false schema: type: string - name: x-user-identifier in: header description: >- our authenticated user Email Id address. Note: This is applicable only for [Auth Reliance Flows](/features/auth-reliance) required: false schema: type: string - name: authorization in: header description: >- Authorization token is the accessToken received from the API -` api/v2/auth/verify` Note: This is not applicable for [Auth Reliance Flows](/features/auth-reliance) required: false schema: type: string responses: '200': description: Success — biometrics processed content: application/json: schema: $ref: '#/components/schemas/KycRelianceSuccessResponse' '400': description: Bad Request — validation or processing failure content: application/json: schema: $ref: >- #/components/schemas/Kyc-reliance-biometrics-detailsRequestBadRequestError '401': description: Unauthorized — invalid token or user not onboarded content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' '404': description: Not Found — KYC request does not exist for this user/session content: application/json: schema: $ref: '#/components/schemas/ErrorEnvelope' requestBody: content: application/json: schema: $ref: '#/components/schemas/BiometricsRequest' servers: - url: https://api-gateway-stg.transak.com components: schemas: BiometricsRequest: type: object properties: selfie: type: string description: >- Base64-encoded selfie image (e.g. `data:image/jpeg;base64,...`). Maximum size approximately **5 MB** after decoding. liveness: type: string description: >- Base64-encoded liveness video (e.g. `data:video/mp4;base64,...`). Maximum size approximately **20 MB** after decoding. required: - selfie - liveness title: BiometricsRequest KycRelianceSuccessResponseData: type: object properties: status: type: string description: >- Step or flow status (e.g. `INITIALIZED` after identity or document steps, `SUBMITTED` after biometrics, or terminal outcomes such as `DONE` / `FAILED` as returned by the API). required: - status title: KycRelianceSuccessResponseData KycRelianceSuccessResponse: type: object properties: data: $ref: '#/components/schemas/KycRelianceSuccessResponseData' required: - data title: KycRelianceSuccessResponse ErrorEnvelopeError: type: object properties: statusCode: type: integer message: type: string errorCode: type: integer required: - statusCode - message title: ErrorEnvelopeError ErrorEnvelope: type: object properties: error: $ref: '#/components/schemas/ErrorEnvelopeError' required: - error title: ErrorEnvelope KycRelianceFlatError: type: object properties: statusCode: type: integer errorCode: type: integer message: type: string required: - statusCode - errorCode - message title: KycRelianceFlatError Kyc-reliance-biometrics-detailsRequestBadRequestError: oneOf: - $ref: '#/components/schemas/ErrorEnvelope' - $ref: '#/components/schemas/KycRelianceFlatError' title: Kyc-reliance-biometrics-detailsRequestBadRequestError ``` ## SDK Code Examples ```python Success import requests url = "https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics" payload = { "selfie": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL", "liveness": "data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA" } headers = {"Content-Type": "application/json"} response = requests.post(url, json=payload, headers=headers) print(response.json()) ``` ```javascript Success const url = 'https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics'; const options = { method: 'POST', headers: {'Content-Type': 'application/json'}, body: '{"selfie":"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL","liveness":"data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA"}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go Success package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics" payload := strings.NewReader("{\n \"selfie\": \"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL\",\n \"liveness\": \"data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA\"\n}") req, _ := http.NewRequest("POST", url, payload) req.Header.Add("Content-Type", "application/json") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` ```ruby Success require 'uri' require 'net/http' url = URI("https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Post.new(url) request["Content-Type"] = 'application/json' request.body = "{\n \"selfie\": \"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL\",\n \"liveness\": \"data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA\"\n}" response = http.request(request) puts response.read_body ``` ```java Success import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.post("https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics") .header("Content-Type", "application/json") .body("{\n \"selfie\": \"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL\",\n \"liveness\": \"data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA\"\n}") .asString(); ``` ```php Success request('POST', 'https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics', [ 'body' => '{ "selfie": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL", "liveness": "data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA" }', 'headers' => [ 'Content-Type' => 'application/json', ], ]); echo $response->getBody(); ``` ```csharp Success using RestSharp; var client = new RestClient("https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics"); var request = new RestRequest(Method.POST); request.AddHeader("Content-Type", "application/json"); request.AddParameter("application/json", "{\n \"selfie\": \"data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL\",\n \"liveness\": \"data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA\"\n}", ParameterType.RequestBody); IRestResponse response = client.Execute(request); ``` ```swift Success import Foundation let headers = ["Content-Type": "application/json"] let parameters = [ "selfie": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEASABIAAD/2wCEAAkGBxISEhUTEhIVFhUXFxgXFxgYFxcXFxgXFxgXFxgXFxgYHSggGBolHRcVITEhJSkrLi4uFx8zODMtNygtLisBCgoKDg0OGxAQGy0lICYtLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tL", "liveness": "data:video/mp4;base64,AAAAHGZ0eXBtcDQyAAAAAGlzb21tcDQyAAACAGlzb21pc28ybXA0MQAAABNtb292AAAAbG12aGQAAAAMAAAD6AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AAAB9AA" ] as [String : Any] let postData = JSONSerialization.data(withJSONObject: parameters, options: []) let request = NSMutableURLRequest(url: NSURL(string: "https://api-gateway-stg.transak.com/kyc/v2/reliance/biometrics")! as URL, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10.0) request.httpMethod = "POST" request.allHTTPHeaderFields = headers request.httpBody = postData as Data let session = URLSession.shared let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in if (error != nil) { print(error as Any) } else { let httpResponse = response as? HTTPURLResponse print(httpResponse) } }) dataTask.resume() ```