---
title: "Transmit APDU and return device response"
method: POST
path: "/apdu"
---

# Transmit APDU and return device response

`POST /apdu`

## Request body

- Apdu
  - `data` string, required — APDU data, in hexadecimal.

## Response `200`

Device response to the APDU command

- Apdu
  - `data` string, required — APDU data, in hexadecimal.

---

[API](https://skmtc.net/ledgerhq/apis/speculos-api.md) · [All operations](https://skmtc.net/ledgerhq/apis/speculos-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ledgerhq/speculos-api/revisions/26e97bf6713a/schema)