---
title: "Ledger (@ledgerhq)"
description: "Trusted hardware for blockchain applications"
account: "ledgerhq"
---

# Ledger

Trusted hardware for blockchain applications

## APIs

7 public APIs with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/ledgerhq/feed.md

- [Card Provider Server](https://skmtc.dev/ledgerhq/apis/card-provider-server.md): Card payments: create sell transactions and read or update their status
- [Earn Provider Server](https://skmtc.dev/ledgerhq/apis/earn-provider-server.md): Staking: query network stakes and grow-related earnings data
- [Sell Provider Server](https://skmtc.dev/ledgerhq/apis/sell-provider-server.md): Sell flow: request quotes, start crypto sell transactions, track their status
- [Buy Provider Server](https://skmtc.dev/ledgerhq/apis/buy-provider-server.md): Crypto purchases: get quotes, supported currencies and a redirect URL to complete buys
- [Partner Swap Service](https://skmtc.dev/ledgerhq/apis/partner-swap-service.md): Crypto exchange: list currencies and pairs, get quotes, run fixed or float swaps, track status
- [Vault API](https://skmtc.dev/ledgerhq/apis/vault-api.md): Custody and money movement: accounts, transactions, settlements, currencies, entities and PKI certificates
- [Speculos API](https://skmtc.dev/ledgerhq/apis/speculos-api.md): Emulator: send APDUs, press buttons, touch the screen, read events and screenshots