diff --git a/types/trezor-connect/index.d.ts b/types/trezor-connect/index.d.ts
new file mode 100644
index 0000000000..c9c5fb258d
--- /dev/null
+++ b/types/trezor-connect/index.d.ts
@@ -0,0 +1,376 @@
+// Type definitions for trezor-connect 6.0
+// Project: https://github.com/trezor/connect
+// Definitions by: Federico Bond <https://github.com/federicobond>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
+
+interface Error {
+  success: false;
+  payload: { error: string };
+}
+
+interface Success<T> {
+  id: number;
+  success: true;
+  payload: T;
+}
+
+export type ResponseMessage<T> = Error | Success<T>;
+
+export interface Message {
+  message: string;
+}
+
+export interface Bundle<T> {
+  bundle: T[];
+}
+
+interface CommonParams {
+  device?: {
+    path: string
+    state?: string
+    instance?: number
+  };
+  useEmptyPassphrase?: boolean;
+  allowSeedlessDevice?: boolean;
+  keepSession?: boolean;
+}
+
+export interface GetPublicKeyParams extends CommonParams {
+  path: string;
+  coin?: string;
+  crossChain?: boolean;
+}
+
+export interface PublicKey {
+  path: number[]; // hardended path
+  serializedPath: string; // serialized path
+  xpub: string; // xpub in legacy format
+  xpubSegwit?: string; // optional for segwit accounts: xpub in segwit format
+  chainCode: string; // BIP32 serialization format
+  childNum: number; // BIP32 serialization format
+  publicKey: string; // BIP32 serialization format
+  fingerprint: number; // BIP32 serialization format
+  depth: number; // BIP32 serialization format
+}
+
+export interface GetAccountInfoParams extends CommonParams {
+  path?: number[];  // NOTE:
+  xpub?: string;    // if both these fields are missing, the user will select an account
+  coin: string;
+}
+
+export interface AccountInfo {
+  id: number;
+
+  path: number[];
+  serializedPath: string;
+  xpub: string; // serialized HD public key. Despite the name, this may be `ypub` for segWit.
+
+  balance: number;
+  confirmed: number;
+
+  // These fields are returned, presumably, to save further calls when the use case requires
+  // a usable address:
+  address: string;
+  addressIndex: number;
+  addressPath: number[];
+  addressSerializedPath: string;
+}
+
+export interface Features {
+  vendor: string;
+  major_version: number;
+  minor_version: number;
+  patch_version: number;
+  bootloader_mode: boolean | null;
+  device_id: string;
+  pin_protection: boolean;
+  passphrase_protection: boolean;
+  language: string | null;
+  label: string | null;
+  initialized: true;
+  revision: string;
+  bootloader_hash: string;
+  imported: boolean;
+  pin_cached: boolean;
+  passphrase_cached: boolean;
+  firmware_present: boolean | null;
+  needs_backup: false;
+  flags: number;
+  model: string;
+  fw_major: number;
+  fw_minor: number;
+  fw_patch: number;
+  fw_vendor: string;
+  fw_vendor_keys: string;
+  unfinished_backup: boolean;
+  no_backup: boolean;
+}
+
+interface LoginChallenge {
+  challengeHidden: string;
+  challengeVisual: string;
+}
+
+export type RequestLoginParams = CommonParams &
+  { callback: () => LoginChallenge } | LoginChallenge;
+
+export interface LoginDetails {
+    address: string;
+    publicKey: string;
+    signature: string;
+}
+
+export interface CipherKeyValueParams extends CommonParams {
+  path: string | number[];
+  key?: string;
+  value?: string;
+  askOnEncrypt?: true;
+  askOnDecrypt?: true;
+}
+
+export interface CipherKeyValue extends CommonParams {
+  value: string;
+}
+
+export interface ResetDeviceParams extends CommonParams {
+  strength?: number;
+  label?: string;
+  u2fCounter?: number;
+  pinProtection?: boolean;
+  passphraseProtection?: boolean;
+  skipBackup?: boolean;
+  noBackup?: boolean;
+}
+
+export interface GetAddressParams extends CommonParams {
+  path: string | number[];
+  showOnTrezor?: boolean;
+  coin?: string;
+  crossChain?: boolean;
+}
+
+export interface Address {
+  address: string;
+  path: number[];
+  serializedPath: string;
+}
+
+export interface ComposeTransactionParams extends CommonParams {
+  outputs: Output[];
+  coin: string;
+  push?: boolean;
+}
+
+export interface Transaction {
+  signatures: string[];  // signer signatures
+  serializedTx: string;  // serialized transaction
+  txid?: string;         // blockchain transaction id
+}
+
+export interface VerifyMessageParams extends CommonParams {
+  address: string;
+  message: string;
+  signature: string;
+  coin: string;
+}
+
+export interface SignMessageParams extends CommonParams {
+  path: string | number[];
+  message: string;
+  coin?: string;
+}
+
+export interface SignedMessage {
+  address: string;    // signer address
+  signature: string;  // signature in base64 format
+}
+
+export type DeviceStatus = 'available' | 'occupied' | 'used';
+
+export type DeviceMode = 'normal' | 'bootloader' | 'initialize' | 'seedless';
+
+export type DeviceFirmwareStatus = 'valid' | 'outdated' | 'required';
+
+export type Device = {
+    type: 'acquired',
+    path: string,
+    label: string,
+    firmware: DeviceFirmwareStatus,
+    status: DeviceStatus,
+    mode: DeviceMode,
+    state: string | null,
+    features: Features,
+} | {
+    type: 'unacquired',
+    path: string,
+    label: string,
+} | {
+    type: 'unreadable',
+    path: string,
+    label: string,
+};
+
+export interface SignedTransaction {
+  signatures: string[];
+  serializedTx: string;
+  txId?: string;
+}
+
+export interface Settings {
+  debug: boolean | { [k: string]: boolean };
+  configSrc?: string; // constant
+  origin?: string;
+  hostLabel?: string;
+  hostIcon?: string;
+  priority?: number;
+  trustedHost?: boolean;
+  connectSrc?: string;
+  iframeSrc?: string;
+  popup?: boolean;
+  popupSrc?: string;
+  webusbSrc?: string;
+  transportReconnect?: boolean;
+  webusb?: boolean;
+  pendingTransportEvent?: boolean;
+  supportedBrowser?: boolean;
+  extension?: string;
+}
+
+export interface Input {
+  address_n: number[];
+  prev_index: number;
+  prev_hash: string;
+  amount: string;
+  script_type: string;
+}
+
+export interface RegularOutput {
+  address: string;
+  amount: string;
+  script_type: string;
+}
+
+export interface SendMaxOutput {
+  type: 'send-max';
+  address: string;
+}
+
+export interface OpReturnOutput {
+  type: 'opreturn';
+  dataHex: string;
+}
+
+export type Output = RegularOutput | SendMaxOutput | OpReturnOutput;
+
+export interface SignTransactionParams extends CommonParams {
+  inputs: Input[];
+  outputs: Output[];
+  coin: string;
+  push?: boolean;
+}
+
+export interface PushTransactionParams extends CommonParams {
+  tx: string;
+  coin: string;
+}
+
+export interface TransactionID {
+  txid: string;
+}
+
+export namespace TrezorConnect {
+  /**
+   * Initializes TrezorConnect.
+   */
+  function init(settings: Settings): void;
+
+  /**
+   * Retrieves BIP32 extended public derived by given BIP32 path.
+   * User is presented with a description of the requested key and asked to
+   * confirm the export.
+   */
+  function getPublicKey(params: GetPublicKeyParams): Promise<ResponseMessage<PublicKey>>;
+  function getPublicKey(params: Bundle<GetPublicKeyParams>): Promise<ResponseMessage<PublicKey[]>>;
+
+  /**
+   * Challenge-response authentication via Trezor.
+   * To protect against replay attacks you should use a server-side generated
+   * and randomized challengeHidden for every attempt. You can also provide a
+   * visual challenge that will be shown on the device.
+   */
+  function requestLogin(params: RequestLoginParams): Promise<LoginDetails>;
+
+  /**
+   * Retrieves the set of features associated with the device.
+   */
+  function getFeatures(params?: CommonParams): Promise<ResponseMessage<Features>>;
+
+  /**
+   * Asks device to encrypt value using the private key derived by given BIP32
+   * path and the given key. IV is always computed automatically.
+   */
+  function cipherKeyValue(params: CipherKeyValueParams): Promise<ResponseMessage<CipherKeyValue>>;
+  function cipherKeyValue(params: Bundle<CipherKeyValueParams>): Promise<ResponseMessage<CipherKeyValue[]>>;
+
+  /**
+   * Resets device to factory defaults and removes all private data.
+   */
+  function wipeDevice(): Promise<ResponseMessage<Message>>;
+
+  /**
+   * Performs device setup and generates a new seed.
+   */
+  function resetDevice(params: ResetDeviceParams): Promise<ResponseMessage<Message>>;
+
+  /**
+   * Display requested address derived by given BIP32 path on device and
+   * returns it to caller. User is asked to confirm the export on Trezor.
+   */
+  function getAddress(params: GetAddressParams): Promise<ResponseMessage<Address>>;
+  function getAddress(params: Bundle<GetAddressParams>): Promise<ResponseMessage<Address[]>>;
+
+  /**
+   * Gets an info of specified account.
+   */
+  function getAccountInfo(params: GetAccountInfoParams): Promise<ResponseMessage<AccountInfo>>;
+
+  /**
+   * Requests a payment from the users wallet to a set of given outputs.
+   * Internally a BIP-0044 account discovery is performed and user is presented
+   * with a list of accounts. After account selection user is presented with
+   * list of fee selection. After selecting a fee transaction is signed and
+   * returned in hexadecimal format. Change output is added automatically, if
+   * needed.
+   */
+  function composeTransaction(params: ComposeTransactionParams): Promise<ResponseMessage<Transaction>>;
+
+  /**
+   * Asks device to sign given inputs and outputs of pre-composed transaction.
+   * User is asked to confirm all transaction details on Trezor.
+   */
+  function signTransaction(params: SignTransactionParams): Promise<ResponseMessage<SignedTransaction>>;
+
+  /**
+   * Broadcasts the transaction to the selected network.
+   */
+  function pushTransaction(params: PushTransactionParams): Promise<ResponseMessage<TransactionID>>;
+
+  /**
+   * Asks device to sign a message using the private key derived by given BIP32
+   * path.
+   */
+  function signMessage(params: SignMessageParams): Promise<ResponseMessage<SignedMessage>>;
+
+  /**
+   * Asks device to verify a message using the signer address and signature.
+   */
+  function verifyMessage(params: VerifyMessageParams): Promise<ResponseMessage<Message>>;
+
+  function dispose(): void;
+
+  function cancel(): void;
+}
+
+export default TrezorConnect;
diff --git a/types/trezor-connect/trezor-connect-tests.ts b/types/trezor-connect/trezor-connect-tests.ts
new file mode 100644
index 0000000000..99e776fed6
--- /dev/null
+++ b/types/trezor-connect/trezor-connect-tests.ts
@@ -0,0 +1,26 @@
+import TrezorConnect from 'trezor-connect';
+
+async function test() {
+    await TrezorConnect.getPublicKey({
+        path: "m/49'/0'/4'",
+        coin: "btc"
+    });
+
+    const res = await TrezorConnect.getPublicKey({
+        bundle: [
+            { path: "m/49'/0'/0'" }, // account 1
+            { path: "m/49'/0'/1'" }, // account 2
+            { path: "m/49'/0'/2'" }  // account 3
+        ]
+    });
+    if (res.success) {
+        res.payload[0].xpub;
+    }
+
+    const features = await TrezorConnect.getFeatures();
+    if (features.success) {
+        features.payload.label;
+    }
+
+    TrezorConnect.cancel();
+}
diff --git a/types/trezor-connect/tsconfig.json b/types/trezor-connect/tsconfig.json
new file mode 100644
index 0000000000..5f97d20f89
--- /dev/null
+++ b/types/trezor-connect/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "trezor-connect-tests.ts"
+    ]
+}
diff --git a/types/trezor-connect/tslint.json b/types/trezor-connect/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/trezor-connect/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }