diff --git a/doc/DELETE_xpub.md b/doc/DELETE_xpub.md
index bb31a65..4242772 100644
--- a/doc/DELETE_xpub.md
+++ b/doc/DELETE_xpub.md
@@ -11,7 +11,7 @@ DELETE /xpub/:xpub
 ## Parameters
 * **address** - `string` - The first address of the internal chain for this `xpub`, derivation path `M/1/0`. Use compressed P2PHK address regardless of HD derivation scheme.
 * **signature** - `string` - The base64-encoded signature of the double SHA256 hash of `[varuint length of xpub string, xpub string]`. Signature scheme follows [bitcoinjs-message](https://github.com/bitcoinjs/bitcoinjs-message/blob/master/index.js) with a message prefix matching the [coin type](https://github.com/bitcoinjs/bitcoinjs-lib/blob/v3.1.1/src/networks.js). Use the ECPair associated with the `M/1/0` address to sign.
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Example
 
diff --git a/doc/GET_fees.md b/doc/GET_fees.md
index dcfb5cf..68c86ce 100644
--- a/doc/GET_fees.md
+++ b/doc/GET_fees.md
@@ -8,7 +8,7 @@ GET /fees
 ```
 
 ## Parameters
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 
 ### Examples
diff --git a/doc/GET_header.md b/doc/GET_header.md
index 2b9fd75..782cc3c 100644
--- a/doc/GET_header.md
+++ b/doc/GET_header.md
@@ -9,7 +9,7 @@ GET /header/:hash
 
 ## Parameters
 * **hash** - `string` - The block hash
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Examples
 
diff --git a/doc/GET_multiaddr.md b/doc/GET_multiaddr.md
index d2ae1ee..08b9a96 100644
--- a/doc/GET_multiaddr.md
+++ b/doc/GET_multiaddr.md
@@ -38,7 +38,7 @@ GET /multiaddr?active=...[&new=...][&bip49=...][&bip84=...][&pubkey=...]
 * **bip49** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP49](https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki) and/or new P2WPKH/P2SH loose addresses
 * **bip84** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP84](https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki) and/or new P2WPKH Bech32 loose addresses
 * **pubkey** - `string` - A pipe-separated list of **new** public keys to be derived as P2PKH, P2WPKH/P2SH, P2WPKH Bech32 addresses
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Examples
 
diff --git a/doc/GET_tx.md b/doc/GET_tx.md
index 95f2aeb..8d64f3d 100644
--- a/doc/GET_tx.md
+++ b/doc/GET_tx.md
@@ -11,7 +11,7 @@ GET /tx/:txid?fees=1
 ## Parameters
 * **txid** - `string` - The transaction ID
 * **fees** - `string` - (optional) Scan previous outputs to compute fees
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Examples
 
diff --git a/doc/GET_txs.md b/doc/GET_txs.md
index 0c84e33..8d1337b 100644
--- a/doc/GET_txs.md
+++ b/doc/GET_txs.md
@@ -12,7 +12,7 @@ GET /txs?active=...
 * **active** - `string` - A pipe-separated list of extended public keys and/or loose addresses and/or pubkeys (`xpub1|address1|address2|pubkey1|...`)
 * **page** - `integer` - Index of the requested page (first page is index 0)
 * **count** - `integer` - Number of transactions returned per page
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Examples
 
diff --git a/doc/GET_unspent.md b/doc/GET_unspent.md
index 427960f..1e81758 100644
--- a/doc/GET_unspent.md
+++ b/doc/GET_unspent.md
@@ -36,7 +36,7 @@ GET /unspent?active=...&new=...&bip49=...&bip84=...&pubkey=...
 * **bip49** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP49](https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki) and/or new P2WPKH/P2SH loose addresses
 * **bip84** - `string` - A pipe-separated list of **new** extended public keys to be derived via [BIP84](https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki) and/or new P2WPKH Bech32 loose addresses
 * **pubkey** - `string` - A pipe-separated list of **new** public keys to be derived as P2PKH, P2WPKH/P2SH, P2WPKH Bech32 addresses
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Examples
 
diff --git a/doc/GET_xpub.md b/doc/GET_xpub.md
index d9e1770..e8aa473 100644
--- a/doc/GET_xpub.md
+++ b/doc/GET_xpub.md
@@ -10,7 +10,7 @@ GET /xpub/:xpub
 
 ## Parameters
 * **:xpub** - `string` - The extended public key for the HD Account
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Example
 
diff --git a/doc/POST_auth_login.md b/doc/POST_auth_login.md
index 8a4e750..1899168 100644
--- a/doc/POST_auth_login.md
+++ b/doc/POST_auth_login.md
@@ -1,6 +1,6 @@
 # Authentication
 
-Authenticate to the backend by providing the API key expected by the server. If authentication succeeds, the endpoint returns a json embedding an access token and a refresh token (JSON Web Tokens). The access token must be passed as an argument for all later calls to the backend (account & pushtx REST API + websockets). The refresh token must be passed as an argument for later calls to /auth/refresh allowing to generate a new access token.
+Authenticate to the backend by providing the API key expected by the server. If authentication succeeds, the endpoint returns a json embedding an access token and a refresh token (JSON Web Tokens). The access token must be passed as an argument or in the `Authorization` HTTP header for all later calls to the backend (account & pushtx REST API + websockets). The refresh token must be passed as an argument or in the `Authorization` HTTP header for later calls to /auth/refresh allowing to generate a new access token.
 
 Authentication is activated in /keys/inndex.js configuration file
 
diff --git a/doc/POST_auth_refresh.md b/doc/POST_auth_refresh.md
index 7c86189..62ca803 100644
--- a/doc/POST_auth_refresh.md
+++ b/doc/POST_auth_refresh.md
@@ -1,6 +1,6 @@
 # Refresh the access token
 
-Request a new access token from the backend. A valid refresh token must be passed as an argument.
+Request a new access token from the backend. A valid refresh token must be passed as an argument or through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 
 ```
diff --git a/doc/POST_pushtx.md b/doc/POST_pushtx.md
index b5c6f54..0ead767 100644
--- a/doc/POST_pushtx.md
+++ b/doc/POST_pushtx.md
@@ -8,7 +8,7 @@ POST /pushtx/
 
 ## Parameters
 * **tx** - `hex string` - The raw transaction hex
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Example
 
diff --git a/doc/POST_xpub.md b/doc/POST_xpub.md
index 8a1afc8..2d900a6 100644
--- a/doc/POST_xpub.md
+++ b/doc/POST_xpub.md
@@ -13,7 +13,7 @@ POST /xpub
 * **type** - `string` - Whether this is a newly-created account or one being restored. Recognized values are `'new'` and `'restore'`.
 * **segwit** - `string` (optional) - What type of SegWit support for this xpub, if any. Valid values: `'bip49'` and `'bip84'`
 * **force** - `boolean` (optional) - Force an override of derivation scheme even if xpub is locked. Used for `'restore'` operation.
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Example
 
diff --git a/doc/POST_xpub_lock.md b/doc/POST_xpub_lock.md
index b74219a..8a61a05 100644
--- a/doc/POST_xpub_lock.md
+++ b/doc/POST_xpub_lock.md
@@ -10,7 +10,7 @@ POST /xpub/:xpub/lock
 * **address** - `string` - The first address of the internal chain for this `xpub`, derivation path `M/1/0`. Use compressed P2PHK address regardless of HD derivation scheme.
 * **message** - `string` - Either `"lock"` or `"unlock"`
 * **signature** - `string` - The base64-encoded signature of the double SHA256 hash of `[varuint length of message string, message string]`. Signature scheme follows [bitcoinjs-message](https://github.com/bitcoinjs/bitcoinjs-message/blob/master/index.js) with a message prefix matching the [coin type](https://github.com/bitcoinjs/bitcoinjs-lib/blob/v3.1.1/src/networks.js). Use the ECPair associated with the `M/1/0` address to sign.
-* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated.
+* **at** - `string` (optional) - Access Token (json web token). Required if authentication is activated. Alternatively, the access token can be passed through the `Authorization` HTTP header (with the `Bearer` scheme).
 
 ### Example
 
diff --git a/lib/auth/authorizations-manager.js b/lib/auth/authorizations-manager.js
index c3e1f71..82cbc41 100644
--- a/lib/auth/authorizations-manager.js
+++ b/lib/auth/authorizations-manager.js
@@ -220,6 +220,10 @@ class AuthorizationsManager {
    * @returns {Object} returns the json web token
    */
   _extractAccessToken(req) {
+    const token = this._extractBearerAuthorizationHeader(req)
+    if (token)
+      return token
+
     if (req.body && req.body.at && validator.isJWT(req.body.at))
       return req.body.at
 
@@ -269,6 +273,10 @@ class AuthorizationsManager {
    * @returns {Object} returns the json web token
    */
   _extractRefreshToken(req) {
+    const token = this._extractBearerAuthorizationHeader(req)
+    if (token)
+      return token
+
     if (req.body && req.body.rt && validator.isJWT(req.body.rt))
       return req.body.rt
 
@@ -291,6 +299,25 @@ class AuthorizationsManager {
 
     return payload
   }
+
+  /**
+   * Extract a bearer JWT auth token
+   * from the Authorization HTTP header
+   * Returns null if it doesn't exist or is an onvalid JWT
+   * @param {Object} req - http request object
+   * @returns {Object} returns the json web token
+   */
+  _extractBearerAuthorizationHeader(req) {
+    if (req.get('Authorization')) {
+      const authHeader = req.get('Authorization')
+      if (authHeader.startsWith('Bearer ')) {
+        const token = authHeader.substring(7)
+        if (validator.isJWT(token))
+          return token
+      }        
+    }
+    return null
+  }
 }
 
 module.exports = new AuthorizationsManager()