diff --git a/lib/node.js b/lib/node.js
index 5728a3d..34f36ab 100644
--- a/lib/node.js
+++ b/lib/node.js
@@ -146,6 +146,17 @@ class NodeClient extends Client {
     return this.get(`/block/${block}`);
   }
 
+  /**
+   * Retrieve a block header.
+   * @param {Hash|Number} block
+   * @returns {Promise}
+   */
+
+  getBlockHeader(block) {
+    assert(typeof block === 'string' || typeof block === 'number');
+    return this.get(`/header/${block}`);
+  }
+
   /**
    * Add a transaction to the mempool and broadcast it.
    * @param {TX} tx