diff --git a/docs/notebooks/async-search.ipynb b/docs/notebooks/async-search.ipynb
new file mode 100644
index 0000000..28b675b
--- /dev/null
+++ b/docs/notebooks/async-search.ipynb
@@ -0,0 +1,266 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "d2efdd4c",
+   "metadata": {},
+   "source": [
+    "# Async iteration\n",
+    "\n",
+    "In [rustac v0.8.1](https://github.com/stac-utils/rustac-py/releases/tag/v0.8.1) we added the ability to iterate a search asynchronously.\n",
+    "Let's compare this new capability with the synchronous version via [pystac-client](https://github.com/stac-utils/pystac-client).\n",
+    "\n",
+    "The `copernicus-dem` collection at https://stac.eoapi.dev has 26450 items, which makes it a good single collection test case for iterating over a bunch of things."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "eaf03f73",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "building \"rustac\"\n",
+      "rebuilt and loaded package \"rustac\" in 4.783s\n"
+     ]
+    }
+   ],
+   "source": [
+    "import time\n",
+    "from tqdm.notebook import tqdm\n",
+    "\n",
+    "import rustac\n",
+    "from pystac_client import Client\n",
+    "\n",
+    "url = \"https://stac.eoapi.dev\"\n",
+    "collection = \"copernicus-dem\"\n",
+    "total = 26450"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3c4ecaf4",
+   "metadata": {},
+   "source": [
+    "First, let's try **pystac-client**.\n",
+    "In our testing, it takes almost six minutes to iterate over everything, so we're going to limit things to the first one thousand items."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "fba8e0ca",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "db2cb3a4b8894a88a50358b8422c4f1a",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "  0%|          | 0/1000 [00:00<?, ?it/s]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Got 1000 items in 14.28 seconds\n"
+     ]
+    }
+   ],
+   "source": [
+    "client = Client.open(url)\n",
+    "items = []\n",
+    "progress = tqdm(total=1000)\n",
+    "\n",
+    "start = time.time()\n",
+    "item_search = client.search(collections=[collection])\n",
+    "for item in item_search.items():\n",
+    "    items.append(item)\n",
+    "    progress.update()\n",
+    "    if len(items) >= 1000:\n",
+    "        break\n",
+    "print(f\"Got {len(items)} items in {time.time() - start:.2f} seconds\")\n",
+    "progress.close()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "e63b830f",
+   "metadata": {},
+   "source": [
+    "**rustac** does some asynchronous page pre-fetching under the hood, so it might be faster?\n",
+    "Let's find out."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "211b184a",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "d3bdd8312b004cd3a2b537e429be1e5e",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "  0%|          | 0/1000 [00:00<?, ?it/s]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Got 1000 items in 13.67 seconds\n"
+     ]
+    }
+   ],
+   "source": [
+    "progress = tqdm(total=1000)\n",
+    "items = []\n",
+    "\n",
+    "start = time.time()\n",
+    "search = await rustac.iter_search(url, collections=[collection])\n",
+    "async for item in search:\n",
+    "    items.append(item)\n",
+    "    progress.update()\n",
+    "    if len(items) >= 1000:\n",
+    "        break\n",
+    "print(f\"Got {len(items)} items in {time.time() - start:.2f} seconds\")\n",
+    "progress.close()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a0f4fae8",
+   "metadata": {},
+   "source": [
+    "Okay, that's about the same, which suggests we're mostly being limited by server response time.\n",
+    "If we increase the page size, does that make our async iteration faster?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "8ca810fc",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "2d571afb0b684671b1e3316fbc9716db",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "  0%|          | 0/5000 [00:00<?, ?it/s]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Got 5000 items in 11.09 seconds\n"
+     ]
+    }
+   ],
+   "source": [
+    "client = Client.open(url)\n",
+    "items = []\n",
+    "progress = tqdm(total=5000)\n",
+    "\n",
+    "start = time.time()\n",
+    "item_search = client.search(collections=[collection], limit=500)\n",
+    "for item in item_search.items():\n",
+    "    items.append(item)\n",
+    "    progress.update()\n",
+    "    if len(items) >= 5000:\n",
+    "        break\n",
+    "print(f\"Got {len(items)} items in {time.time() - start:.2f} seconds\")\n",
+    "progress.close()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "e6a00733",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "5c130f3626b64524a62a6daccde79694",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "  0%|          | 0/5000 [00:00<?, ?it/s]"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Got 5000 items in 10.77 seconds\n"
+     ]
+    }
+   ],
+   "source": [
+    "progress = tqdm(total=5000)\n",
+    "items = []\n",
+    "\n",
+    "start = time.time()\n",
+    "search = await rustac.iter_search(url, collections=[collection], limit=500)\n",
+    "async for item in search:\n",
+    "    items.append(item)\n",
+    "    progress.update()\n",
+    "    if len(items) >= 5000:\n",
+    "        break\n",
+    "print(f\"Got {len(items)} items in {time.time() - start:.2f} seconds\")\n",
+    "progress.close()"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "rustac-py",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.13.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/mkdocs.yml b/mkdocs.yml
index 8de9484..22de4e9 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -25,6 +25,7 @@ nav:
       - notebooks/stac-geoparquet.ipynb
       - notebooks/its-live.ipynb
       - notebooks/search.ipynb
+      - notebooks/async-search.ipynb
   - API:
       - api/index.md
       - arrow: api/arrow.md
diff --git a/pyproject.toml b/pyproject.toml
index 5493721..d191b46 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,6 +76,7 @@ docs = [
     "griffe>=1.6.0",
     "humanize>=4.12.1",
     "ipykernel>=6.29.5",
+    "ipywidgets>=8.1.7",
     "jinja2>=3.1.4",
     "mike>=2.1.3",
     "mkdocs-jupyter>=0.25.1",
@@ -83,6 +84,7 @@ docs = [
     "mkdocstrings[python]>=0.27.0",
     "obstore>=0.6.0",
     "pystac-client>=0.8.5",
+    "tqdm>=4.67.1",
 ]
 
 [tool.uv]
diff --git a/uv.lock b/uv.lock
index 7a043e1..3641e6b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -843,6 +843,22 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/d9/33/1f075bf72b0b747cb3288d011319aaf64083cf2efef8354174e3ed4540e2/ipython_pygments_lexers-1.1.1-py3-none-any.whl", hash = "sha256:a9462224a505ade19a605f71f8fa63c2048833ce50abc86768a0d81d876dc81c", size = 8074, upload-time = "2025-01-17T11:24:33.271Z" },
 ]
 
+[[package]]
+name = "ipywidgets"
+version = "8.1.7"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "comm" },
+    { name = "ipython" },
+    { name = "jupyterlab-widgets" },
+    { name = "traitlets" },
+    { name = "widgetsnbextension" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/3e/48/d3dbac45c2814cb73812f98dd6b38bbcc957a4e7bb31d6ea9c03bf94ed87/ipywidgets-8.1.7.tar.gz", hash = "sha256:15f1ac050b9ccbefd45dccfbb2ef6bed0029d8278682d569d71b8dd96bee0376", size = 116721, upload-time = "2025-05-05T12:42:03.489Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/58/6a/9166369a2f092bd286d24e6307de555d63616e8ddb373ebad2b5635ca4cd/ipywidgets-8.1.7-py3-none-any.whl", hash = "sha256:764f2602d25471c213919b8a1997df04bef869251db4ca8efba1b76b1bd9f7bb", size = 139806, upload-time = "2025-05-05T12:41:56.833Z" },
+]
+
 [[package]]
 name = "jedi"
 version = "0.19.2"
@@ -942,6 +958,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/b1/dd/ead9d8ea85bf202d90cc513b533f9c363121c7792674f78e0d8a854b63b4/jupyterlab_pygments-0.3.0-py3-none-any.whl", hash = "sha256:841a89020971da1d8693f1a99997aefc5dc424bb1b251fd6322462a1b8842780", size = 15884, upload-time = "2023-11-23T09:26:34.325Z" },
 ]
 
+[[package]]
+name = "jupyterlab-widgets"
+version = "3.0.15"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/b9/7d/160595ca88ee87ac6ba95d82177d29ec60aaa63821d3077babb22ce031a5/jupyterlab_widgets-3.0.15.tar.gz", hash = "sha256:2920888a0c2922351a9202817957a68c07d99673504d6cd37345299e971bb08b", size = 213149, upload-time = "2025-05-05T12:32:31.004Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/43/6a/ca128561b22b60bd5a0c4ea26649e68c8556b82bc70a0c396eebc977fe86/jupyterlab_widgets-3.0.15-py3-none-any.whl", hash = "sha256:d59023d7d7ef71400d51e6fee9a88867f6e65e10a4201605d2d7f3e8f012a31c", size = 216571, upload-time = "2025-05-05T12:32:29.534Z" },
+]
+
 [[package]]
 name = "jupytext"
 version = "1.17.2"
@@ -2400,6 +2425,7 @@ docs = [
     { name = "griffe" },
     { name = "humanize" },
     { name = "ipykernel" },
+    { name = "ipywidgets" },
     { name = "jinja2" },
     { name = "mike" },
     { name = "mkdocs-jupyter" },
@@ -2407,6 +2433,7 @@ docs = [
     { name = "mkdocstrings", extra = ["python"] },
     { name = "obstore" },
     { name = "pystac-client" },
+    { name = "tqdm" },
 ]
 
 [package.metadata]
@@ -2436,6 +2463,7 @@ docs = [
     { name = "griffe", specifier = ">=1.6.0" },
     { name = "humanize", specifier = ">=4.12.1" },
     { name = "ipykernel", specifier = ">=6.29.5" },
+    { name = "ipywidgets", specifier = ">=8.1.7" },
     { name = "jinja2", specifier = ">=3.1.4" },
     { name = "mike", specifier = ">=2.1.3" },
     { name = "mkdocs-jupyter", specifier = ">=0.25.1" },
@@ -2443,6 +2471,7 @@ docs = [
     { name = "mkdocstrings", extras = ["python"], specifier = ">=0.27.0" },
     { name = "obstore", specifier = ">=0.6.0" },
     { name = "pystac-client", specifier = ">=0.8.5" },
+    { name = "tqdm", specifier = ">=4.67.1" },
 ]
 
 [[package]]
@@ -2572,6 +2601,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/55/a7/535c44c7bea4578e48281d83c615219f3ab19e6abc67625ef637c73987be/tornado-6.5.1-cp39-abi3-win_arm64.whl", hash = "sha256:02420a0eb7bf617257b9935e2b754d1b63897525d8a289c9d65690d580b4dcf7", size = 443596, upload-time = "2025-05-22T18:15:37.433Z" },
 ]
 
+[[package]]
+name = "tqdm"
+version = "4.67.1"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "colorama", marker = "sys_platform == 'win32'" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/a8/4b/29b4ef32e036bb34e4ab51796dd745cdba7ed47ad142a9f4a1eb8e0c744d/tqdm-4.67.1.tar.gz", hash = "sha256:f8aef9c52c08c13a65f30ea34f4e5aac3fd1a34959879d7e59e63027286627f2", size = 169737, upload-time = "2024-11-24T20:12:22.481Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/d0/30/dc54f88dd4a2b5dc8a0279bdd7270e735851848b762aeb1c1184ed1f6b14/tqdm-4.67.1-py3-none-any.whl", hash = "sha256:26445eca388f82e72884e0d580d5464cd801a3ea01e63e5601bdff9ba6a48de2", size = 78540, upload-time = "2024-11-24T20:12:19.698Z" },
+]
+
 [[package]]
 name = "traitlets"
 version = "5.14.3"
@@ -2671,6 +2712,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f4/24/2a3e3df732393fed8b3ebf2ec078f05546de641fe1b667ee316ec1dcf3b7/webencodings-0.5.1-py2.py3-none-any.whl", hash = "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78", size = 11774, upload-time = "2017-04-05T20:21:32.581Z" },
 ]
 
+[[package]]
+name = "widgetsnbextension"
+version = "4.0.14"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/41/53/2e0253c5efd69c9656b1843892052a31c36d37ad42812b5da45c62191f7e/widgetsnbextension-4.0.14.tar.gz", hash = "sha256:a3629b04e3edb893212df862038c7232f62973373869db5084aed739b437b5af", size = 1097428, upload-time = "2025-04-10T13:01:25.628Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/ca/51/5447876806d1088a0f8f71e16542bf350918128d0a69437df26047c8e46f/widgetsnbextension-4.0.14-py3-none-any.whl", hash = "sha256:4875a9eaf72fbf5079dc372a51a9f268fc38d46f767cbf85c43a36da5cb9b575", size = 2196503, upload-time = "2025-04-10T13:01:23.086Z" },
+]
+
 [[package]]
 name = "wrapt"
 version = "1.17.2"