diff --git a/README.md b/README.md
index d78de27..44c65e0 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Each returning item has the following field:
 
 ### BGPKIT Broker
 
-Origianl Rust version BGPKIT Broker code available at: <https://github.com/bgpkit/bgpkit-broker>
+Original Rust version BGPKIT Broker code available at: <https://github.com/bgpkit/bgpkit-broker>
 
 Example:
 ```python
@@ -80,4 +80,42 @@ Available fields:
   - `collector`: collector name, e.g. `rrc00` or `route-views2`
   - `data_type`: `rib` or `update`
   - `order`: order by timestamp, `asc` or `desc`, default
+  
+### BGPKIT ROAS Lookup
 
+BGPKIT ROAS lookup API provides lookup for historical RPKI ROAS data lookup. The following example shows a query that
+asks for all the validated ROA payload for RIPE NCC on the date of `2018-01-01`.
+
+```python
+import bgpkit
+roas = bgpkit.Roas()
+data = roas.query(debug=True, asn=3333, date="2018-01-01")
+for entry in data:
+    print(entry)
+assert len(data) == 10
+```
+
+``` 
+{'tal': 'ripencc', 'prefix': '193.0.0.0/21', 'asn': 3333, 'max_len': 21, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.10.0/23', 'asn': 3333, 'max_len': 23, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.12.0/23', 'asn': 3333, 'max_len': 23, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.18.0/23', 'asn': 3333, 'max_len': 23, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.20.0/23', 'asn': 3333, 'max_len': 23, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.22.0/23', 'asn': 3333, 'max_len': 23, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '193.0.24.0/22', 'asn': 3333, 'max_len': 26, 'date_ranges': [['2017-01-14', '2018-12-27'], ['2019-01-03', '2019-06-24']]}
+{'tal': 'ripencc', 'prefix': '193.0.24.0/24', 'asn': 3333, 'max_len': 24, 'date_ranges': [['2017-02-25', '2018-12-27'], ['2019-01-03', '2019-06-24']]}
+{'tal': 'ripencc', 'prefix': '2001:610:240::/42', 'asn': 3333, 'max_len': 42, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+{'tal': 'ripencc', 'prefix': '2001:67c:2e8::/48', 'asn': 3333, 'max_len': 48, 'date_ranges': [['2015-03-10', '2016-01-26'], ['2016-01-30', '2018-12-27'], ['2019-01-03', '2019-10-21'], ['2019-10-23', '2020-02-23'], ['2020-02-25', '2020-04-05'], ['2020-04-07', '2020-08-02'], ['2020-08-04', '2021-04-21'], ['2021-04-23', '2021-04-24'], ['2021-04-28', '2022-02-26']]}
+```
+
+Available query fields:
+
+- `Roas()`
+  - `api_url`: the base URL for the BGPKIT ROAS instance. Default: `https://api.roas.bgpkit.com`
+- `query()`
+  - `prefix`: prefix to query in `str`
+  - `asn`: AS number to query in `int`
+  - `tal`: trust anchor to query in `str`, available values: `ripencc`, `arin`, `apnic`, `afrinic`, `lacnic`
+  - `date`: date to query, format: `YYYY-MM-DD`, e.g. `2022-01-01`
+  - `max_len`: filter results to only VRP's with specific max length
+  - `debug`: boolean toggle to display debug information, default `False`
diff --git a/bgpkit/__init__.py b/bgpkit/__init__.py
index 790dd22..45e38e5 100644
--- a/bgpkit/__init__.py
+++ b/bgpkit/__init__.py
@@ -1,2 +1,3 @@
 from .bgpkit_parser import Parser
 from .bgpkit_broker import Broker
+from .bgpkit_roas import Roas
diff --git a/bgpkit/bgpkit_broker.py b/bgpkit/bgpkit_broker.py
index 10aba41..835bb29 100644
--- a/bgpkit/bgpkit_broker.py
+++ b/bgpkit/bgpkit_broker.py
@@ -2,6 +2,7 @@
 
 import requests as requests
 
+
 def check_type(value: any, ty: type) -> bool:
     try:
         ty(value)
@@ -20,7 +21,7 @@ class BrokerItem:
 
 class Broker:
 
-    def __init__(self, api_url: str = "https://api.broker.bgpkit.com/v1", page_size: int=100):
+    def __init__(self, api_url: str = "https://api.broker.bgpkit.com/v1", page_size: int = 100):
         self.base_url = api_url.strip()
         self.page_size = int(page_size)
 
diff --git a/bgpkit/bgpkit_roas.py b/bgpkit/bgpkit_roas.py
new file mode 100644
index 0000000..618fcdc
--- /dev/null
+++ b/bgpkit/bgpkit_roas.py
@@ -0,0 +1,80 @@
+from dataclasses import dataclass
+from typing import Optional, List
+
+import requests as requests
+
+
+def check_type(value: any, ty: type) -> bool:
+    try:
+        ty(value)
+        return True
+    except ValueError:
+        raise ValueError("invalid option input")
+
+
+@dataclass
+class RoasItem:
+    prefix: str
+    asn: int
+    tal: str
+    date_ranges: List[List[str]]
+
+
+@dataclass
+class RoasRes:
+    limit: int
+    count: int
+    data: List[RoasItem]
+    next_page_num: Optional[int]
+    next_page: Optional[str]
+    error: Optional[str]
+
+
+class Roas:
+
+    def __init__(self, api_url: str = "https://api.roas.bgpkit.com"):
+        self.base_url = api_url.strip()
+
+    def query(self,
+              prefix: str = None,
+              asn: int = None,
+              tal: str = None,
+              date: str = None,
+              max_len: int = None,
+              debug: bool = False,
+              ) -> [RoasItem]:
+
+        if not (prefix or asn or tal or date or max_len):
+            print("ERROR: must specify at least one query parameter: prefix, asn, tal, date, max_len")
+            return []
+
+        params = []
+        if prefix:
+            check_type(prefix, str)
+            params.append(f"prefix={prefix}")
+        if asn:
+            check_type(asn, int)
+            params.append(f"asn={asn}")
+        if tal:
+            check_type(tal, str)
+            params.append(f"tal={tal}")
+        if date:
+            check_type(date, str)
+            params.append(f"date={date}")
+        if max_len:
+            check_type(max_len, int)
+            params.append(f"max_len={max_len}")
+
+        api_url = f"{self.base_url}/lookup?" + "&".join(params)
+        data_items = []
+        if debug:
+            print(api_url)
+        res = RoasRes(**requests.get(api_url).json())
+        while res.data:
+            data_items.extend(res.data)
+            if res.next_page:
+                res = RoasRes(**requests.get(res.next_page).json())
+            else:
+                break
+
+        return data_items
diff --git a/bgpkit/test_integration.py b/bgpkit/test_integration.py
index 541be7a..76ca1f7 100644
--- a/bgpkit/test_integration.py
+++ b/bgpkit/test_integration.py
@@ -13,11 +13,20 @@ def test_parser(self):
 
     def test_broker(self):
         broker = bgpkit.Broker()
-        items = broker.query(start_ts=1634693400, end_ts=1634693400)
+        items = broker.query(start_ts=1643760000, end_ts=1643761200)
         for item in items:
             print(item)
         print(len(items))
         assert len(items) == 58
 
-        elems = bgpkit.Parser(items[0].url).parse_all()
-        assert len(elems) == 222467
+        # elems = bgpkit.Parser(items[0].url).parse_all()
+        # assert len(elems) == 222467
+
+    def test_roas(self):
+        roas = bgpkit.Roas()
+        data = roas.query(debug=True, asn=3333, date="2018-01-01")
+        for entry in data:
+            print(entry)
+        assert len(data) == 10
+
+        assert len(roas.query()) == 0
diff --git a/setup.py b/setup.py
index 5c61955..7501767 100644
--- a/setup.py
+++ b/setup.py
@@ -1,17 +1,25 @@
 import setuptools
 
+# read the contents of your README file
+from pathlib import Path
+this_directory = Path(__file__).parent
+long_description = (this_directory / "README.md").read_text()
+
 setuptools.setup(
     name='pybgpkit',
-    version='0.0.1',
+    version='0.0.2.post1',
     description='BGPKIT tools Python bindings',
     url='https://github.com/bgpkit/pybgpkit',
     author='Mingwei Zhang',
     author_email='mingwei@bgpkit.com',
     packages=setuptools.find_packages(),
     include_package_data=True,
+    long_description=long_description,
+    long_description_content_type='text/markdown',
     install_requires=[
         # available on pip
         'pybgpkit-parser==0.0.1',
+        'requests',
     ],
     entry_points={'console_scripts': [
     ]}