diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Andrew Martin (c) 2016
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Andrew Martin nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/http-api-data-ip.cabal b/http-api-data-ip.cabal
new file mode 100644
--- /dev/null
+++ b/http-api-data-ip.cabal
@@ -0,0 +1,28 @@
+cabal-version: 2.4
+name: http-api-data-ip
+version: 0.1.0.0
+synopsis: Code for using the ip package with http-api-data
+homepage: https://github.com/andrewthad/http-api-data-ip
+license: BSD-3-Clause
+license-file: LICENSE
+author: Andrew Martin
+maintainer: andrew.thaddeus@gmail.com
+copyright: 2021 Andrew Martin
+category: web
+build-type: Simple
+
+library
+  hs-source-dirs: src
+  exposed-modules:
+    Web.HttpApiData.Net
+  build-depends:
+    , base >= 4.7 && < 5
+    , attoparsec >= 0.13.2 && < 0.15
+    , http-api-data >= 0.3 && < 0.7
+    , ip >= 1.4.1 && < 1.8
+    , text >= 1.2
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/andrewthad/http-api-data-ip
diff --git a/src/Web/HttpApiData/Net.hs b/src/Web/HttpApiData/Net.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/HttpApiData/Net.hs
@@ -0,0 +1,43 @@
+-- | This module provides orphan instances for 'ToHttpApiData'
+--   and 'FromHttpApiData' for data types from the @ip@ package.
+
+module Web.HttpApiData.Net () where
+
+import Data.Monoid
+import Data.Text (Text)
+import Net.Types (IPv4,Mac)
+import Web.HttpApiData (ToHttpApiData(..),FromHttpApiData(..))
+
+import qualified Data.Text as Text
+import qualified Net.IPv4 as IPv4
+import qualified Net.Mac as Mac
+
+instance ToHttpApiData Mac where
+  toUrlPiece   = Mac.encode
+  toHeader     = Mac.encodeUtf8
+  toQueryParam = Mac.encode
+
+instance FromHttpApiData Mac where
+  parseUrlPiece   = describeError mac . Mac.decode
+  parseQueryParam = describeError mac . Mac.decode
+  parseHeader     = describeError mac . Mac.decodeUtf8
+
+instance ToHttpApiData IPv4 where
+  toUrlPiece   = IPv4.encode
+  toHeader     = IPv4.encodeUtf8
+  toQueryParam = IPv4.encode
+
+instance FromHttpApiData IPv4 where
+  parseUrlPiece   = describeError ipv4 . IPv4.decode
+  parseQueryParam = describeError ipv4 . IPv4.decode
+  parseHeader     = describeError ipv4 . IPv4.decodeUtf8
+
+mac,ipv4 :: Text
+mac = Text.pack "MAC Address"
+ipv4 = Text.pack "IPv4 Address"
+
+describeError :: Text -> Maybe a -> Either Text a
+describeError name x = case x of
+  Nothing -> Left (Text.pack "could not parse " <> name)
+  Just a  -> Right a
+