diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
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+# Revision history for database-id-class
+
+## 0.1.0.0
+
+* Initial release. Contains HasId class and associated instances.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright (c) 2019, Obsidian Systems LLC
+
+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 Obsidian Systems LLC 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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+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/database-id-class.cabal b/database-id-class.cabal
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+++ b/database-id-class.cabal
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+cabal-version:       >=1.10
+name:                database-id-class
+version:             0.1.0.0
+synopsis:            Class for types with a database id
+description:         Class for types with a database id
+-- bug-reports:
+license:             BSD3
+license-file:        LICENSE
+author:              Obsidian Systems LLC
+maintainer:          maintainer@obsidian.systems
+copyright:           2019 Obsidian Systems LLC
+category:            Database
+build-type:          Simple
+extra-source-files:  CHANGELOG.md
+
+library
+  exposed-modules: Database.Id.Class
+  build-depends: base >=4.11 && <4.14
+               , aeson
+  hs-source-dirs:      src
+  default-language:    Haskell2010
diff --git a/src/Database/Id/Class.hs b/src/Database/Id/Class.hs
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+++ b/src/Database/Id/Class.hs
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+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE StandaloneDeriving #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE UndecidableInstances #-}
+module Database.Id.Class where
+
+import Data.Aeson
+import Data.Int
+import Data.Typeable
+
+-- | Class for types that have a database ID column
+class HasId a where
+  type IdData a :: *
+  type IdData a = Int64
+
+newtype Id a = Id { unId :: IdData a } deriving Typeable
+
+deriving instance Read (IdData a) => Read (Id a)
+deriving instance Show (IdData a) => Show (Id a)
+deriving instance Eq (IdData a) => Eq (Id a)
+deriving instance Ord (IdData a) => Ord (Id a)
+deriving instance FromJSON (IdData a) => FromJSON (Id a)
+deriving instance ToJSON (IdData a) => ToJSON (Id a)
+deriving instance FromJSONKey (IdData a) => FromJSONKey (Id a)
+deriving instance ToJSONKey (IdData a) => ToJSONKey (Id a)
+
+data IdValue a = IdValue (Id a) a deriving Typeable