diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 364b4c035..472079878 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -5,6 +5,7 @@ Alex Gryzlov
 Alex Silva 
 Andre Kuhlenschmidt 
 André Videla 
+Andy Lok
 Arnaud Bailly 
 Brian Wignall 
 Christian Rasmussen 
diff --git a/INSTALL.md b/INSTALL.md
index 9cc187c1a..45c2d1585 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -84,3 +84,14 @@ that everything has worked correctly.  Assuming that `idris2` is in your
 
 After `make all`, type `make test` to check everything works. This uses the
 executable in `./build/exec`.
+
+5: (Optional) Installing the Idris 2 API
+----------------------------------------
+
+You'll only need this if you're developing support tools, such as an external
+code generator. To do so, once everything is successfully installed, type:
+
+* `make install-api`
+
+The API will only work if you've completed the self-hosting step, step 3, since
+the intermediate code versions need to be consistent throughout.
diff --git a/Makefile b/Makefile
index e1fd790f0..412be61fe 100644
--- a/Makefile
+++ b/Makefile
@@ -86,6 +86,9 @@ clean: clean-libs support-clean
 
 install: install-idris2 install-support install-libs
 
+install-api:
+	${IDRIS2_BOOT} --install idris2api.ipkg
+
 install-idris2:
 	mkdir -p ${PREFIX}/bin/
 	install ${TARGET} ${PREFIX}/bin
diff --git a/idris2api.ipkg b/idris2api.ipkg
new file mode 100644
index 000000000..88374b82b
--- /dev/null
+++ b/idris2api.ipkg
@@ -0,0 +1,148 @@
+package idris2
+
+modules =
+    Algebra,
+    Algebra.Preorder,
+    Algebra.Semiring,
+    Algebra.ZeroOneOmega,
+
+    Compiler.ANF,
+    Compiler.Common,
+    Compiler.CompileExpr,
+    Compiler.Inline,
+    Compiler.LambdaLift,
+    Compiler.Scheme.Chez,
+    Compiler.Scheme.Racket,
+    Compiler.Scheme.Gambit,
+    Compiler.Scheme.Common,
+    Compiler.VMCode,
+
+    Control.Delayed,
+
+    Core.AutoSearch,
+    Core.Binary,
+    Core.CaseBuilder,
+    Core.CaseTree,
+    Core.Context,
+    Core.CompileExpr,
+    Core.Core,
+    Core.Coverage,
+    Core.Directory,
+    Core.Env,
+    Core.FC,
+    Core.GetType,
+    Core.Hash,
+    Core.InitPrimitives,
+    Core.LinearCheck,
+    Core.Metadata,
+    Core.Name,
+    Core.Normalise,
+    Core.Options,
+    Core.Primitives,
+--     Core.Reflect,
+    Core.Termination,
+    Core.Transform,
+    Core.TT,
+    Core.TTC,
+    Core.Unify,
+    Core.UnifyState,
+    Core.Value,
+
+    Data.ANameMap,
+    Data.Bool.Extra,
+    Data.IntMap,
+    Data.LengthMatch,
+    Data.NameMap,
+    Data.StringMap,
+    Data.These,
+    Data.StringTrie,
+
+    IdrisPaths,
+
+    Idris.CommandLine,
+    Idris.Desugar,
+    Idris.Elab.Implementation,
+    Idris.Elab.Interface,
+    Idris.Error,
+    Idris.IDEMode.CaseSplit,
+    Idris.IDEMode.Commands,
+    Idris.IDEMode.MakeClause,
+    Idris.IDEMode.Parser,
+    Idris.IDEMode.REPL,
+    Idris.IDEMode.TokenLine,
+    Idris.ModTree,
+    Idris.Package,
+    Idris.Parser,
+    Idris.ProcessIdr,
+    Idris.REPL,
+    Idris.REPLCommon,
+    Idris.REPLOpts,
+    Idris.Resugar,
+    Idris.SetOptions,
+    Idris.Syntax,
+    Idris.Version,
+
+    Parser.Lexer,
+    Parser.Support,
+    Parser.Unlit,
+
+    Text.Lexer,
+    Text.Lexer.Core,
+    Text.Literate,
+    Text.Parser,
+    Text.Parser.Core,
+    Text.Quantity,
+    Text.Token,
+
+    TTImp.BindImplicits,
+    TTImp.Elab,
+    TTImp.Elab.Ambiguity,
+    TTImp.Elab.App,
+    TTImp.Elab.As,
+    TTImp.Elab.Binders,
+    TTImp.Elab.Case,
+    TTImp.Elab.Check,
+    TTImp.Elab.Delayed,
+    TTImp.Elab.Dot,
+    TTImp.Elab.Hole,
+    TTImp.Elab.ImplicitBind,
+    TTImp.Elab.Lazy,
+    TTImp.Elab.Local,
+    TTImp.Elab.Prim,
+--     TTImp.Elab.Quote,
+    TTImp.Elab.Record,
+    TTImp.Elab.Rewrite,
+    TTImp.Elab.Term,
+    TTImp.Elab.Utils,
+    TTImp.Impossible,
+    TTImp.Interactive.CaseSplit,
+    TTImp.Interactive.ExprSearch,
+    TTImp.Interactive.GenerateDef,
+    TTImp.Interactive.MakeLemma,
+    TTImp.Parser,
+    TTImp.PartialEval,
+    TTImp.ProcessData,
+    TTImp.ProcessDecls,
+    TTImp.ProcessDef,
+    TTImp.ProcessParams,
+    TTImp.ProcessRecord,
+    TTImp.ProcessTransform,
+    TTImp.ProcessType,
+--     TTImp.Reflect,
+    TTImp.TTImp,
+    TTImp.Unelab,
+    TTImp.Utils,
+    TTImp.WithClause,
+
+    Utils.Binary,
+    Utils.Hex,
+    Utils.Octal,
+    Utils.Shunting,
+    Utils.String,
+
+    Yaffle.Main,
+    Yaffle.REPL
+
+depends = contrib, network
+
+sourcedir = "src"