diff --git a/docs/api/builtins.md b/docs/api/builtins.md
new file mode 100644
index 00000000..a959c2af
--- /dev/null
+++ b/docs/api/builtins.md
@@ -0,0 +1,82 @@
+# Built-ins
+
+This section contains all of the primitives and other objects that are included in the Cyclone runtime. These objects are always available regardless of library imports.
+
+placeholder:
+- [`*`](#*)
+
+#*
+
++
+-
+/
+<
+<=
+=
+>
+>=
+apply
+boolean?
+bytevector
+bytevector-append
+bytevector-length
+bytevector-u8-ref
+bytevector-u8-set!
+bytevector?
+car
+cdr
+cell
+cell-get
+char->integer
+char?
+close-input-port
+close-output-port
+close-port
+command-line-arguments
+cons
+delete-file
+eof-object?
+eq?
+equal?
+eqv?
+error
+exit
+file-exists?
+integer->char
+integer?
+length
+list->string
+list->vector
+make-bytevector
+make-vector
+null?
+number->string
+number?
+open-input-file
+open-output-file
+pair?
+peek-char
+port?
+procedure?
+read-char
+real?
+set-car!
+set-cdr!
+set-cell!
+set-global!
+string->number
+string->symbol
+string-append
+string-cmp
+string-length
+string-ref
+string-set!
+string?
+substring
+symbol->string
+symbol?
+system
+vector-length
+vector-ref
+vector-set!
+vector?