RPC API structures are part of the Ethereum lib proper for now.

lib/ethereum.hoon

@@ -28,7 +28,7 @@
 ::
 ++  request-to-json
   =,  enjs:format
-  |=  req=request:jrpc-api
+  |=  req=request
   ^-  json
   %-  pairs
   =;  cal=[m=@t p=(list json)]
@@ -49,7 +49,7 @@
   ==
 ::
 ++  eth-call-to-json
-  |=  cal=call:jrpc-api
+  |=  cal=call
   ^-  json
   :-  %o  %-  ~(gas by *(map @t json))
   =-  (murn - same)
@@ -73,7 +73,7 @@
   ==
 ::
 ++  default-block-to-json
-  |=  dob=default-block:jrpc-api
+  |=  dob=default-block
   ^-  json
   ?-  -.dob
     %quantity   n+(crip ((d-co:co 0) n.dob))

sur/ethereum.hoon

@@ -15,28 +15,24 @@
   ==
 ::
 ::  ethereum json rpc api
-::TODO  make single ++eth-rpc core, or split off into separate sur+lib
 ::
-++  jrpc-api
-  |%
-  ++  request
-    $%  [%eth-block-number ~]
-        [%eth-call cal=call deb=default-block]
-        [%eth-estimate-gas cal=call deb=default-block]
-    ==
-  ::
-  ++  call
-    $:  from=(unit @i)
-        to=@i
-        gas=(unit @ud)
-        gas-price=(unit @ud)
-        value=(unit @ud)
-        data=tape
-    ==
-  ::
-  ++  default-block
-    $%  [%quantity n=@ud]
-        [%label l=?(%earliest %latest %pending)]
-    ==
-  --
+++  request
+  $%  [%eth-block-number ~]
+      [%eth-call cal=call deb=default-block]
+      [%eth-estimate-gas cal=call deb=default-block]
+  ==
+::
+++  call
+  $:  from=(unit @i)
+      to=@i
+      gas=(unit @ud)
+      gas-price=(unit @ud)
+      value=(unit @ud)
+      data=tape
+  ==
+::
+++  default-block
+  $%  [%quantity n=@ud]
+      [%label l=?(%earliest %latest %pending)]
+  ==
 --