diff --git a/P2P/Http/Client.hs b/P2P/Http/Client.hs
index fa3646cf7a..78a17c30d6 100644
--- a/P2P/Http/Client.hs
+++ b/P2P/Http/Client.hs
@@ -13,6 +13,7 @@
 
 module P2P.Http.Client (
 	module P2P.Http.Client,
+	module P2P.Http.Types,
 	Validity(..),
 ) where
 
@@ -25,6 +26,7 @@ import Annex.UUID
 import Types.Remote
 import P2P.Http
 import P2P.Http.Url
+import P2P.Http.Types
 import Annex.Common
 import P2P.Protocol hiding (Offset, Bypass, auth)
 import Annex.Concurrent
@@ -286,20 +288,16 @@ clientGetTimestamp clientenv (ProtocolVersion ver) su cu bypass auth =
 
 #ifdef WITH_SERVANT
 clientPut
-	:: ClientEnv
-	-> ProtocolVersion
-	-> B64Key
-	-> B64UUID ServerSide
-	-> B64UUID ClientSide
-	-> [B64UUID Bypass]
-	-> Maybe Auth
+	:: MeterUpdate
+	-> Key
 	-> Maybe Offset
 	-> AssociatedFile
 	-> FilePath
 	-> FileSize
 	-> Annex Bool
-	-> Annex PutResultPlus
-clientPut clientenv (ProtocolVersion ver) k su cu bypass auth moffset af contentfile contentfilesize validitycheck = do
+	-- ^ Called after sending the file to check if it's valid.
+	-> ClientAction PutResultPlus
+clientPut meterupdate k moffset af contentfile contentfilesize validitycheck clientenv (ProtocolVersion ver) su cu bypass auth = do
 	checkv <- liftIO newEmptyTMVarIO
 	checkresultv <- liftIO newEmptyTMVarIO
 	let checker = do
@@ -314,10 +312,10 @@ clientPut clientenv (ProtocolVersion ver) k su cu bypass auth moffset af content
 		Left err -> do
 			void $ liftIO $ atomically $ tryPutTMVar checkv ()
 			join $ liftIO (wait checkerthread)
-			throwM err
+			return (Left err)
 		Right res -> do
 			join $ liftIO (wait checkerthread)
-			return res
+			return (Right res)
   where
 	stream h checkv checkresultv = S.SourceT $ \a -> do
 		bl <- L.hGetContents h
@@ -365,12 +363,14 @@ clientPut clientenv (ProtocolVersion ver) k su cu bypass auth moffset af content
 	offset = case moffset of
 		Nothing -> 0
 		Just (Offset o) -> fromIntegral o
+	
+	bk = B64Key k
 
 	cli src = case ver of
-		3 -> v3 su V3 len k cu bypass baf moffset src auth
-		2 -> v2 su V2 len k cu bypass baf moffset src auth
-		1 -> plus <$> v1 su V1 len k cu bypass baf moffset src auth
-		0 -> plus <$> v0 su V0 len k cu bypass baf moffset src auth
+		3 -> v3 su V3 len bk cu bypass baf moffset src auth
+		2 -> v2 su V2 len bk cu bypass baf moffset src auth
+		1 -> plus <$> v1 su V1 len bk cu bypass baf moffset src auth
+		0 -> plus <$> v0 su V0 len bk cu bypass baf moffset src auth
 		_ -> error "unsupported protocol version"
 
 	_ :<|> _ :<|> _ :<|> _ :<|>
@@ -379,29 +379,24 @@ clientPut clientenv (ProtocolVersion ver) k su cu bypass auth moffset af content
 		_ :<|>
 		_ :<|>
 		v3 :<|> v2 :<|> v1 :<|> v0 :<|> _ = client p2pHttpAPI
+#else
+clientPut _ _ _ _ _ _ _ = ()
 #endif
 
 #ifdef WITH_SERVANT
 clientPutOffset
-	:: ClientEnv
-	-> ProtocolVersion
-	-> B64Key
-	-> B64UUID ServerSide
-	-> B64UUID ClientSide
-	-> [B64UUID Bypass]
-	-> Maybe Auth
-	-> IO PutOffsetResultPlus
-clientPutOffset clientenv (ProtocolVersion ver) k su cu bypass auth
-	| ver == 0 = return (PutOffsetResultPlus (Offset 0))
-	| otherwise = 
-		withClientM cli clientenv $ \case
-			Left err -> throwM err
-			Right res -> return res
+	:: Key
+	-> ClientAction PutOffsetResultPlus
+clientPutOffset k clientenv (ProtocolVersion ver) su cu bypass auth
+	| ver == 0 = return (Right (PutOffsetResultPlus (Offset 0)))
+	| otherwise = liftIO $ withClientM cli clientenv return
   where
+	bk = B64Key k
+
 	cli = case ver of
-		3 -> v3 su V3 k cu bypass auth
-		2 -> v2 su V2 k cu bypass auth
-		1 -> plus <$> v1 su V1 k cu bypass auth
+		3 -> v3 su V3 bk cu bypass auth
+		2 -> v2 su V2 bk cu bypass auth
+		1 -> plus <$> v1 su V1 bk cu bypass auth
 		_ -> error "unsupported protocol version"
 	
 	_ :<|> _ :<|> _ :<|> _ :<|>
@@ -411,6 +406,8 @@ clientPutOffset clientenv (ProtocolVersion ver) k su cu bypass auth
 		_ :<|>
 		_ :<|> _ :<|> _ :<|> _ :<|>
 		v3 :<|> v2 :<|> v1 :<|> _ = client p2pHttpAPI
+#else
+clientPutOffset _ = ()
 #endif
 
 #ifdef WITH_SERVANT
diff --git a/Remote/Git.hs b/Remote/Git.hs
index b8bd64cb72..dec386e081 100644
--- a/Remote/Git.hs
+++ b/Remote/Git.hs
@@ -539,7 +539,7 @@ copyFromRemote r st key file dest meterupdate vc = do
 
 copyFromRemote'' :: Git.Repo -> Remote -> State -> Key -> AssociatedFile -> FilePath -> MeterUpdate -> VerifyConfig -> Annex Verification
 copyFromRemote'' repo r st@(State connpool _ _ _ _) key af dest meterupdate vc
-	| isP2PHttp r = p2phttp
+	| isP2PHttp r = copyp2phttp
 	| Git.repoIsHttp repo = verifyKeyContentIncrementally vc key $ \iv -> do
 		gc <- Annex.getGitConfig
 		ok <- Url.withUrlOptionsPromptingCreds $
@@ -574,7 +574,7 @@ copyFromRemote'' repo r st@(State connpool _ _ _ _) key af dest meterupdate vc
 	bwlimit = remoteAnnexBwLimitDownload (gitconfig r)
 		<|> remoteAnnexBwLimit (gitconfig r)
 		
-	p2phttp = verifyKeyContentIncrementally vc key $ \iv -> do
+	copyp2phttp = verifyKeyContentIncrementally vc key $ \iv -> do
 		startsz <- liftIO $ tryWhenExists $
 			getFileSize (toRawFilePath dest)
 		bracketIO (openBinaryFile dest ReadWriteMode) (hClose) $ \h -> do
@@ -614,9 +614,10 @@ copyToRemote r st key af o meterupdate = do
 
 copyToRemote' :: Git.Repo -> Remote -> State -> Key -> AssociatedFile -> Maybe FilePath -> MeterUpdate -> Annex ()
 copyToRemote' repo r st@(State connpool duc _ _ _) key af o meterupdate
+	| isP2PHttp r = prepsendwith copyp2phttp
 	| not $ Git.repoIsUrl repo = ifM duc
 		( guardUsable repo (giveup "cannot access remote") $ commitOnCleanup repo r st $
-			copylocal =<< Annex.Content.prepSendAnnex' key o
+			prepsendwith copylocal
 		, giveup "remote does not have expected annex.uuid value"
 		)
 	| Git.repoIsSsh repo =
@@ -624,18 +625,24 @@ copyToRemote' repo r st@(State connpool duc _ _ _) key af o meterupdate
 			(Ssh.runProto r connpool (return Nothing))
 			key af o meterupdate
 		
-	| otherwise = giveup "copying to non-ssh repo not supported"
+	| otherwise = giveup "copying to this remote is not supported"
   where
-	copylocal Nothing = giveup "content not available"
-	copylocal (Just (object, sz, check)) = do
+	prepsendwith a = Annex.Content.prepSendAnnex' key o >>= \case
+		Nothing -> giveup "content not available"
+		Just v -> a v
+		
+	bwlimit = remoteAnnexBwLimitUpload (gitconfig r)
+		<|> remoteAnnexBwLimit (gitconfig r)
+
+	failedsend = giveup "failed to send content to remote"
+
+	copylocal (object, sz, check) = do
 		-- The check action is going to be run in
 		-- the remote's Annex, but it needs access to the local
 		-- Annex monad's state.
 		checkio <- Annex.withCurrentState check
 		u <- getUUID
 		hardlink <- wantHardLink
-		let bwlimit = remoteAnnexBwLimitUpload (gitconfig r)
-			<|> remoteAnnexBwLimit (gitconfig r)
 		-- run copy from perspective of remote
 		res <- onLocalFast st $ ifM (Annex.Content.inAnnex key)
 			( return True
@@ -651,7 +658,28 @@ copyToRemote' repo r st@(State connpool duc _ _ _) key af o meterupdate
 						copier object (fromRawFilePath dest) key p' checksuccess verify
 			)
 		unless res $
-			giveup "failed to send content to remote"
+			failedsend
+
+	copyp2phttp (object, sz, check) =
+		let check' = check >>= \case
+			Just s -> do
+				warning (UnquotedString s)
+				return False
+			Nothing -> return True
+		in p2pHttpClient r (const $ pure $ PutOffsetResultPlus (Offset 0)) (clientPutOffset key) >>= \case
+			PutOffsetResultPlus offset -> 
+				metered (Just meterupdate) key bwlimit $ \_ p -> do
+					res <- p2pHttpClient r giveup $
+						clientPut p key (Just offset) af object sz check'
+					case res of
+						PutResultPlus False _ ->
+							failedsend
+						PutResultPlus True fanoutuuids ->
+							storefanout fanoutuuids
+			PutOffsetResultAlreadyHavePlus fanoutuuids ->
+				storefanout fanoutuuids
+	
+	storefanout = P2PHelper.storeFanout key (uuid r) . map fromB64UUID
 
 fsckOnRemote :: Git.Repo -> [CommandParam] -> Annex (IO Bool)
 fsckOnRemote r params
diff --git a/Remote/Helper/P2P.hs b/Remote/Helper/P2P.hs
index 97dbca9e21..9f61497041 100644
--- a/Remote/Helper/P2P.hs
+++ b/Remote/Helper/P2P.hs
@@ -42,16 +42,19 @@ store remoteuuid gc runner k af o p = do
 	let bwlimit = remoteAnnexBwLimitUpload gc <|> remoteAnnexBwLimit gc
 	metered (Just p) sizer bwlimit $ \_ p' ->
 		runner (P2P.put k af p') >>= \case
-			Just (Just fanoutuuids) -> do
-				-- Storing on the remote can cause it
-				-- to be stored on additional UUIDs, 
-				-- so record those.
-				forM_ fanoutuuids $ \u ->
-					when (u /= remoteuuid) $
-						logChange k u InfoPresent
+			Just (Just fanoutuuids) -> 
+				storeFanout k remoteuuid fanoutuuids
 			Just Nothing -> giveup "Transfer failed"
 			Nothing -> remoteUnavail
 
+storeFanout :: Key -> UUID -> [UUID] -> Annex ()
+storeFanout k remoteuuid us = 
+	-- Storing on the remote can cause it to be stored on additional UUIDs, 
+	-- so record those.
+	forM_ us $ \u ->
+		when (u /= remoteuuid) $
+			logChange k u InfoPresent
+
 retrieve :: RemoteGitConfig -> (ProtoRunner (Bool, Verification)) -> Key -> AssociatedFile -> FilePath -> MeterUpdate -> VerifyConfig -> Annex Verification
 retrieve gc runner k af dest p verifyconfig = do
 	iv <- startVerifyKeyContentIncrementally verifyconfig k