diff --git a/parity/cli/mod.rs b/parity/cli/mod.rs
index 5ae6c8d3d..b81dcda4e 100644
--- a/parity/cli/mod.rs
+++ b/parity/cli/mod.rs
@@ -452,7 +452,7 @@ usage! {
 
 			ARG arg_jsonrpc_apis: (String) = "web3,eth,pubsub,net,parity,parity_pubsub,traces,rpc,shh,shh_pubsub", or |c: &Config| c.rpc.as_ref()?.apis.as_ref().map(|vec| vec.join(",")),
 			"--jsonrpc-apis=[APIS]",
-			"Specify the APIs available through the JSONRPC interface. APIS is a comma-delimited list of API name. Possible name are all, safe, web3, eth, net, personal, parity, parity_set, traces, rpc, parity_accounts, pubsub, parity_pubsub, shh, shh_pubsub, signer, secretstore. You can also disable a specific API by putting '-' in the front: all,-personal.",
+			"Specify the APIs available through the JSONRPC interface using a comma-delimited list of API names. Possible names are: all, safe, web3, net, eth, pubsub, personal, signer, parity, parity_pubsub, parity_accounts, parity_set, traces, rpc, secretstore, shh, shh_pubsub. You can also disable a specific API by putting '-' in the front, example: all,-personal. safe contains following apis: web3, net, eth, pubsub, parity, parity_pubsub, traces, rpc, shh, shh_pubsub",
 
 			ARG arg_jsonrpc_hosts: (String) = "none", or |c: &Config| c.rpc.as_ref()?.hosts.as_ref().map(|vec| vec.join(",")),
 			"--jsonrpc-hosts=[HOSTS]",
@@ -485,7 +485,7 @@ usage! {
 
 			ARG arg_ws_apis: (String) = "web3,eth,pubsub,net,parity,parity_pubsub,traces,rpc,shh,shh_pubsub", or |c: &Config| c.websockets.as_ref()?.apis.as_ref().map(|vec| vec.join(",")),
 			"--ws-apis=[APIS]",
-			"Specify the APIs available through the WebSockets interface. APIS is a comma-delimited list of API name. Possible name are web3, eth, pubsub, net, personal, parity, parity_set, traces, rpc, parity_accounts, pubsub, parity_pubsub, shh, shh_pubsub, signer, secretstore.",
+			"Specify the APIs available through the WebSockets interface using a comma-delimited list of API names. Possible names are: all, safe, web3, net, eth, pubsub, personal, signer, parity, parity_pubsub, parity_accounts, parity_set, traces, rpc, secretstore, shh, shh_pubsub. You can also disable a specific API by putting '-' in the front, example: all,-personal. safe contains following apis: web3, net, eth, pubsub, parity, parity_pubsub, traces, rpc, shh, shh_pubsub",
 
 			ARG arg_ws_origins: (String) = "parity://*,chrome-extension://*,moz-extension://*", or |c: &Config| c.websockets.as_ref()?.origins.as_ref().map(|vec| vec.join(",")),
 			"--ws-origins=[URL]",
@@ -506,7 +506,7 @@ usage! {
 
 			ARG arg_ipc_apis: (String) = "web3,eth,pubsub,net,parity,parity_pubsub,parity_accounts,traces,rpc,shh,shh_pubsub", or |c: &Config| c.ipc.as_ref()?.apis.as_ref().map(|vec| vec.join(",")),
 			"--ipc-apis=[APIS]",
-			"Specify custom API set available via JSON-RPC over IPC.",
+			"Specify custom API set available via JSON-RPC over IPC using a comma-delimited list of API names. Possible names are: all, safe, web3, net, eth, pubsub, personal, signer, parity, parity_pubsub, parity_accounts, parity_set, traces, rpc, secretstore, shh, shh_pubsub. You can also disable a specific API by putting '-' in the front, example: all,-personal. safe contains: web3, net, eth, pubsub, parity, parity_pubsub, traces, rpc, shh, shh_pubsub",
 
 		["API and console options – Dapps"]
 			FLAG flag_no_dapps: (bool) = false, or |c: &Config| c.dapps.as_ref()?.disable.clone(),