diff --git a/README.md b/README.md
index a45bc22..e319452 100644
--- a/README.md
+++ b/README.md
@@ -345,12 +345,13 @@ Create bounty
 - `{name} author_user_id` - author (EOSN Login ID)
 - `{name} bount_id` - bounty ID
 - `{symbol_code} accepted_token` - accepted deposit token (ex: `"USDT"`)
+- `{string} url` - bounty URL (ex: GitHub issue URL)
 - `{optional<name>} bounty_type` - bounty type (default = traditional)
 
 ### Example
 
 ```bash
-$ cleos push action work.pomelo create '[author.eosn, bounty1, "USDT", null]' -p author.eosn
+$ cleos push action work.pomelo create '[author.eosn, bounty1, "USDT", "https://github.com/pomelo-io/pomelo-rest-api/issues/735", null]' -p author.eosn
 ```
 
 ## ACTION `setmetadata`
diff --git a/work.pomelo.cpp b/work.pomelo.cpp
index 9f9b829..85ad297 100644
--- a/work.pomelo.cpp
+++ b/work.pomelo.cpp
@@ -55,7 +55,7 @@ void pomelo::deltoken( const symbol_code symcode )
 
 // @author
 [[eosio::action]]
-void pomelo::create( const name author_user_id, const name bounty_id, const symbol_code accepted_token, const optional<name> bounty_type )
+void pomelo::create( const name author_user_id, const name bounty_id, const symbol_code accepted_token, const string url, const optional<name> bounty_type )
 {
     eosn::login::require_auth_user_id( author_user_id, get_configs().login_contract );
 
@@ -84,6 +84,7 @@ void pomelo::create( const name author_user_id, const name bounty_id, const symb
         row.permissions = "approval"_n;
         row.created_at = current_time_point();
         row.updated_at = current_time_point();
+        row.metadata["url"_n] = url;
     });
     pomelo::createlog_action createlog( get_self(), { get_self(), "active"_n });
     createlog.send( bounty_id, author_user_id, extended_symbol{ token.sym, token.contract }, type, "approval"_n );
@@ -187,6 +188,7 @@ void pomelo::setconfig( const optional<name> status, const optional<uint64_t> fe
     if ( login_contract ) configs.login_contract = *login_contract;
     if ( fee_account ) configs.fee_account = *fee_account;
     if ( metadata_keys.size() ) configs.metadata_keys = metadata_keys;
+    configs.metadata_keys.insert("url"_n); // always include url by default
     _configs.set( configs, get_self() );
 }
 
diff --git a/work.pomelo.hpp b/work.pomelo.hpp
index 2653ca0..b99237b 100644
--- a/work.pomelo.hpp
+++ b/work.pomelo.hpp
@@ -236,16 +236,17 @@ class [[eosio::contract("work.pomelo")]] pomelo : public eosio::contract {
      * - `{name} author_user_id` - author (EOSN Login ID)
      * - `{name} bount_id` - bounty ID
      * - `{symbol_code} accepted_token` - accepted deposit token (ex: `"USDT"`)
+     * - `{string} url` - bounty URL (ex: GitHub issue URL)
      * - `{optional<name>} bounty_type` - bounty type (default = traditional)
      *
      * ### Example
      *
      * ```bash
-     * $ cleos push action work.pomelo create '[author.eosn, bounty1, "USDT", null]' -p author.eosn
+     * $ cleos push action work.pomelo create '[author.eosn, bounty1, "USDT", "https://github.com/pomelo-io/pomelo-rest-api/issues/735", null]' -p author.eosn
      * ```
      */
     [[eosio::action]]
-    void create( const name author_user_id, const name bounty_id, const symbol_code accepted_token, const optional<name> bounty_type );
+    void create( const name author_user_id, const name bounty_id, const symbol_code accepted_token, const string url, const optional<name> bounty_type );
 
     /**
      * ## ACTION `setstate`