diff --git a/src/exchange/taler-exchange-httpd_deposit.c b/src/exchange/taler-exchange-httpd_deposit.c
index 42162f8a4..38dfd4473 100644
--- a/src/exchange/taler-exchange-httpd_deposit.c
+++ b/src/exchange/taler-exchange-httpd_deposit.c
@@ -45,7 +45,6 @@
  * operation with the given wiring details.
  *
  * @param connection connection to the client
- * @param kyc KYC status for the credited account
  * @param coin_pub public key of the coin
  * @param h_wire hash of wire details
  * @param h_contract_terms hash of contract details
@@ -57,7 +56,6 @@
  */
 static MHD_RESULT
 reply_deposit_success (struct MHD_Connection *connection,
-                       const struct TALER_EXCHANGEDB_KycStatus *kyc,
                        const struct TALER_CoinSpendPublicKeyP *coin_pub,
                        const struct GNUNET_HashCode *h_wire,
                        const struct GNUNET_HashCode *h_contract_terms,
@@ -94,10 +92,6 @@ reply_deposit_success (struct MHD_Connection *connection,
   return TALER_MHD_REPLY_JSON_PACK (
     connection,
     MHD_HTTP_OK,
-    GNUNET_JSON_pack_uint64 ("payment_target_uuid",
-                             kyc->payment_target_uuid),
-    GNUNET_JSON_pack_bool ("kyc_ok",
-                           kyc->ok),
     GNUNET_JSON_pack_time_abs ("exchange_timestamp",
                                exchange_timestamp),
     GNUNET_JSON_pack_data_auto ("exchange_sig",
@@ -127,11 +121,6 @@ struct DepositContext
    */
   struct TALER_Amount value;
 
-  /**
-   * KYC status for the receiving account.
-   */
-  struct TALER_EXCHANGEDB_KycStatus kyc;
-
   /**
    * payto:// URI of the credited account.
    */
@@ -161,21 +150,6 @@ deposit_precheck (void *cls,
   struct TALER_Amount deposit_fee;
   enum GNUNET_DB_QueryStatus qs;
 
-  qs = TEH_plugin->get_kyc_status (TEH_plugin->cls,
-                                   dc->payto_uri,
-                                   &dc->kyc);
-  if (qs < 0)
-  {
-    if (GNUNET_DB_STATUS_HARD_ERROR == qs)
-    {
-      *mhd_ret = TALER_MHD_reply_with_error (connection,
-                                             MHD_HTTP_INTERNAL_SERVER_ERROR,
-                                             TALER_EC_GENERIC_DB_FETCH_FAILED,
-                                             "get_kyc_status");
-      return GNUNET_DB_STATUS_HARD_ERROR;
-    }
-    return qs;
-  }
   qs = TEH_plugin->have_deposit (TEH_plugin->cls,
                                  deposit,
                                  GNUNET_YES /* check refund deadline */,
@@ -204,7 +178,6 @@ deposit_precheck (void *cls,
                                           &deposit->amount_with_fee,
                                           &deposit_fee));
     *mhd_ret = reply_deposit_success (connection,
-                                      &dc->kyc,
                                       &deposit->coin.coin_pub,
                                       &deposit->h_wire,
                                       &deposit->h_contract_terms,
@@ -637,7 +610,6 @@ TEH_handler_deposit (struct MHD_Connection *connection,
                                           &deposit.amount_with_fee,
                                           &deposit.deposit_fee));
     res = reply_deposit_success (connection,
-                                 &dc.kyc,
                                  &deposit.coin.coin_pub,
                                  &deposit.h_wire,
                                  &deposit.h_contract_terms,
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index 9d48f9d9d..0b6243916 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -840,11 +840,6 @@ struct TALER_EXCHANGE_DepositResult
        */
       const char *transaction_base_url;
 
-      /**
-       * Payment target that the merchant should use
-       * to check for its KYC status.
-       */
-      uint64_t payment_target_uuid;
     } success;
 
     /**
diff --git a/src/include/taler_json_lib.h b/src/include/taler_json_lib.h
index 3581252ca..068dea7d5 100644
--- a/src/include/taler_json_lib.h
+++ b/src/include/taler_json_lib.h
@@ -503,7 +503,7 @@ TALER_JSON_get_error_code2 (const void *data,
  * @param[out] hc set to the hash
  * @return #GNUNET_OK on success, #GNUNET_SYSERR if @a wire_s is malformed
  */
-int
+enum GNUNET_GenericReturnValue
 TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
                                          struct GNUNET_HashCode *hc);
 
@@ -516,7 +516,7 @@ TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
  * @param master_pub master public key of the exchange
  * @return #GNUNET_OK if signature is valid
  */
-int
+enum GNUNET_GenericReturnValue
 TALER_JSON_exchange_wire_signature_check (
   const json_t *wire_s,
   const struct TALER_MasterPublicKeyP *master_pub);
diff --git a/src/json/json_wire.c b/src/json/json_wire.c
index 7ec21da65..f88daefcb 100644
--- a/src/json/json_wire.c
+++ b/src/json/json_wire.c
@@ -24,15 +24,7 @@
 #include "taler_json_lib.h"
 
 
-/**
- * Compute the hash of the given wire details.   The resulting
- * hash is what is put into the contract.
- *
- * @param wire_s wire details to hash
- * @param[out] hc set to the hash
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if @a wire_s is malformed
- */
-int
+enum GNUNET_GenericReturnValue
 TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
                                          struct GNUNET_HashCode *hc)
 {
@@ -78,15 +70,7 @@ TALER_JSON_merchant_wire_signature_hash (const json_t *wire_s,
 }
 
 
-/**
- * Check the signature in @a wire_s.  Also performs rudimentary
- * checks on the account data *if* supported.
- *
- * @param wire_s signed wire information of an exchange
- * @param master_pub master public key of the exchange
- * @return #GNUNET_OK if signature is valid
- */
-int
+enum GNUNET_GenericReturnValue
 TALER_JSON_exchange_wire_signature_check (
   const json_t *wire_s,
   const struct TALER_MasterPublicKeyP *master_pub)
@@ -131,13 +115,6 @@ TALER_JSON_exchange_wire_signature_check (
 }
 
 
-/**
- * Create a signed wire statement for the given account.
- *
- * @param payto_uri account specification
- * @param master_priv private key to sign with
- * @return NULL if @a payto_uri is malformed
- */
 json_t *
 TALER_JSON_exchange_wire_signature_make (
   const char *payto_uri,
@@ -167,13 +144,6 @@ TALER_JSON_exchange_wire_signature_make (
 }
 
 
-/**
- * Obtain the wire method associated with the given
- * wire account details.  @a wire_s must contain a payto://-URL
- * under 'payto_uri'.
- *
- * @return NULL on error
- */
 char *
 TALER_JSON_wire_to_payto (const json_t *wire_s)
 {
@@ -204,13 +174,6 @@ TALER_JSON_wire_to_payto (const json_t *wire_s)
 }
 
 
-/**
- * Obtain the wire method associated with the given
- * wire account details.  @a wire_s must contain a payto://-URL
- * under 'url'.
- *
- * @return NULL on error
- */
 char *
 TALER_JSON_wire_to_method (const json_t *wire_s)
 {
diff --git a/src/lib/exchange_api_deposit.c b/src/lib/exchange_api_deposit.c
index 92356ac25..35e09bd07 100644
--- a/src/lib/exchange_api_deposit.c
+++ b/src/lib/exchange_api_deposit.c
@@ -283,8 +283,6 @@ handle_deposit_finished (void *cls,
                                      &dh->exchange_sig),
         GNUNET_JSON_spec_fixed_auto ("exchange_pub",
                                      &dh->exchange_pub),
-        GNUNET_JSON_spec_uint64 ("payment_target_uuid",
-                                 &dr.details.success.payment_target_uuid),
         GNUNET_JSON_spec_mark_optional (
           GNUNET_JSON_spec_string ("transaction_base_url",
                                    &dr.details.success.transaction_base_url)),