diff --git a/doc/everest_api_specs/auth_token_validator_API/asyncapi.yaml b/doc/everest_api_specs/auth_token_validator_API/asyncapi.yaml
index 5e09c83337..1ce394f534 100644
--- a/doc/everest_api_specs/auth_token_validator_API/asyncapi.yaml
+++ b/doc/everest_api_specs/auth_token_validator_API/asyncapi.yaml
@@ -3,7 +3,7 @@ asyncapi: 3.0.0
 id: 'pionix:de:everest:auth_token_validator_API'
 info:
   title: 'EVerest API definition for auth token validator - CLIENT side (MODULE)'
-  version: 1.0.0
+  version: 1.0.1
   description: >-
     API for EVerest API clients implementing auth token validator.
 
@@ -206,7 +206,7 @@ components:
     EnergyTransferMode:
       description: >-
         Possible energy transfer modes. The modes AC_single_phase_core to DC_unique apply to DIN70121 and ISO15118-2.
-        The other modes DC to WPT apply to ISO15118-20.
+        The other modes DC to MCS_BPT apply to ISO15118-20 (and amendment).
       type: string
       enum:
         - AC_single_phase_core
@@ -224,6 +224,8 @@ components:
         - DC_ACDP
         - DC_ACDP_BPT
         - WPT
+        - MCS
+        - MCS_BPT
     ValidationResult:
       description: >-
         Result object containing authorization status enum value and an optional
diff --git a/doc/everest_api_specs/evse_manager_consumer_API/asyncapi.yaml b/doc/everest_api_specs/evse_manager_consumer_API/asyncapi.yaml
index c8b2712722..63c5dc4dd2 100644
--- a/doc/everest_api_specs/evse_manager_consumer_API/asyncapi.yaml
+++ b/doc/everest_api_specs/evse_manager_consumer_API/asyncapi.yaml
@@ -3,7 +3,7 @@ asyncapi: 3.0.0
 id: 'pionix:de:everest:evse_manager_consumer_API'
 info:
   title: 'EVerest API definition for the use of the EVSE manager'
-  version: 1.0.0
+  version: 1.0.1
   description: >-
     API to allow EVerest API clients to use the EvseManager module.
 
diff --git a/lib/everest/everest_api_types/include/everest_api_types/evse_manager/API.hpp b/lib/everest/everest_api_types/include/everest_api_types/evse_manager/API.hpp
index d76c4beecd..eda39ea15f 100644
--- a/lib/everest/everest_api_types/include/everest_api_types/evse_manager/API.hpp
+++ b/lib/everest/everest_api_types/include/everest_api_types/evse_manager/API.hpp
@@ -174,6 +174,7 @@ enum class ConnectorTypeEnum {
     cCCS1,
     cCCS2,
     cG105,
+    cMCS,
     cTesla,
     cType1,
     cType2,
diff --git a/lib/everest/everest_api_types/include/everest_api_types/iso15118_charger/API.hpp b/lib/everest/everest_api_types/include/everest_api_types/iso15118_charger/API.hpp
index 0cf8c60bb0..1203098e87 100644
--- a/lib/everest/everest_api_types/include/everest_api_types/iso15118_charger/API.hpp
+++ b/lib/everest/everest_api_types/include/everest_api_types/iso15118_charger/API.hpp
@@ -30,6 +30,8 @@ enum class EnergyTransferMode {
     DC_ACDP,
     DC_ACDP_BPT,
     WPT,
+    MCS,
+    MCS_BPT,
 };
 
 enum class Status {
diff --git a/lib/everest/everest_api_types/src/everest_api_types/evse_manager/json_codec.cpp b/lib/everest/everest_api_types/src/everest_api_types/evse_manager/json_codec.cpp
index e221934cde..4083d8088d 100644
--- a/lib/everest/everest_api_types/src/everest_api_types/evse_manager/json_codec.cpp
+++ b/lib/everest/everest_api_types/src/everest_api_types/evse_manager/json_codec.cpp
@@ -864,6 +864,9 @@ void to_json(json& j, ConnectorTypeEnum const& k) noexcept {
     case ConnectorTypeEnum::cG105:
         j = "cG105";
         return;
+    case ConnectorTypeEnum::cMCS:
+        j = "cMCS";
+        return;
     case ConnectorTypeEnum::cTesla:
         j = "cTesla";
         return;
@@ -939,6 +942,10 @@ void from_json(json const& j, ConnectorTypeEnum& k) {
         k = ConnectorTypeEnum::cG105;
         return;
     }
+    if (s == "cMCS") {
+        k = ConnectorTypeEnum::cMCS;
+        return;
+    }
     if (s == "cTesla") {
         k = ConnectorTypeEnum::cTesla;
         return;
diff --git a/lib/everest/everest_api_types/src/everest_api_types/evse_manager/wrapper.cpp b/lib/everest/everest_api_types/src/everest_api_types/evse_manager/wrapper.cpp
index b2b1e38681..d19bbc1f2c 100644
--- a/lib/everest/everest_api_types/src/everest_api_types/evse_manager/wrapper.cpp
+++ b/lib/everest/everest_api_types/src/everest_api_types/evse_manager/wrapper.cpp
@@ -530,6 +530,8 @@ ConnectorTypeEnum_Internal to_internal_api(ConnectorTypeEnum_External const& val
         return TarT::cCCS2;
     case SrcT::cG105:
         return TarT::cG105;
+    case SrcT::cMCS:
+        return TarT::cMCS;
     case SrcT::cTesla:
         return TarT::cTesla;
     case SrcT::cType1:
@@ -583,6 +585,8 @@ ConnectorTypeEnum_External to_external_api(ConnectorTypeEnum_Internal const& val
         return TarT::cCCS2;
     case SrcT::cG105:
         return TarT::cG105;
+    case SrcT::cMCS:
+        return TarT::cMCS;
     case SrcT::cTesla:
         return TarT::cTesla;
     case SrcT::cType1:
diff --git a/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/json_codec.cpp b/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/json_codec.cpp
index 331356659e..a0aab9e299 100644
--- a/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/json_codec.cpp
+++ b/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/json_codec.cpp
@@ -100,6 +100,14 @@ void from_json(json const& j, EnergyTransferMode& k) {
         k = EnergyTransferMode::WPT;
         return;
     }
+    if (s == "MCS") {
+        k = EnergyTransferMode::MCS;
+        return;
+    }
+    if (s == "MCS_BPT") {
+        k = EnergyTransferMode::MCS_BPT;
+        return;
+    }
 
     throw std::out_of_range(
         "Provided string " + s +
@@ -153,6 +161,12 @@ void to_json(json& j, EnergyTransferMode const& k) noexcept {
     case EnergyTransferMode::WPT:
         j = "WPT";
         return;
+    case EnergyTransferMode::MCS:
+        j = "MCS";
+        return;
+    case EnergyTransferMode::MCS_BPT:
+        j = "MCS_BPT";
+        return;
     }
     j = "INVALID_VALUE__everest::lib::API::V1_0::types::iso15118_charger::EnergyTransferMode";
 }
diff --git a/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/wrapper.cpp b/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/wrapper.cpp
index 42a6cce4a6..3f086d6a22 100644
--- a/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/wrapper.cpp
+++ b/lib/everest/everest_api_types/src/everest_api_types/iso15118_charger/wrapper.cpp
@@ -111,6 +111,10 @@ EnergyTransferMode_Internal to_internal_api(EnergyTransferMode_External const& v
         return TarT::DC_ACDP_BPT;
     case SrcT::WPT:
         return TarT::WPT;
+    case SrcT::MCS:
+        return TarT::MCS;
+    case SrcT::MCS_BPT:
+        return TarT::MCS_BPT;
     }
 
     throw std::out_of_range("Unexpected value for EnergyTransferMode_External");
@@ -151,6 +155,10 @@ EnergyTransferMode_External to_external_api(EnergyTransferMode_Internal const& v
         return TarT::DC_ACDP_BPT;
     case SrcT::WPT:
         return TarT::WPT;
+    case SrcT::MCS:
+        return TarT::MCS;
+    case SrcT::MCS_BPT:
+        return TarT::MCS_BPT;
     }
 
     throw std::out_of_range("Unexpected value for EnergyTransferMode_Internal");
diff --git a/lib/everest/everest_api_types/tests/expected_types_file_hashes.csv b/lib/everest/everest_api_types/tests/expected_types_file_hashes.csv
index b20ae6c1b5..c4699360d4 100644
--- a/lib/everest/everest_api_types/tests/expected_types_file_hashes.csv
+++ b/lib/everest/everest_api_types/tests/expected_types_file_hashes.csv
@@ -8,9 +8,9 @@ types/energy.yaml,82b8d902618eb3927a7e34e8a641cb2a69db93e404c2b61320c62eab3c290d
 types/energy_price_information.yaml,b2284d75a2fc695150cb72e7262b4efa11a05b11b1cca382451643a9bb2be624
 types/error_history.yaml,6c49548f8020e807ca17f710d6cb69e53399b9da4ed2aaa5247dd695f42c3b50
 types/evse_board_support.yaml,cbbe41414102d45b4d24db661b4da2bbaef544c4f050db0981ba6e44946a3f79
-types/evse_manager.yaml,28582fa5814c9d98993e1698cbf18111b685081ace83197efc6d791042692a40
+types/evse_manager.yaml,1239ef6fdc57cbec1f6788003c9c72bd80b899ca3a544cef03a3cf1a674b01d3
 types/evse_security.yaml,a80c92d4663bda33412bd32788ba446bc0eafeebcddad706db38e1f988bd133b
-types/iso15118.yaml,c4885e4caac846034f7719b2900ce6c909039c7cbc82a1166a2a1371a32a0b03
+types/iso15118.yaml,b05ccce77acf2b25774f9d34317f241cec786f02636cb943b122277160d6df08
 types/isolation_monitor.yaml,45d98b5072fa5d02a476860fe7d45a7b02f8a05eb6be94327f32dbe159d4ec40
 types/money.yaml,4a7001c50216fcf96caac4fe16db17e23ce5149d000be1de4ac1f0135f5bdb0b
 types/ocpp.yaml,2181f239b0366de85189dbe6cc210ad6b3ab7b6bdeb9ea8aad20fe4410b93bd7
diff --git a/modules/EVSE/Evse15118D20/charger/ISO15118_chargerImpl.cpp b/modules/EVSE/Evse15118D20/charger/ISO15118_chargerImpl.cpp
index 6c37981e9b..2da75da80b 100644
--- a/modules/EVSE/Evse15118D20/charger/ISO15118_chargerImpl.cpp
+++ b/modules/EVSE/Evse15118D20/charger/ISO15118_chargerImpl.cpp
@@ -105,6 +105,10 @@ types::iso15118::EnergyTransferMode get_energy_transfer_mode(const dt::ServiceCa
         requested_energy_transfer = EnergyTransferMode::DC_BPT;
     } else if (service_category == dt::ServiceCategory::DC_ACDP_BPT) {
         requested_energy_transfer = EnergyTransferMode::DC_ACDP_BPT;
+    } else if (service_category == dt::ServiceCategory::MCS) {
+        requested_energy_transfer = EnergyTransferMode::MCS;
+    } else if (service_category == dt::ServiceCategory::MCS_BPT) {
+        requested_energy_transfer = EnergyTransferMode::MCS_BPT;
     }
 
     return requested_energy_transfer;
@@ -856,6 +860,12 @@ void ISO15118_chargerImpl::handle_update_energy_transfer_modes(
         case types::iso15118::EnergyTransferMode::WPT:
             services.push_back(dt::ServiceCategory::WPT);
             break;
+        case types::iso15118::EnergyTransferMode::MCS:
+            services.push_back(dt::ServiceCategory::MCS);
+            break;
+        case types::iso15118::EnergyTransferMode::MCS_BPT:
+            services.push_back(dt::ServiceCategory::MCS_BPT);
+            break;
         }
     }
 
diff --git a/modules/EVSE/EvseManager/EvseManager.cpp b/modules/EVSE/EvseManager/EvseManager.cpp
index 3cbc34808c..6935b414f0 100644
--- a/modules/EVSE/EvseManager/EvseManager.cpp
+++ b/modules/EVSE/EvseManager/EvseManager.cpp
@@ -56,6 +56,14 @@ bool almost_eq(double a, double b) {
 
 void EvseManager::init() {
 
+    if (!config.connector_type.empty()) {
+        try {
+            connector_type = types::evse_manager::string_to_connector_type_enum(config.connector_type);
+        } catch (const std::out_of_range& e) {
+            EVLOG_warning << "Unknown/invalid connector type: " << config.connector_type;
+        }
+    }
+
     store = std::unique_ptr<PersistentStore>(new PersistentStore(r_store, info.id));
 
     random_delay_enabled = config.uk_smartcharging_random_delay_enable;
@@ -129,10 +137,20 @@ void EvseManager::init() {
             // subscribe to run time updates for real initial values (and changes e.g. due to de-rating)
             r_powersupply_DC[0]->subscribe_capabilities([this](const auto& caps) {
                 update_powersupply_capabilities(caps);
-                const bool dc_was_updated = update_supported_energy_transfers(types::iso15118::EnergyTransferMode::DC);
+
+                auto mode = types::iso15118::EnergyTransferMode::DC;
+                auto bpt_mode = types::iso15118::EnergyTransferMode::DC_BPT;
+
+                if (connector_type.has_value() and
+                    connector_type.value() == types::evse_manager::ConnectorTypeEnum::cMCS) {
+                    mode = types::iso15118::EnergyTransferMode::MCS;
+                    bpt_mode = types::iso15118::EnergyTransferMode::MCS_BPT;
+                }
+
+                const bool dc_was_updated = update_supported_energy_transfers(mode);
                 const bool dc_bpt_was_updated =
-                    caps.bidirectional ? update_supported_energy_transfers(types::iso15118::EnergyTransferMode::DC_BPT)
-                                       : false;
+                    caps.bidirectional ? update_supported_energy_transfers(bpt_mode) : false;
+
                 if (dc_was_updated || dc_bpt_was_updated) {
                     this->p_evse->publish_supported_energy_transfer_modes(supported_energy_transfers);
                 }
diff --git a/modules/EVSE/EvseManager/EvseManager.hpp b/modules/EVSE/EvseManager/EvseManager.hpp
index 7d4cbe38dc..b63f24ecd7 100644
--- a/modules/EVSE/EvseManager/EvseManager.hpp
+++ b/modules/EVSE/EvseManager/EvseManager.hpp
@@ -199,6 +199,8 @@ class EvseManager : public Everest::ModuleBase {
     void cancel_reservation(bool signal_event);
     bool is_reserved();
 
+    std::optional<types::evse_manager::ConnectorTypeEnum> connector_type;
+
     ///
     /// \brief Reserve this evse.
     /// \param id                       The reservation id.
diff --git a/modules/EVSE/EvseManager/evse/evse_managerImpl.cpp b/modules/EVSE/EvseManager/evse/evse_managerImpl.cpp
index ebd4a38307..0cc7817f52 100644
--- a/modules/EVSE/EvseManager/evse/evse_managerImpl.cpp
+++ b/modules/EVSE/EvseManager/evse/evse_managerImpl.cpp
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: Apache-2.0
 // Copyright Pionix GmbH and Contributors to EVerest
 #include "evse_managerImpl.hpp"
+#include <algorithm>
 #include <utils/date.hpp>
 
 #include <date/date.h>
@@ -323,13 +324,7 @@ types::evse_manager::Evse evse_managerImpl::handle_get_evse() {
     types::evse_manager::Connector connector;
     // EvseManager currently only supports a single connector with id: 1;
     connector.id = 1;
-    if (!this->mod->config.connector_type.empty()) {
-        try {
-            connector.type = types::evse_manager::string_to_connector_type_enum(this->mod->config.connector_type);
-        } catch (const std::out_of_range& e) {
-            EVLOG_warning << "Evse with id " << evse.id << ": connector type invalid: " << e.what();
-        }
-    }
+    connector.type = mod->connector_type;
 
     connectors.push_back(connector);
     evse.connectors = connectors;
@@ -446,12 +441,41 @@ void evse_managerImpl::handle_set_plug_and_charge_configuration(
 types::evse_manager::UpdateAllowedEnergyTransferModesResult
 evse_managerImpl::handle_update_allowed_energy_transfer_modes(
     std::vector<types::iso15118::EnergyTransferMode>& allowed_energy_transfer_modes) {
-    // TODO(mlitre): Add check for incompatible type
-    if (!mod->r_hlc.empty() && mod->r_hlc[0]) {
-        mod->r_hlc[0]->call_update_energy_transfer_modes(allowed_energy_transfer_modes);
-        return types::evse_manager::UpdateAllowedEnergyTransferModesResult::Accepted;
+    std::vector<types::iso15118::EnergyTransferMode> filtered_energy_transfer_modes;
+
+    if (mod->r_hlc.empty() or !mod->r_hlc[0]) {
+        return types::evse_manager::UpdateAllowedEnergyTransferModesResult::NoHlc;
     }
-    return types::evse_manager::UpdateAllowedEnergyTransferModesResult::NoHlc;
+
+    filtered_energy_transfer_modes.reserve(allowed_energy_transfer_modes.size());
+
+    // TODO(mlitre): Add check for incompatible type(s), for now we just filter out
+    // MCS related stuff and only if a connector type was configured at all;
+    // also TODO: for DC we can check whether BPT can be supported in case DC supply supports it
+    std::copy_if(allowed_energy_transfer_modes.begin(), allowed_energy_transfer_modes.end(),
+                 std::back_inserter(filtered_energy_transfer_modes), [&](types::iso15118::EnergyTransferMode m) {
+                     if (!mod->connector_type.has_value()) {
+                         return true;
+                     }
+
+                     // for MCS we only allow MCS types
+                     if (mod->connector_type == types::evse_manager::ConnectorTypeEnum::cMCS) {
+                         return m == types::iso15118::EnergyTransferMode::MCS or
+                                m == types::iso15118::EnergyTransferMode::MCS_BPT;
+                     }
+
+                     // for everything else, we disallow MCS
+                     return m != types::iso15118::EnergyTransferMode::MCS and
+                            m != types::iso15118::EnergyTransferMode::MCS_BPT;
+                 });
+
+    // check whether at least one mode has survived our filtering
+    if (!filtered_energy_transfer_modes.size()) {
+        return types::evse_manager::UpdateAllowedEnergyTransferModesResult::IncompatibleEnergyTransfer;
+    }
+
+    mod->r_hlc[0]->call_update_energy_transfer_modes(filtered_energy_transfer_modes);
+    return types::evse_manager::UpdateAllowedEnergyTransferModesResult::Accepted;
 }
 
 } // namespace evse
diff --git a/modules/EVSE/OCPP201/conversions.cpp b/modules/EVSE/OCPP201/conversions.cpp
index 71020e9b7a..c81abc5f24 100644
--- a/modules/EVSE/OCPP201/conversions.cpp
+++ b/modules/EVSE/OCPP201/conversions.cpp
@@ -837,6 +837,12 @@ ocpp::v2::EnergyTransferModeEnum to_ocpp_energy_transfer_mode(const types::iso15
         return ocpp::v2::EnergyTransferModeEnum::DC_ACDP_BPT;
     case types::iso15118::EnergyTransferMode::WPT:
         return ocpp::v2::EnergyTransferModeEnum::WPT;
+
+    // revisit: OCPP does not yet know about MCS
+    case types::iso15118::EnergyTransferMode::MCS:
+        return ocpp::v2::EnergyTransferModeEnum::DC;
+    case types::iso15118::EnergyTransferMode::MCS_BPT:
+        return ocpp::v2::EnergyTransferModeEnum::DC_BPT;
     }
 
     throw std::out_of_range("Could not convert EnergyTransferMode");
@@ -1810,6 +1816,14 @@ std::vector<types::iso15118::EnergyTransferMode> to_everest_allowed_energy_trans
     value.reserve(allowed_energy_transfer_modes.size());
     for (const auto& mode : allowed_energy_transfer_modes) {
         value.push_back(to_everest_allowed_energy_transfer_mode(mode));
+        // revisit: at the moment, OCPP does not yet know about MCS types
+        // so in case of DC we allow also the corresponding MCS modes
+        if (mode == ocpp::v2::EnergyTransferModeEnum::DC) {
+            value.push_back(types::iso15118::EnergyTransferMode::MCS);
+        }
+        if (mode == ocpp::v2::EnergyTransferModeEnum::DC_BPT) {
+            value.push_back(types::iso15118::EnergyTransferMode::MCS_BPT);
+        }
     }
     return value;
 }
diff --git a/types/evse_manager.yaml b/types/evse_manager.yaml
index 57297e9c60..c8c290d07a 100644
--- a/types/evse_manager.yaml
+++ b/types/evse_manager.yaml
@@ -497,6 +497,7 @@ types:
       cCCS1: Combined Charging System 1 a.k.a. Combo 1
       cCCS2: Combined Charging System 2 a.k.a. Combo 2
       cG105: JARI G105-1993 a.k.a. CHAdeMO
+      cMCS: Megawatt Charging System (captive cabled) (IEC 63379 Configuration HH)
       cTesla: Tesla Connector
       cType1: IEC62196-2 Type 1 connector a.k.a. J1772
       cType2: IEC62196-2 Type 2 connector a.k.a. Mennekes connector
@@ -522,6 +523,7 @@ types:
       - cCCS1
       - cCCS2
       - cG105
+      - cMCS
       - cTesla
       - cType1
       - cType2
diff --git a/types/iso15118.yaml b/types/iso15118.yaml
index 7160eb1fb0..4a7669c3f1 100644
--- a/types/iso15118.yaml
+++ b/types/iso15118.yaml
@@ -27,6 +27,8 @@ types:
       - DC_ACDP
       - DC_ACDP_BPT
       - WPT
+      - MCS
+      - MCS_BPT
   IsolationStatus:
     description: The different charger isolation status
     type: string