diff --git a/tools/projmgr/include/ProjMgrWorker.h b/tools/projmgr/include/ProjMgrWorker.h
index 86871c6ff..482aa927b 100644
--- a/tools/projmgr/include/ProjMgrWorker.h
+++ b/tools/projmgr/include/ProjMgrWorker.h
@@ -704,6 +704,12 @@ class ProjMgrWorker {
   */
   void SetUpCommand(bool isSetup);
 
+  /**
+   * @brief set flag when running in rpc mode
+   * @param boolean rpcMode
+  */
+  void RpcMode(bool rpcMode);
+
   /**
    * @brief set yaml emitter
    * @param pointer to yaml emitter
@@ -961,6 +967,7 @@ class ProjMgrWorker {
   bool m_relativePaths;
   bool m_cbuild2cmake;
   bool m_isSetupCommand;
+  bool m_rpcMode = false;
   std::set<std::string> m_undefLayerVars;
   StrMap m_packMetadata;
   std::map<std::string, ExecutesItem> m_executes;
diff --git a/tools/projmgr/src/ProjMgr.cpp b/tools/projmgr/src/ProjMgr.cpp
index d170b19c4..28c6463fc 100644
--- a/tools/projmgr/src/ProjMgr.cpp
+++ b/tools/projmgr/src/ProjMgr.cpp
@@ -424,6 +424,7 @@ int ProjMgr::ProcessCommands() {
   } else if (m_command == "rpc") {
     // Launch 'rpc' server over stdin/stdout
     ProjMgrLogger::m_silent = true;
+    m_worker.RpcMode(true);
     if (!m_rpcServer.Run()) {
       return ErrorCode::ERROR;
     }
diff --git a/tools/projmgr/src/ProjMgrRpcServer.cpp b/tools/projmgr/src/ProjMgrRpcServer.cpp
index ed1d9d799..0d9f81e35 100644
--- a/tools/projmgr/src/ProjMgrRpcServer.cpp
+++ b/tools/projmgr/src/ProjMgrRpcServer.cpp
@@ -138,9 +138,10 @@ bool ProjMgrRpcServer::Run(void) {
 
     // Send response
     if (m_contextLength) {
-      cout << CONTENT_LENGTH_HEADER << response.size() << std::endl << std::endl;
+      cout << CONTENT_LENGTH_HEADER << response.size() << std::endl << std::endl << response << std::flush;
+    } else {
+      cout << response << std::endl;
     }
-    cout << response << std::flush;
 
     if (m_debug) {
       log << response << std::endl;
diff --git a/tools/projmgr/src/ProjMgrWorker.cpp b/tools/projmgr/src/ProjMgrWorker.cpp
index f8c8e29fd..9ccb92e94 100644
--- a/tools/projmgr/src/ProjMgrWorker.cpp
+++ b/tools/projmgr/src/ProjMgrWorker.cpp
@@ -298,6 +298,10 @@ void ProjMgrWorker::SetUpCommand(bool isSetup) {
   m_isSetupCommand = isSetup;
 }
 
+void ProjMgrWorker::RpcMode(bool rpcMode) {
+  m_rpcMode = rpcMode;
+}
+
 void ProjMgrWorker::SetEmitter(ProjMgrYamlEmitter* emitter) {
   m_emitter = emitter;
 }
@@ -1919,6 +1923,11 @@ bool ProjMgrWorker::ProcessComponents(ContextItem& context) {
     return false;
   }
 
+  // tolerate component selection errors when in rpc mode
+  if (m_rpcMode) {
+    error = false;
+  }
+
   return !error;
 }
 
diff --git a/tools/projmgr/test/data/TestRpc/minimal.cproject.yml b/tools/projmgr/test/data/TestRpc/minimal.cproject.yml
new file mode 100644
index 000000000..42a444d17
--- /dev/null
+++ b/tools/projmgr/test/data/TestRpc/minimal.cproject.yml
@@ -0,0 +1,7 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/cproject.schema.json
+
+project:
+
+  components:
+    - component: Startup
+    - component: CORE
diff --git a/tools/projmgr/test/data/TestRpc/minimal.csolution.yml b/tools/projmgr/test/data/TestRpc/minimal.csolution.yml
new file mode 100644
index 000000000..469b7f75c
--- /dev/null
+++ b/tools/projmgr/test/data/TestRpc/minimal.csolution.yml
@@ -0,0 +1,15 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/csolution.schema.json
+
+solution:
+
+  compiler: AC6
+
+  target-types:
+    - type: TestHW
+      device: RteTest_ARMCM4_NOFP
+
+  projects:
+    - project: minimal.cproject.yml
+
+  packs:
+    - pack: ARM::RteTest_DFP
diff --git a/tools/projmgr/test/data/TestRpc/unknown-component.cproject.yml b/tools/projmgr/test/data/TestRpc/unknown-component.cproject.yml
new file mode 100644
index 000000000..5fd750e40
--- /dev/null
+++ b/tools/projmgr/test/data/TestRpc/unknown-component.cproject.yml
@@ -0,0 +1,8 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/cproject.schema.json
+
+project:
+
+  components:
+    - component: Startup
+    - component: CORE
+    - component: ARM::UNKNOWN:COMPONENT
diff --git a/tools/projmgr/test/data/TestRpc/unknown-component.csolution.yml b/tools/projmgr/test/data/TestRpc/unknown-component.csolution.yml
new file mode 100644
index 000000000..e236789ca
--- /dev/null
+++ b/tools/projmgr/test/data/TestRpc/unknown-component.csolution.yml
@@ -0,0 +1,15 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/Open-CMSIS-Pack/devtools/main/tools/projmgr/schemas/csolution.schema.json
+
+solution:
+
+  compiler: AC6
+
+  target-types:
+    - type: TestHW
+      device: RteTest_ARMCM4_NOFP
+
+  projects:
+    - project: unknown-component.cproject.yml
+
+  packs:
+    - pack: ARM::RteTest_DFP
diff --git a/tools/projmgr/test/src/ProjMgrRpcTests.cpp b/tools/projmgr/test/src/ProjMgrRpcTests.cpp
index 7e45c02c1..eee1123ca 100644
--- a/tools/projmgr/test/src/ProjMgrRpcTests.cpp
+++ b/tools/projmgr/test/src/ProjMgrRpcTests.cpp
@@ -8,10 +8,9 @@
 #include "ProjMgrTestEnv.h"
 #include "ProjMgrRpcServer.h"
 #include "ProjMgrRpcServerData.h"
-
-
 #include "ProjMgrLogger.h"
 
+#include "ProductInfo.h"
 
 using namespace std;
 
@@ -19,12 +18,66 @@ class ProjMgrRpcTests : public ProjMgr, public ::testing::Test {
 protected:
   ProjMgrRpcTests() {}
   virtual ~ProjMgrRpcTests() {}
+  string FormatRequest(const int id, const string& method, const json& params);
+  vector<json> RunRpcMethods(const string& strIn);
 };
 
-TEST_F(ProjMgrRpcTests, Load_Solution) {
+string ProjMgrRpcTests::FormatRequest(const int id, const string& method, const json& params = json()) {
+  json request;
+  request["jsonrpc"] = "2.0";
+  request["id"] = id;
+  request["method"] = method;
+  if (!params.is_null()) {
+    request["params"] = params;
+  }
+  return request.dump();
+}
+
+vector<json> ProjMgrRpcTests::RunRpcMethods(const string& strIn) {
+  StdStreamRedirect streamRedirect;
+  streamRedirect.SetInString(strIn);
+  char* argv[] = { (char*)"csolution", (char*)"rpc" };
+  EXPECT_EQ(0, RunProjMgr(2, argv, 0));
+  string line;
+  vector<json> responses;
+  istringstream iss(streamRedirect.GetOutString());
+  while (getline(iss, line)) {
+    responses.push_back(json::parse(line));
+  }
+  return responses;
+}
 
+TEST_F(ProjMgrRpcTests, RpcGetVersion) {
+  const auto& requests = FormatRequest(1, "GetVersion");
+  const auto& responses = RunRpcMethods(requests);
+  EXPECT_EQ("2.0", responses[0]["jsonrpc"]);
+  EXPECT_EQ(1, responses[0]["id"]);
+  EXPECT_EQ(string(VERSION_STRING), responses[0]["result"]);
+}
+
+TEST_F(ProjMgrRpcTests, RpcLoadSolution) {
+  const string& csolution = testinput_folder + "/TestRpc/minimal.csolution.yml";
+  const auto& requests =
+    FormatRequest(1, "LoadPacks") +
+    FormatRequest(2, "LoadSolution", json({{ "solution", csolution }}));
+
+  const auto& responses = RunRpcMethods(requests);
+  EXPECT_TRUE(responses[0]["result"]);
+  EXPECT_TRUE(responses[1]["result"]);
+}
 
+TEST_F(ProjMgrRpcTests, RpcLoadSolution_UnknownComponent) {
+  const string& csolution = testinput_folder + "/TestRpc/unknown-component.csolution.yml";
+  const auto& requests =
+    FormatRequest(1, "LoadPacks") +
+    FormatRequest(2, "LoadSolution", json({ { "solution", csolution } })) +
+    FormatRequest(3, "GetLogMessages");
 
+  const auto& responses = RunRpcMethods(requests);
+  EXPECT_TRUE(responses[0]["result"]);
+  EXPECT_TRUE(responses[1]["result"]);
+  EXPECT_EQ("no component was found with identifier 'ARM::UNKNOWN:COMPONENT'",
+    responses[2]["result"]["errors"][0]);
 }
 
 // end of ProjMgrRpcTests.cpp
diff --git a/tools/projmgr/test/src/ProjMgrTestEnv.cpp b/tools/projmgr/test/src/ProjMgrTestEnv.cpp
index 59143b681..6b1a39f60 100644
--- a/tools/projmgr/test/src/ProjMgrTestEnv.cpp
+++ b/tools/projmgr/test/src/ProjMgrTestEnv.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+ * Copyright (c) 2020-2025 Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -44,6 +44,11 @@ void StdStreamRedirect::ClearStringStreams() {
   m_cerrbuffer.str(string());
 }
 
+void StdStreamRedirect::SetInString(const std::string& inStr) {
+  m_inputBuffer = std::istringstream(inStr);
+  std::cin.rdbuf(m_inputBuffer.rdbuf());
+}
+
 StdStreamRedirect::~StdStreamRedirect() {
   // reverse redirect
   std::cout.rdbuf(m_stdoutStreamBuf);
diff --git a/tools/projmgr/test/src/ProjMgrTestEnv.h b/tools/projmgr/test/src/ProjMgrTestEnv.h
index b693dfe9f..757fdf03e 100644
--- a/tools/projmgr/test/src/ProjMgrTestEnv.h
+++ b/tools/projmgr/test/src/ProjMgrTestEnv.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2021 Arm Limited. All rights reserved.
+ * Copyright (c) 2020-2025 Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -31,12 +31,14 @@ class StdStreamRedirect {
   std::string GetOutString();
   std::string GetErrorString();
   void ClearStringStreams();
+  void SetInString(const std::string& inStr);
 
 private:
   std::stringstream m_outbuffer;
   std::stringstream m_cerrbuffer;
   std::streambuf*   m_stdoutStreamBuf;
   std::streambuf*   m_stdcerrStreamBuf;
+  std::istringstream m_inputBuffer;
 };
 
 class TempSwitchCwd {