diff --git a/cmd/dev/cmd_api.go b/cmd/dev/cmd_api.go
index c76e39b..7c3de17 100644
--- a/cmd/dev/cmd_api.go
+++ b/cmd/dev/cmd_api.go
@@ -1,8 +1,8 @@
 package dev
 
 import (
-	"forge.lthn.ai/core/cli/pkg/cli"
 	"dappco.re/go/core/i18n"
+	"forge.lthn.ai/core/cli/pkg/cli"
 )
 
 // addAPICommands adds the 'api' command and its subcommands to the given parent command.
@@ -17,6 +17,6 @@ func addAPICommands(parent *cli.Command) {
 	// Add the 'sync' command to 'api'
 	addSyncCommand(apiCmd)
 
-	// TODO: Add the 'test-gen' command to 'api'
-	// addTestGenCommand(apiCmd)
+	// Add the 'test-gen' command to 'api'
+	addTestGenCommand(apiCmd)
 }
diff --git a/cmd/dev/cmd_api_testgen.go b/cmd/dev/cmd_api_testgen.go
new file mode 100644
index 0000000..62e35e9
--- /dev/null
+++ b/cmd/dev/cmd_api_testgen.go
@@ -0,0 +1,112 @@
+package dev
+
+import (
+	"bytes"
+	"path/filepath"
+	"text/template"
+
+	"dappco.re/go/core/i18n"
+	coreio "dappco.re/go/core/io"
+	"forge.lthn.ai/core/cli/pkg/cli"
+)
+
+func addTestGenCommand(parent *cli.Command) {
+	testGenCmd := &cli.Command{
+		Use:   "test-gen",
+		Short: i18n.T("cmd.dev.api.test_gen.short"),
+		Long:  i18n.T("cmd.dev.api.test_gen.long"),
+		RunE: func(cmd *cli.Command, args []string) error {
+			if err := runTestGen(); err != nil {
+				return cli.Wrap(err, i18n.Label("error"))
+			}
+			cli.Text(i18n.T("i18n.done.sync", "public API tests"))
+			return nil
+		},
+	}
+
+	parent.AddCommand(testGenCmd)
+}
+
+func runTestGen() error {
+	pkgDir := "pkg"
+	internalDirs, err := coreio.Local.List(pkgDir)
+	if err != nil {
+		return cli.Wrap(err, "failed to read pkg directory")
+	}
+
+	for _, dir := range internalDirs {
+		if !dir.IsDir() || dir.Name() == "core" {
+			continue
+		}
+
+		serviceName := dir.Name()
+		internalFile := filepath.Join(pkgDir, serviceName, serviceName+".go")
+		publicDir := serviceName
+		publicTestFile := filepath.Join(publicDir, serviceName+"_test.go")
+
+		if !coreio.Local.IsFile(internalFile) {
+			continue
+		}
+
+		symbols, err := getExportedSymbols(internalFile)
+		if err != nil {
+			return cli.Wrap(err, cli.Sprintf("error getting symbols for service '%s'", serviceName))
+		}
+
+		if len(symbols) == 0 {
+			continue
+		}
+
+		if err := generatePublicAPITestFile(publicDir, publicTestFile, serviceName, symbols); err != nil {
+			return cli.Wrap(err, cli.Sprintf("error generating public API test file for service '%s'", serviceName))
+		}
+	}
+
+	return nil
+}
+
+const publicAPITestTemplate = `// Code generated by "core dev api test-gen"; DO NOT EDIT.
+package {{.ServiceName}}
+
+import (
+	impl "forge.lthn.ai/core/cli/{{.ServiceName}}"
+)
+
+{{range .Symbols}}
+{{- if eq .Kind "type"}}
+type _ = impl.{{.Name}}
+{{- else if eq .Kind "const"}}
+const _ = impl.{{.Name}}
+{{- else if eq .Kind "var"}}
+var _ = impl.{{.Name}}
+{{- else if eq .Kind "func"}}
+var _ = impl.{{.Name}}
+{{- end}}
+{{end}}
+`
+
+func generatePublicAPITestFile(dir, path, serviceName string, symbols []symbolInfo) error {
+	if err := coreio.Local.EnsureDir(dir); err != nil {
+		return err
+	}
+
+	tmpl, err := template.New("publicAPITest").Parse(publicAPITestTemplate)
+	if err != nil {
+		return err
+	}
+
+	data := struct {
+		ServiceName string
+		Symbols     []symbolInfo
+	}{
+		ServiceName: serviceName,
+		Symbols:     symbols,
+	}
+
+	var buf bytes.Buffer
+	if err := tmpl.Execute(&buf, data); err != nil {
+		return err
+	}
+
+	return coreio.Local.Write(path, buf.String())
+}
diff --git a/cmd/dev/cmd_api_testgen_test.go b/cmd/dev/cmd_api_testgen_test.go
new file mode 100644
index 0000000..4ee50c5
--- /dev/null
+++ b/cmd/dev/cmd_api_testgen_test.go
@@ -0,0 +1,70 @@
+package dev
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"dappco.re/go/core/io"
+)
+
+func TestRunTestGen_Good(t *testing.T) {
+	tmpDir := t.TempDir()
+
+	originalWD, err := os.Getwd()
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		_ = os.Chdir(originalWD)
+	})
+	require.NoError(t, os.Chdir(tmpDir))
+
+	serviceDir := filepath.Join(tmpDir, "pkg", "demo")
+	require.NoError(t, io.Local.EnsureDir(serviceDir))
+	require.NoError(t, io.Local.Write(filepath.Join(serviceDir, "demo.go"), `package demo
+
+type Example struct{}
+
+const Answer = 42
+
+var Value = Example{}
+
+func Run() {}
+`))
+
+	require.NoError(t, runTestGen())
+
+	generatedPath := filepath.Join(tmpDir, "demo", "demo_test.go")
+	content, err := io.Local.Read(generatedPath)
+	require.NoError(t, err)
+
+	require.Contains(t, content, `// Code generated by "core dev api test-gen"; DO NOT EDIT.`)
+	require.Contains(t, content, `package demo`)
+	require.Contains(t, content, `impl "forge.lthn.ai/core/cli/demo"`)
+	require.Contains(t, content, `type _ = impl.Example`)
+	require.Contains(t, content, `const _ = impl.Answer`)
+	require.Contains(t, content, `var _ = impl.Value`)
+	require.Contains(t, content, `var _ = impl.Run`)
+}
+
+func TestGeneratePublicAPITestFile_Good(t *testing.T) {
+	tmpDir := t.TempDir()
+
+	require.NoError(t, generatePublicAPITestFile(
+		filepath.Join(tmpDir, "demo"),
+		filepath.Join(tmpDir, "demo", "demo_test.go"),
+		"demo",
+		[]symbolInfo{
+			{Name: "Example", Kind: "type"},
+			{Name: "Answer", Kind: "const"},
+		},
+	))
+
+	content, err := io.Local.Read(filepath.Join(tmpDir, "demo", "demo_test.go"))
+	require.NoError(t, err)
+
+	require.True(t, strings.Contains(content, `type _ = impl.Example`))
+	require.True(t, strings.Contains(content, `const _ = impl.Answer`))
+}
diff --git a/cmd/dev/cmd_dev.go b/cmd/dev/cmd_dev.go
index bcb3fab..88ae1ce 100644
--- a/cmd/dev/cmd_dev.go
+++ b/cmd/dev/cmd_dev.go
@@ -19,6 +19,7 @@
 //
 // API Tools:
 //   - api sync: Synchronize public service APIs
+//   - api test-gen: Generate compile-time API test stubs
 //
 // Dev Environment (VM management):
 //   - install: Download dev environment image
@@ -33,8 +34,8 @@
 package dev
 
 import (
-	"forge.lthn.ai/core/cli/pkg/cli"
 	"dappco.re/go/core/i18n"
+	"forge.lthn.ai/core/cli/pkg/cli"
 
 	_ "dappco.re/go/core/devops/locales"
 )
diff --git a/locales/en.json b/locales/en.json
index c77bc36..24b8f0e 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -8,7 +8,11 @@
       "short": "Multi-repo development workflows",
       "long": "Development workflow commands for managing multiple repositories.\n\nIncludes git operations, forge integration, CI status, and dev environment management.",
       "api": {
-        "short": "API synchronisation tools"
+        "short": "API synchronisation tools",
+        "test_gen": {
+          "short": "Generate public API test stubs",
+          "long": "Scan internal service packages and generate compile-time tests for their public API wrappers."
+        }
       },
       "health": {
         "short": "Quick health check across all repos",