diff --git a/otelconf/internal/kv/keyvalue.go b/otelconf/internal/kv/keyvalue.go
new file mode 100644
index 00000000000..97412d1a2b6
--- /dev/null
+++ b/otelconf/internal/kv/keyvalue.go
@@ -0,0 +1,48 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package kv contains function to translate name value pairs into
+// attribute.KeyValue.
+package kv // import "go.opentelemetry.io/contrib/otelconf/internal/kv"
+
+import (
+	"fmt"
+	"strconv"
+
+	"go.opentelemetry.io/otel/attribute"
+)
+
+func FromNameValue(k string, v any) attribute.KeyValue {
+	switch val := v.(type) {
+	case bool:
+		return attribute.Bool(k, val)
+	case int64:
+		return attribute.Int64(k, val)
+	case uint64:
+		return attribute.String(k, strconv.FormatUint(val, 10))
+	case float64:
+		return attribute.Float64(k, val)
+	case int8:
+		return attribute.Int64(k, int64(val))
+	case uint8:
+		return attribute.Int64(k, int64(val))
+	case int16:
+		return attribute.Int64(k, int64(val))
+	case uint16:
+		return attribute.Int64(k, int64(val))
+	case int32:
+		return attribute.Int64(k, int64(val))
+	case uint32:
+		return attribute.Int64(k, int64(val))
+	case float32:
+		return attribute.Float64(k, float64(val))
+	case int:
+		return attribute.Int(k, val)
+	case uint:
+		return attribute.String(k, strconv.FormatUint(uint64(val), 10))
+	case string:
+		return attribute.String(k, val)
+	default:
+		return attribute.String(k, fmt.Sprint(v))
+	}
+}
diff --git a/otelconf/internal/kv/keyvalue_test.go b/otelconf/internal/kv/keyvalue_test.go
new file mode 100644
index 00000000000..b6936e9c02c
--- /dev/null
+++ b/otelconf/internal/kv/keyvalue_test.go
@@ -0,0 +1,41 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package kv
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"go.opentelemetry.io/otel/attribute"
+)
+
+func TestFromNameValue(t *testing.T) {
+	other := struct{}{}
+	for _, tt := range []struct {
+		name string
+		val  any
+		want attribute.KeyValue
+	}{
+		{name: "attr-bool", val: true, want: attribute.Bool("attr-bool", true)},
+		{name: "attr-uint64", val: uint64(164), want: attribute.String("attr-uint64", fmt.Sprintf("%d", 164))},
+		{name: "attr-int64", val: int64(-164), want: attribute.Int64("attr-int64", int64(-164))},
+		{name: "attr-float64", val: float64(64.0), want: attribute.Float64("attr-float64", float64(64.0))},
+		{name: "attr-int8", val: int8(-18), want: attribute.Int64("attr-int8", int64(-18))},
+		{name: "attr-uint8", val: uint8(18), want: attribute.Int64("attr-uint8", int64(18))},
+		{name: "attr-int16", val: int16(-116), want: attribute.Int64("attr-int16", int64(-116))},
+		{name: "attr-uint16", val: uint16(116), want: attribute.Int64("attr-uint16", int64(116))},
+		{name: "attr-int32", val: int32(-132), want: attribute.Int64("attr-int32", int64(-132))},
+		{name: "attr-uint32", val: uint32(132), want: attribute.Int64("attr-uint32", int64(132))},
+		{name: "attr-float32", val: float32(32.0), want: attribute.Float64("attr-float32", float64(32.0))},
+		{name: "attr-int", val: int(-1), want: attribute.Int64("attr-int", int64(-1))},
+		{name: "attr-uint", val: uint(1), want: attribute.String("attr-uint", fmt.Sprintf("%d", 1))},
+		{name: "attr-string", val: "string-val", want: attribute.String("attr-string", "string-val")},
+		{name: "attr-default", val: other, want: attribute.String("attr-default", fmt.Sprintf("%v", other))},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.want, FromNameValue(tt.name, tt.val))
+		})
+	}
+}
diff --git a/otelconf/v0.2.0/resource.go b/otelconf/v0.2.0/resource.go
index 84f3e30dab5..889cc974be3 100644
--- a/otelconf/v0.2.0/resource.go
+++ b/otelconf/v0.2.0/resource.go
@@ -4,47 +4,11 @@
 package otelconf // import "go.opentelemetry.io/contrib/otelconf/v0.2.0"
 
 import (
-	"fmt"
-	"strconv"
-
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/sdk/resource"
-)
 
-func keyVal(k string, v any) attribute.KeyValue {
-	switch val := v.(type) {
-	case bool:
-		return attribute.Bool(k, val)
-	case int64:
-		return attribute.Int64(k, val)
-	case uint64:
-		return attribute.String(k, strconv.FormatUint(val, 10))
-	case float64:
-		return attribute.Float64(k, val)
-	case int8:
-		return attribute.Int64(k, int64(val))
-	case uint8:
-		return attribute.Int64(k, int64(val))
-	case int16:
-		return attribute.Int64(k, int64(val))
-	case uint16:
-		return attribute.Int64(k, int64(val))
-	case int32:
-		return attribute.Int64(k, int64(val))
-	case uint32:
-		return attribute.Int64(k, int64(val))
-	case float32:
-		return attribute.Float64(k, float64(val))
-	case int:
-		return attribute.Int(k, val)
-	case uint:
-		return attribute.String(k, strconv.FormatUint(uint64(val), 10))
-	case string:
-		return attribute.String(k, val)
-	default:
-		return attribute.String(k, fmt.Sprint(v))
-	}
-}
+	"go.opentelemetry.io/contrib/otelconf/internal/kv"
+)
 
 func newResource(res *Resource) (*resource.Resource, error) {
 	if res == nil || res.Attributes == nil {
@@ -53,7 +17,7 @@ func newResource(res *Resource) (*resource.Resource, error) {
 	var attrs []attribute.KeyValue
 
 	for k, v := range res.Attributes {
-		attrs = append(attrs, keyVal(k, v))
+		attrs = append(attrs, kv.FromNameValue(k, v))
 	}
 
 	return resource.Merge(resource.Default(),
diff --git a/otelconf/v0.2.0/resource_test.go b/otelconf/v0.2.0/resource_test.go
index 6fd02b5f263..77bd247f9ba 100644
--- a/otelconf/v0.2.0/resource_test.go
+++ b/otelconf/v0.2.0/resource_test.go
@@ -4,7 +4,6 @@
 package otelconf
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -14,33 +13,16 @@ import (
 	semconv "go.opentelemetry.io/otel/semconv/v1.37.0"
 )
 
-type mockType struct{}
-
 func TestNewResource(t *testing.T) {
 	res, err := resource.Merge(resource.Default(),
 		resource.NewWithAttributes(semconv.SchemaURL,
 			semconv.ServiceName("service-a"),
 		))
-	other := mockType{}
 	require.NoError(t, err)
 	resWithAttrs, err := resource.Merge(resource.Default(),
 		resource.NewWithAttributes(semconv.SchemaURL,
 			semconv.ServiceName("service-a"),
 			attribute.Bool("attr-bool", true),
-			attribute.String("attr-uint64", fmt.Sprintf("%d", 164)),
-			attribute.Int64("attr-int64", int64(-164)),
-			attribute.Float64("attr-float64", float64(64.0)),
-			attribute.Int64("attr-int8", int64(-18)),
-			attribute.Int64("attr-uint8", int64(18)),
-			attribute.Int64("attr-int16", int64(-116)),
-			attribute.Int64("attr-uint16", int64(116)),
-			attribute.Int64("attr-int32", int64(-132)),
-			attribute.Int64("attr-uint32", int64(132)),
-			attribute.Float64("attr-float32", float64(32.0)),
-			attribute.Int64("attr-int", int64(-1)),
-			attribute.String("attr-uint", fmt.Sprintf("%d", 1)),
-			attribute.String("attr-string", "string-val"),
-			attribute.String("attr-default", fmt.Sprintf("%v", other)),
 		))
 	require.NoError(t, err)
 	tests := []struct {
@@ -61,7 +43,7 @@ func TestNewResource(t *testing.T) {
 		{
 			name: "resource-with-attributes-invalid-schema",
 			config: &Resource{
-				SchemaUrl: ptr("https://opentelemetry.io/invalid-schema"),
+				SchemaUrl: ptr("https://opentelemetry.io/"),
 				Attributes: Attributes{
 					"service.name": "service-a",
 				},
@@ -85,20 +67,6 @@ func TestNewResource(t *testing.T) {
 				Attributes: Attributes{
 					"service.name": "service-a",
 					"attr-bool":    true,
-					"attr-int64":   int64(-164),
-					"attr-uint64":  uint64(164),
-					"attr-float64": float64(64.0),
-					"attr-int8":    int8(-18),
-					"attr-uint8":   uint8(18),
-					"attr-int16":   int16(-116),
-					"attr-uint16":  uint16(116),
-					"attr-int32":   int32(-132),
-					"attr-uint32":  uint32(132),
-					"attr-float32": float32(32.0),
-					"attr-int":     int(-1),
-					"attr-uint":    uint(1),
-					"attr-string":  "string-val",
-					"attr-default": other,
 				},
 				SchemaUrl: ptr(semconv.SchemaURL),
 			},
diff --git a/otelconf/v0.3.0/resource.go b/otelconf/v0.3.0/resource.go
index 1b0830445de..5dde362b073 100644
--- a/otelconf/v0.3.0/resource.go
+++ b/otelconf/v0.3.0/resource.go
@@ -4,47 +4,11 @@
 package otelconf // import "go.opentelemetry.io/contrib/otelconf/v0.3.0"
 
 import (
-	"fmt"
-	"strconv"
-
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/sdk/resource"
-)
 
-func keyVal(k string, v any) attribute.KeyValue {
-	switch val := v.(type) {
-	case bool:
-		return attribute.Bool(k, val)
-	case int64:
-		return attribute.Int64(k, val)
-	case uint64:
-		return attribute.String(k, strconv.FormatUint(val, 10))
-	case float64:
-		return attribute.Float64(k, val)
-	case int8:
-		return attribute.Int64(k, int64(val))
-	case uint8:
-		return attribute.Int64(k, int64(val))
-	case int16:
-		return attribute.Int64(k, int64(val))
-	case uint16:
-		return attribute.Int64(k, int64(val))
-	case int32:
-		return attribute.Int64(k, int64(val))
-	case uint32:
-		return attribute.Int64(k, int64(val))
-	case float32:
-		return attribute.Float64(k, float64(val))
-	case int:
-		return attribute.Int(k, val)
-	case uint:
-		return attribute.String(k, strconv.FormatUint(uint64(val), 10))
-	case string:
-		return attribute.String(k, val)
-	default:
-		return attribute.String(k, fmt.Sprint(v))
-	}
-}
+	"go.opentelemetry.io/contrib/otelconf/internal/kv"
+)
 
 func newResource(res *Resource) *resource.Resource {
 	if res == nil {
@@ -53,7 +17,7 @@ func newResource(res *Resource) *resource.Resource {
 
 	var attrs []attribute.KeyValue
 	for _, v := range res.Attributes {
-		attrs = append(attrs, keyVal(v.Name, v.Value))
+		attrs = append(attrs, kv.FromNameValue(v.Name, v.Value))
 	}
 
 	if res.SchemaUrl == nil {
diff --git a/otelconf/v0.3.0/resource_test.go b/otelconf/v0.3.0/resource_test.go
index dd9a3fc86c9..9206796dbb7 100644
--- a/otelconf/v0.3.0/resource_test.go
+++ b/otelconf/v0.3.0/resource_test.go
@@ -4,7 +4,6 @@
 package otelconf
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -13,10 +12,7 @@ import (
 	semconv "go.opentelemetry.io/otel/semconv/v1.37.0"
 )
 
-type mockType struct{}
-
 func TestNewResource(t *testing.T) {
-	other := mockType{}
 	tests := []struct {
 		name         string
 		config       *Resource
@@ -67,40 +63,12 @@ func TestNewResource(t *testing.T) {
 				Attributes: []AttributeNameValue{
 					{Name: "service.name", Value: "service-a"},
 					{Name: "attr-bool", Value: true},
-					{Name: "attr-int64", Value: int64(-164)},
-					{Name: "attr-uint64", Value: uint64(164)},
-					{Name: "attr-float64", Value: float64(64.0)},
-					{Name: "attr-int8", Value: int8(-18)},
-					{Name: "attr-uint8", Value: uint8(18)},
-					{Name: "attr-int16", Value: int16(-116)},
-					{Name: "attr-uint16", Value: uint16(116)},
-					{Name: "attr-int32", Value: int32(-132)},
-					{Name: "attr-uint32", Value: uint32(132)},
-					{Name: "attr-float32", Value: float32(32.0)},
-					{Name: "attr-int", Value: int(-1)},
-					{Name: "attr-uint", Value: uint(1)},
-					{Name: "attr-string", Value: "string-val"},
-					{Name: "attr-default", Value: other},
 				},
 				SchemaUrl: ptr(semconv.SchemaURL),
 			},
 			wantResource: resource.NewWithAttributes(semconv.SchemaURL,
 				semconv.ServiceName("service-a"),
-				attribute.Bool("attr-bool", true),
-				attribute.String("attr-uint64", fmt.Sprintf("%d", 164)),
-				attribute.Int64("attr-int64", int64(-164)),
-				attribute.Float64("attr-float64", float64(64.0)),
-				attribute.Int64("attr-int8", int64(-18)),
-				attribute.Int64("attr-uint8", int64(18)),
-				attribute.Int64("attr-int16", int64(-116)),
-				attribute.Int64("attr-uint16", int64(116)),
-				attribute.Int64("attr-int32", int64(-132)),
-				attribute.Int64("attr-uint32", int64(132)),
-				attribute.Float64("attr-float32", float64(32.0)),
-				attribute.Int64("attr-int", int64(-1)),
-				attribute.String("attr-uint", fmt.Sprintf("%d", 1)),
-				attribute.String("attr-string", "string-val"),
-				attribute.String("attr-default", fmt.Sprintf("%v", other))),
+				attribute.Bool("attr-bool", true)),
 		},
 	}
 	for _, tt := range tests {