diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/ContinuationInstrumentation.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/ContinuationInstrumentation.java
index 2600fe9f49..130c21a8cd 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/ContinuationInstrumentation.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/ContinuationInstrumentation.java
@@ -1,13 +1,13 @@
 package datadog.trace.instrumentation.ratpack;
 
 import static datadog.trace.agent.tooling.ByteBuddyElementMatchers.safeHasSuperType;
+import static datadog.trace.instrumentation.api.AgentTracer.activeSpan;
 import static java.util.Collections.singletonMap;
 import static net.bytebuddy.matcher.ElementMatchers.named;
 import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
 
 import com.google.auto.service.AutoService;
 import datadog.trace.agent.tooling.Instrumenter;
-import io.opentracing.util.GlobalTracer;
 import java.util.Map;
 import net.bytebuddy.asm.Advice;
 import net.bytebuddy.description.method.MethodDescription;
@@ -46,7 +46,7 @@ public final class ContinuationInstrumentation extends Instrumenter.Default {
 
     @Advice.OnMethodEnter(suppress = Throwable.class)
     public static void wrap(@Advice.Argument(value = 0, readOnly = false) Block block) {
-      block = BlockWrapper.wrapIfNeeded(block, GlobalTracer.get().activeSpan());
+      block = BlockWrapper.wrapIfNeeded(block, activeSpan());
     }
 
     public void muzzleCheck(final PathBinding binding) {
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/DefaultExecutionInstrumentation.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/DefaultExecutionInstrumentation.java
index a2d59bc293..2747ecc132 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/DefaultExecutionInstrumentation.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java/datadog/trace/instrumentation/ratpack/DefaultExecutionInstrumentation.java
@@ -1,5 +1,6 @@
 package datadog.trace.instrumentation.ratpack;
 
+import static datadog.trace.instrumentation.api.AgentTracer.activeSpan;
 import static java.util.Collections.singletonMap;
 import static net.bytebuddy.matcher.ElementMatchers.nameStartsWith;
 import static net.bytebuddy.matcher.ElementMatchers.named;
@@ -7,8 +8,7 @@ import static net.bytebuddy.matcher.ElementMatchers.takesArgument;
 
 import com.google.auto.service.AutoService;
 import datadog.trace.agent.tooling.Instrumenter;
-import io.opentracing.Span;
-import io.opentracing.util.GlobalTracer;
+import datadog.trace.instrumentation.api.AgentSpan;
 import java.util.Map;
 import net.bytebuddy.asm.Advice;
 import net.bytebuddy.description.method.MethodDescription;
@@ -56,7 +56,7 @@ public final class DefaultExecutionInstrumentation extends Instrumenter.Default
        * Here we pass along the span instead of a continuation because we aren't sure the callback
        * will actually be called.
        */
-      final Span span = GlobalTracer.get().activeSpan();
+      final AgentSpan span = activeSpan();
       onError = ActionWrapper.wrapIfNeeded(onError, span);
       segment = ActionWrapper.wrapIfNeeded(segment, span);
     }
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ActionWrapper.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ActionWrapper.java
index ffd62209fc..d118c64a1f 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ActionWrapper.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ActionWrapper.java
@@ -1,18 +1,18 @@
 package datadog.trace.instrumentation.ratpack;
 
-import datadog.trace.context.TraceScope;
-import io.opentracing.Scope;
-import io.opentracing.Span;
-import io.opentracing.util.GlobalTracer;
+import static datadog.trace.instrumentation.api.AgentTracer.activateSpan;
+
+import datadog.trace.instrumentation.api.AgentScope;
+import datadog.trace.instrumentation.api.AgentSpan;
 import lombok.extern.slf4j.Slf4j;
 import ratpack.func.Action;
 
 @Slf4j
 public class ActionWrapper<T> implements Action<T> {
   private final Action<T> delegate;
-  private final Span span;
+  private final AgentSpan span;
 
-  private ActionWrapper(final Action<T> delegate, final Span span) {
+  private ActionWrapper(final Action<T> delegate, final AgentSpan span) {
     assert span != null;
     this.delegate = delegate;
     this.span = span;
@@ -20,15 +20,13 @@ public class ActionWrapper<T> implements Action<T> {
 
   @Override
   public void execute(final T t) throws Exception {
-    try (final Scope scope = GlobalTracer.get().scopeManager().activate(span, false)) {
-      if (scope instanceof TraceScope) {
-        ((TraceScope) scope).setAsyncPropagation(true);
-      }
+    try (final AgentScope scope = activateSpan(span, false)) {
+      scope.setAsyncPropagation(true);
       delegate.execute(t);
     }
   }
 
-  public static <T> Action<T> wrapIfNeeded(final Action<T> delegate, final Span span) {
+  public static <T> Action<T> wrapIfNeeded(final Action<T> delegate, final AgentSpan span) {
     if (delegate instanceof ActionWrapper || span == null) {
       return delegate;
     }
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/BlockWrapper.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/BlockWrapper.java
index 4803af1242..3d61d444b0 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/BlockWrapper.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/BlockWrapper.java
@@ -1,18 +1,18 @@
 package datadog.trace.instrumentation.ratpack;
 
-import datadog.trace.context.TraceScope;
-import io.opentracing.Scope;
-import io.opentracing.Span;
-import io.opentracing.util.GlobalTracer;
+import static datadog.trace.instrumentation.api.AgentTracer.activateSpan;
+
+import datadog.trace.instrumentation.api.AgentScope;
+import datadog.trace.instrumentation.api.AgentSpan;
 import lombok.extern.slf4j.Slf4j;
 import ratpack.func.Block;
 
 @Slf4j
 public class BlockWrapper implements Block {
   private final Block delegate;
-  private final Span span;
+  private final AgentSpan span;
 
-  private BlockWrapper(final Block delegate, final Span span) {
+  private BlockWrapper(final Block delegate, final AgentSpan span) {
     assert span != null;
     this.delegate = delegate;
     this.span = span;
@@ -20,15 +20,13 @@ public class BlockWrapper implements Block {
 
   @Override
   public void execute() throws Exception {
-    try (final Scope scope = GlobalTracer.get().scopeManager().activate(span, false)) {
-      if (scope instanceof TraceScope) {
-        ((TraceScope) scope).setAsyncPropagation(true);
-      }
+    try (final AgentScope scope = activateSpan(span, false)) {
+      scope.setAsyncPropagation(true);
       delegate.execute();
     }
   }
 
-  public static Block wrapIfNeeded(final Block delegate, final Span span) {
+  public static Block wrapIfNeeded(final Block delegate, final AgentSpan span) {
     if (delegate instanceof BlockWrapper || span == null) {
       return delegate;
     }
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ErrorHandlerAdvice.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ErrorHandlerAdvice.java
index 55d13dbaf2..b79d7927b7 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ErrorHandlerAdvice.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/ErrorHandlerAdvice.java
@@ -1,17 +1,18 @@
 package datadog.trace.instrumentation.ratpack;
 
-import static datadog.trace.instrumentation.ratpack.RatpackServerDecorator.DECORATE;
-
-import io.opentracing.Span;
 import java.util.Optional;
+
+import datadog.trace.instrumentation.api.AgentSpan;
 import net.bytebuddy.asm.Advice;
 import ratpack.handling.Context;
 
+import static datadog.trace.instrumentation.ratpack.RatpackServerDecorator.DECORATE;
+
 public class ErrorHandlerAdvice {
   @Advice.OnMethodEnter(suppress = Throwable.class)
   public static void captureThrowable(
       @Advice.Argument(0) final Context ctx, @Advice.Argument(1) final Throwable throwable) {
-    final Optional<Span> span = ctx.maybeGet(Span.class);
+    final Optional<AgentSpan> span = ctx.maybeGet(AgentSpan.class);
     if (span.isPresent()) {
       DECORATE.onError(span.get(), throwable);
     }
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/RatpackServerDecorator.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/RatpackServerDecorator.java
index fdc6e9479b..f72d002c8d 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/RatpackServerDecorator.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/RatpackServerDecorator.java
@@ -3,7 +3,7 @@ package datadog.trace.instrumentation.ratpack;
 import com.google.common.net.HostAndPort;
 import datadog.trace.agent.decorator.HttpServerDecorator;
 import datadog.trace.api.DDTags;
-import io.opentracing.Span;
+import datadog.trace.instrumentation.api.AgentSpan;
 import java.net.URI;
 import lombok.extern.slf4j.Slf4j;
 import ratpack.handling.Context;
@@ -70,7 +70,7 @@ public class RatpackServerDecorator extends HttpServerDecorator<Request, Request
     }
   }
 
-  public Span onContext(final Span span, final Context ctx) {
+  public AgentSpan onContext(final AgentSpan span, final Context ctx) {
 
     String description = ctx.getPathBinding().getDescription();
     if (description == null || description.isEmpty()) {
@@ -86,7 +86,7 @@ public class RatpackServerDecorator extends HttpServerDecorator<Request, Request
   }
 
   @Override
-  public Span onError(final Span span, final Throwable throwable) {
+  public AgentSpan onError(final AgentSpan span, final Throwable throwable) {
     // Attempt to unwrap ratpack.handling.internal.HandlerException without direct reference.
     if (throwable instanceof Error && throwable.getCause() != null) {
       return super.onError(span, throwable.getCause());
diff --git a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/TracingHandler.java b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/TracingHandler.java
index 236e1c5ab4..0c34da95b4 100644
--- a/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/TracingHandler.java
+++ b/dd-java-agent/instrumentation/ratpack-1.4/src/main/java8/datadog/trace/instrumentation/ratpack/TracingHandler.java
@@ -1,14 +1,13 @@
 package datadog.trace.instrumentation.ratpack;
 
+import static datadog.trace.instrumentation.api.AgentTracer.activateSpan;
+import static datadog.trace.instrumentation.api.AgentTracer.startSpan;
 import static datadog.trace.instrumentation.ratpack.RatpackServerDecorator.DECORATE;
 
-import datadog.trace.context.TraceScope;
+import datadog.trace.instrumentation.api.AgentScope;
+import datadog.trace.instrumentation.api.AgentSpan;
 import io.netty.util.Attribute;
 import io.netty.util.AttributeKey;
-import io.opentracing.Scope;
-import io.opentracing.Span;
-import io.opentracing.Tracer;
-import io.opentracing.util.GlobalTracer;
 import ratpack.handling.Context;
 import ratpack.handling.Handler;
 import ratpack.http.Request;
@@ -20,35 +19,32 @@ public final class TracingHandler implements Handler {
    * This constant is copied over from datadog.trace.instrumentation.netty41.AttributeKeys. The key
    * string must be kept consistent.
    */
-  public static final AttributeKey<Span> SERVER_ATTRIBUTE_KEY =
+  public static final AttributeKey<AgentSpan> SERVER_ATTRIBUTE_KEY =
       AttributeKey.valueOf(
           "datadog.trace.instrumentation.netty41.server.HttpServerTracingHandler.span");
 
   @Override
   public void handle(final Context ctx) {
-    final Tracer tracer = GlobalTracer.get();
     final Request request = ctx.getRequest();
 
-    final Attribute<Span> spanAttribute =
+    final Attribute<AgentSpan> spanAttribute =
         ctx.getDirectChannelAccess().getChannel().attr(SERVER_ATTRIBUTE_KEY);
-    final Span nettySpan = spanAttribute.get();
+    final AgentSpan nettySpan = spanAttribute.get();
 
     // Relying on executor instrumentation to assume the netty span is in context as the parent.
-    final Span ratpackSpan = tracer.buildSpan("ratpack.handler").start();
+    final AgentSpan ratpackSpan = startSpan("ratpack.handler");
     DECORATE.afterStart(ratpackSpan);
     DECORATE.onConnection(ratpackSpan, request);
     DECORATE.onRequest(ratpackSpan, request);
     ctx.getExecution().add(ratpackSpan);
 
-    try (final Scope scope = tracer.scopeManager().activate(ratpackSpan, false)) {
-      if (scope instanceof TraceScope) {
-        ((TraceScope) scope).setAsyncPropagation(true);
-      }
+    try (final AgentScope scope = activateSpan(ratpackSpan, false)) {
+      scope.setAsyncPropagation(true);
 
       ctx.getResponse()
           .beforeSend(
               response -> {
-                try (final Scope ignored = tracer.scopeManager().activate(ratpackSpan, false)) {
+                try (final AgentScope ignored = activateSpan(ratpackSpan, false)) {
                   if (nettySpan != null) {
                     // Rename the netty span resource name with the ratpack route.
                     DECORATE.onContext(nettySpan, ctx);