diff --git a/src/anthropic/lib/bedrock/_client.py b/src/anthropic/lib/bedrock/_client.py
index 89c601d9..9d5eb3bc 100644
--- a/src/anthropic/lib/bedrock/_client.py
+++ b/src/anthropic/lib/bedrock/_client.py
@@ -14,7 +14,7 @@
 from ..._compat import model_copy
 from ..._version import __version__
 from ..._streaming import Stream, AsyncStream
-from ..._exceptions import APIStatusError
+from ..._exceptions import AnthropicError, APIStatusError
 from ..._base_client import (
     DEFAULT_MAX_RETRIES,
     BaseClient,
@@ -55,6 +55,12 @@ def _prepare_options(input_options: FinalRequestOptions) -> FinalRequestOptions:
         else:
             options.url = f"/model/{model}/invoke"
 
+    if options.url.startswith('/v1/messages/batches'):
+        raise AnthropicError('The Batch API is not supported in Bedrock yet')
+    
+    if options.url == '/v1/messages/count_tokens':
+        raise AnthropicError('Token counting is not supported in Bedrock yet')
+
     return options
 
 
diff --git a/src/anthropic/lib/vertex/_client.py b/src/anthropic/lib/vertex/_client.py
index 2c1869f8..d2f49029 100644
--- a/src/anthropic/lib/vertex/_client.py
+++ b/src/anthropic/lib/vertex/_client.py
@@ -15,7 +15,7 @@
 from ..._models import FinalRequestOptions
 from ..._version import __version__
 from ..._streaming import Stream, AsyncStream
-from ..._exceptions import APIStatusError
+from ..._exceptions import AnthropicError, APIStatusError
 from ..._base_client import (
     DEFAULT_MAX_RETRIES,
     DEFAULT_CONNECTION_LIMITS,
@@ -452,4 +452,7 @@ def _prepare_options(input_options: FinalRequestOptions, *, project_id: str | No
 
         options.url = f"/projects/{project_id}/locations/{region}/publishers/anthropic/models/count-tokens:rawPredict"
 
+    if options.url.startswith('/v1/messages/batches'):
+        raise AnthropicError('The Batch API is not supported in the Vertex client yet')
+    
     return options