diff --git a/0001-Adding-basic-anthropic-Support.patch b/0001-Adding-basic-anthropic-Support.patch
new file mode 100644
index 0000000..5cf6eb5
--- /dev/null
+++ b/0001-Adding-basic-anthropic-Support.patch
@@ -0,0 +1,353 @@
+From 8cc9ea9e3ff47891a149cf5346482d499248c7f1 Mon Sep 17 00:00:00 2001
+From: Fardin Hoque <kfhfardin@gmail.com>
+Date: Wed, 17 Dec 2025 03:50:52 -0800
+Subject: [PATCH] Adding basic anthropic Support
+
+---
+ poetry.lock                                   | 191 +++++++++++++++++-
+ pyproject.toml                                |   3 +
+ src/api_interceptors/api_interceptor_httpx.py |  16 +-
+ .../api_interceptor_parser.py                 |   2 +-
+ src/main.py                                   |  13 +-
+ 5 files changed, 214 insertions(+), 11 deletions(-)
+
+diff --git a/poetry.lock b/poetry.lock
+index ba6bff7..636a85d 100644
+--- a/poetry.lock
++++ b/poetry.lock
+@@ -12,6 +12,31 @@ files = [
+     {file = "annotated_types-0.7.0.tar.gz", hash = "sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89"},
+ ]
+ 
++[[package]]
++name = "anthropic"
++version = "0.39.0"
++description = "The official Python library for the anthropic API"
++optional = false
++python-versions = ">=3.8"
++groups = ["main"]
++files = [
++    {file = "anthropic-0.39.0-py3-none-any.whl", hash = "sha256:ea17093ae0ce0e1768b0c46501d6086b5bcd74ff39d68cd2d6396374e9de7c09"},
++    {file = "anthropic-0.39.0.tar.gz", hash = "sha256:94671cc80765f9ce693f76d63a97ee9bef4c2d6063c044e983d21a2e262f63ba"},
++]
++
++[package.dependencies]
++anyio = ">=3.5.0,<5"
++distro = ">=1.7.0,<2"
++httpx = ">=0.23.0,<1"
++jiter = ">=0.4.0,<1"
++pydantic = ">=1.9.0,<3"
++sniffio = "*"
++typing-extensions = ">=4.7,<5"
++
++[package.extras]
++bedrock = ["boto3 (>=1.28.57)", "botocore (>=1.31.57)"]
++vertex = ["google-auth (>=2,<3)"]
++
+ [[package]]
+ name = "anyio"
+ version = "4.11.0"
+@@ -357,6 +382,30 @@ files = [
+ [package.extras]
+ toml = ["tomli ; python_full_version <= \"3.11.0a6\""]
+ 
++[[package]]
++name = "defusedxml"
++version = "0.7.1"
++description = "XML bomb protection for Python stdlib modules"
++optional = false
++python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
++groups = ["main"]
++files = [
++    {file = "defusedxml-0.7.1-py2.py3-none-any.whl", hash = "sha256:a352e7e428770286cc899e2542b6cdaedb2b4953ff269a210103ec58f6198a61"},
++    {file = "defusedxml-0.7.1.tar.gz", hash = "sha256:1bb3032db185915b62d7c6209c5a8792be6a32ab2fedacc84e01b52c51aa3e69"},
++]
++
++[[package]]
++name = "distro"
++version = "1.9.0"
++description = "Distro - an OS platform information API"
++optional = false
++python-versions = ">=3.6"
++groups = ["main"]
++files = [
++    {file = "distro-1.9.0-py3-none-any.whl", hash = "sha256:7bffd925d65168f85027d8da9af6bddab658135b840670a223589bc0c8ef02b2"},
++    {file = "distro-1.9.0.tar.gz", hash = "sha256:2fa77c6fd8940f116ee1d6b94a2f90b13b5ea8d019b98bc8bafdcabcdd9bdbed"},
++]
++
+ [[package]]
+ name = "filelock"
+ version = "3.20.0"
+@@ -726,6 +775,118 @@ files = [
+ colors = ["colorama"]
+ plugins = ["setuptools"]
+ 
++[[package]]
++name = "jiter"
++version = "0.12.0"
++description = "Fast iterable JSON parser."
++optional = false
++python-versions = ">=3.9"
++groups = ["main"]
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++    {file = "jiter-0.12.0-graalpy312-graalpy250_312_native-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:d96b264ab7d34bbb2312dedc47ce07cd53f06835eacbc16dde3761f47c3a9e7f"},
++    {file = "jiter-0.12.0-graalpy312-graalpy250_312_native-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c24e864cb30ab82311c6425655b0cdab0a98c5d973b065c66a3f020740c2324c"},
++    {file = "jiter-0.12.0.tar.gz", hash = "sha256:64dfcd7d5c168b38d3f9f8bba7fc639edb3418abcc74f22fdbe6b8938293f30b"},
++]
++
+ [[package]]
+ name = "jsonpatch"
+ version = "1.33"
+@@ -753,16 +914,34 @@ files = [
+     {file = "jsonpointer-3.0.0.tar.gz", hash = "sha256:2b2d729f2091522d61c3b31f82e11870f60b68f43fbc705cb76bf4b832af59ef"},
+ ]
+ 
++[[package]]
++name = "langchain-anthropic"
++version = "0.3.0"
++description = "An integration package connecting AnthropicMessages and LangChain"
++optional = false
++python-versions = "<4.0,>=3.9"
++groups = ["main"]
++files = [
++    {file = "langchain_anthropic-0.3.0-py3-none-any.whl", hash = "sha256:96b74a9adfcc092cc2ae137d4189ca50e8f5ad9635618024f7c98d8f9fc1076a"},
++    {file = "langchain_anthropic-0.3.0.tar.gz", hash = "sha256:f9b5cbdbf2d5b3432f78f056e474efb10a2c1e37f9a471d3aceb50a0d9f945df"},
++]
++
++[package.dependencies]
++anthropic = ">=0.39.0,<1"
++defusedxml = ">=0.7.1,<0.8.0"
++langchain-core = ">=0.3.17,<0.4.0"
++pydantic = ">=2.7.4,<3.0.0"
++
+ [[package]]
+ name = "langchain-core"
+-version = "1.0.1"
++version = "0.3.80"
+ description = "Building applications with LLMs through composability"
+ optional = false
+-python-versions = "<4.0.0,>=3.10.0"
++python-versions = "<4.0.0,>=3.9.0"
+ groups = ["main"]
+ files = [
+-    {file = "langchain_core-1.0.1-py3-none-any.whl", hash = "sha256:c7ce58fc487359c44166e255cc0009ef30290da0b6307b75091152847919661e"},
+-    {file = "langchain_core-1.0.1.tar.gz", hash = "sha256:d769e8d25854466abb672a721143a01bea11cc6ee2d7dae776aa092556db0a26"},
++    {file = "langchain_core-0.3.80-py3-none-any.whl", hash = "sha256:2141e3838d100d17dce2359f561ec0df52c526bae0de6d4f469f8026c5747456"},
++    {file = "langchain_core-0.3.80.tar.gz", hash = "sha256:29636b82513ab49e834764d023c4d18554d3d719a185d37b019d0a8ae948c6bb"},
+ ]
+ 
+ [package.dependencies]
+@@ -770,7 +949,7 @@ jsonpatch = ">=1.33.0,<2.0.0"
+ langsmith = ">=0.3.45,<1.0.0"
+ packaging = ">=23.2.0,<26.0.0"
+ pydantic = ">=2.7.4,<3.0.0"
+-pyyaml = ">=5.3.0,<7.0.0"
++PyYAML = ">=5.3.0,<7.0.0"
+ tenacity = ">=8.1.0,<8.4.0 || >8.4.0,<10.0.0"
+ typing-extensions = ">=4.7.0,<5.0.0"
+ 
+@@ -2006,4 +2185,4 @@ cffi = ["cffi (>=1.17,<2.0) ; platform_python_implementation != \"PyPy\" and pyt
+ [metadata]
+ lock-version = "2.1"
+ python-versions = "^3.12"
+-content-hash = "45c3eae300151a5e0cee203e7b6a65160bddd3ba2dd2baa5b587a56835f66fca"
++content-hash = "abfc0597b58b9d2d031d5ac54574203e5ef90b75112ade8783098c83eb106426"
+diff --git a/pyproject.toml b/pyproject.toml
+index 19c4205..0d9b541 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -23,6 +23,9 @@ google-genai = "^0.3.0"
+ filelock = "^3.13.0"
+ numpy = "^2.3.4"
+ rich = "^14.2.0"
++langchain-anthropic = "^0.3.0"
++langchain-core = "^0.3.0"
++anthropic = "^0.39.0"
+ 
+ [tool.poetry.group.dev.dependencies]
+ pytest = "^7.3"
+diff --git a/src/api_interceptors/api_interceptor_httpx.py b/src/api_interceptors/api_interceptor_httpx.py
+index 3bd4924..3ad10c7 100644
+--- a/src/api_interceptors/api_interceptor_httpx.py
++++ b/src/api_interceptors/api_interceptor_httpx.py
+@@ -1,4 +1,8 @@
+ import httpx
++from typing import Optional, Callable, Any
++from src.api_interceptors.api_interceptor_parser import UnifiedAPIMetricsExtractor
++from src.models.api_limit_configs_models.api_limit_metrics_model import APIMetrics
++from src.api_metrics.api_metrics_processor import APIMetricsProcessor
+ 
+ class HTTPXInterceptor:
+     def __init__(self):
+@@ -15,10 +19,16 @@ class HTTPXInterceptor:
+         def sync_interceptor(self_client, request, **kwargs):
+             print(f"[HTTPX] {request.method} {request.url}")
+             print(f"[HEADERS] {dict(request.headers)}")
+-            if request.content:
+-                print(f"[BODY] {request.content}")
++            if request.content and request.headers:
++                api_metrics = APIMetrics()
++                api_metrics_processor = APIMetricsProcessor()
++                api_metrics = UnifiedAPIMetricsExtractor.from_httpx_interceptor_request(
++                    request_headers=request.headers,
++                    request_body=request.content
++                )
++                print(api_metrics.api_provider)
++
+             response = interceptor.original_send_sync(self_client, request, **kwargs)
+-            print(f"[RESPONSE] {response.status_code}")
+             return response
+ 
+         async def async_interceptor(self_client, request, **kwargs):
+diff --git a/src/api_interceptors/api_interceptor_parser.py b/src/api_interceptors/api_interceptor_parser.py
+index 9d692aa..3723870 100644
+--- a/src/api_interceptors/api_interceptor_parser.py
++++ b/src/api_interceptors/api_interceptor_parser.py
+@@ -171,7 +171,7 @@ class UnifiedAPIMetricsExtractor:
+     @classmethod
+     def from_httpx_interceptor_request(
+         cls,
+-        request_headers: Dict[str, str],
++        request_headers: Optional[Dict[str, str]],
+         request_body: Optional[bytes]
+     ) -> APIMetrics:
+         """
+diff --git a/src/main.py b/src/main.py
+index 3308cba..b8baeef 100644
+--- a/src/main.py
++++ b/src/main.py
+@@ -1,5 +1,6 @@
+ from src.api_interceptors.api_interceptor_manager import InterceptorManager
+ from langchain_google_genai import ChatGoogleGenerativeAI
++from langchain_anthropic import ChatAnthropic
+ import time
+ 
+ config = {
+@@ -37,7 +38,7 @@ config = {
+ interceptor = InterceptorManager()
+ interceptor.update_api_limit_config(config)
+ interceptor.enable()
+-
++"""
+ model = "models/gemini-2.5-flash-lite"
+ llm = ChatGoogleGenerativeAI(model=model)
+ messages = [
+@@ -59,5 +60,15 @@ for i in range(6):
+     except Exception as e:
+         print(f"Request {i} failed unexpectedly: {type(e).__name__}: {str(e)}")
+         raise
++"""
++# interceptor.disable()
++llm = ChatAnthropic(
++    model="claude-haiku-4-5-20251001",
++    max_tokens=1024,
++    temperature=0.7
++)
++
++response = llm.invoke("1+1=")
++print(response.content)
+ 
+ interceptor.disable()
+\ No newline at end of file
+-- 
+2.43.0
+
diff --git a/poetry.lock b/poetry.lock
index ba6bff7..636a85d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -12,6 +12,31 @@ files = [
     {file = "annotated_types-0.7.0.tar.gz", hash = "sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89"},
 ]
 
+[[package]]
+name = "anthropic"
+version = "0.39.0"
+description = "The official Python library for the anthropic API"
+optional = false
+python-versions = ">=3.8"
+groups = ["main"]
+files = [
+    {file = "anthropic-0.39.0-py3-none-any.whl", hash = "sha256:ea17093ae0ce0e1768b0c46501d6086b5bcd74ff39d68cd2d6396374e9de7c09"},
+    {file = "anthropic-0.39.0.tar.gz", hash = "sha256:94671cc80765f9ce693f76d63a97ee9bef4c2d6063c044e983d21a2e262f63ba"},
+]
+
+[package.dependencies]
+anyio = ">=3.5.0,<5"
+distro = ">=1.7.0,<2"
+httpx = ">=0.23.0,<1"
+jiter = ">=0.4.0,<1"
+pydantic = ">=1.9.0,<3"
+sniffio = "*"
+typing-extensions = ">=4.7,<5"
+
+[package.extras]
+bedrock = ["boto3 (>=1.28.57)", "botocore (>=1.31.57)"]
+vertex = ["google-auth (>=2,<3)"]
+
 [[package]]
 name = "anyio"
 version = "4.11.0"
@@ -357,6 +382,30 @@ files = [
 [package.extras]
 toml = ["tomli ; python_full_version <= \"3.11.0a6\""]
 
+[[package]]
+name = "defusedxml"
+version = "0.7.1"
+description = "XML bomb protection for Python stdlib modules"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+groups = ["main"]
+files = [
+    {file = "defusedxml-0.7.1-py2.py3-none-any.whl", hash = "sha256:a352e7e428770286cc899e2542b6cdaedb2b4953ff269a210103ec58f6198a61"},
+    {file = "defusedxml-0.7.1.tar.gz", hash = "sha256:1bb3032db185915b62d7c6209c5a8792be6a32ab2fedacc84e01b52c51aa3e69"},
+]
+
+[[package]]
+name = "distro"
+version = "1.9.0"
+description = "Distro - an OS platform information API"
+optional = false
+python-versions = ">=3.6"
+groups = ["main"]
+files = [
+    {file = "distro-1.9.0-py3-none-any.whl", hash = "sha256:7bffd925d65168f85027d8da9af6bddab658135b840670a223589bc0c8ef02b2"},
+    {file = "distro-1.9.0.tar.gz", hash = "sha256:2fa77c6fd8940f116ee1d6b94a2f90b13b5ea8d019b98bc8bafdcabcdd9bdbed"},
+]
+
 [[package]]
 name = "filelock"
 version = "3.20.0"
@@ -726,6 +775,118 @@ files = [
 colors = ["colorama"]
 plugins = ["setuptools"]
 
+[[package]]
+name = "jiter"
+version = "0.12.0"
+description = "Fast iterable JSON parser."
+optional = false
+python-versions = ">=3.9"
+groups = ["main"]
+files = [
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+    {file = "jiter-0.12.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:364f1a7294c91281260364222f535bc427f56d4de1d8ffd718162d21fbbd602e"},
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+
 [[package]]
 name = "jsonpatch"
 version = "1.33"
@@ -753,16 +914,34 @@ files = [
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 ]
 
+[[package]]
+name = "langchain-anthropic"
+version = "0.3.0"
+description = "An integration package connecting AnthropicMessages and LangChain"
+optional = false
+python-versions = "<4.0,>=3.9"
+groups = ["main"]
+files = [
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+]
+
+[package.dependencies]
+anthropic = ">=0.39.0,<1"
+defusedxml = ">=0.7.1,<0.8.0"
+langchain-core = ">=0.3.17,<0.4.0"
+pydantic = ">=2.7.4,<3.0.0"
+
 [[package]]
 name = "langchain-core"
-version = "1.0.1"
+version = "0.3.80"
 description = "Building applications with LLMs through composability"
 optional = false
-python-versions = "<4.0.0,>=3.10.0"
+python-versions = "<4.0.0,>=3.9.0"
 groups = ["main"]
 files = [
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 ]
 
 [package.dependencies]
@@ -770,7 +949,7 @@ jsonpatch = ">=1.33.0,<2.0.0"
 langsmith = ">=0.3.45,<1.0.0"
 packaging = ">=23.2.0,<26.0.0"
 pydantic = ">=2.7.4,<3.0.0"
-pyyaml = ">=5.3.0,<7.0.0"
+PyYAML = ">=5.3.0,<7.0.0"
 tenacity = ">=8.1.0,<8.4.0 || >8.4.0,<10.0.0"
 typing-extensions = ">=4.7.0,<5.0.0"
 
@@ -2006,4 +2185,4 @@ cffi = ["cffi (>=1.17,<2.0) ; platform_python_implementation != \"PyPy\" and pyt
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.12"
-content-hash = "45c3eae300151a5e0cee203e7b6a65160bddd3ba2dd2baa5b587a56835f66fca"
+content-hash = "abfc0597b58b9d2d031d5ac54574203e5ef90b75112ade8783098c83eb106426"
diff --git a/pyproject.toml b/pyproject.toml
index 19c4205..0d9b541 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,9 @@ google-genai = "^0.3.0"
 filelock = "^3.13.0"
 numpy = "^2.3.4"
 rich = "^14.2.0"
+langchain-anthropic = "^0.3.0"
+langchain-core = "^0.3.0"
+anthropic = "^0.39.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.3"
diff --git a/src/api_interceptors/api_interceptor_httpx.py b/src/api_interceptors/api_interceptor_httpx.py
index 3bd4924..2e4f833 100644
--- a/src/api_interceptors/api_interceptor_httpx.py
+++ b/src/api_interceptors/api_interceptor_httpx.py
@@ -1,4 +1,20 @@
 import httpx
+from typing import Optional, Callable, Any
+from src.api_interceptors.api_interceptor_parser import UnifiedAPIMetricsExtractor
+from src.models.api_limit_configs_models.api_limit_metrics_model import APIMetrics
+from src.api_metrics.api_metrics_processor import APIMetricsProcessor
+
+def create_throttled_httpx_response(request, api_metrics):
+      """Create a mock HTTPX response for throttled requests"""
+      # Simple message matching GRPC format
+      throttled_message = f"Request throttled for provider: {api_metrics.api_provider}"
+
+      mock_response = httpx.Response(
+          status_code=429,  # Too Many Requests
+          content=throttled_message.encode(),
+          request=request
+      )
+      return mock_response
 
 class HTTPXInterceptor:
     def __init__(self):
@@ -13,12 +29,40 @@ def enable(self) -> None:
         interceptor = self
 
         def sync_interceptor(self_client, request, **kwargs):
-            print(f"[HTTPX] {request.method} {request.url}")
-            print(f"[HEADERS] {dict(request.headers)}")
-            if request.content:
-                print(f"[BODY] {request.content}")
-            response = interceptor.original_send_sync(self_client, request, **kwargs)
-            print(f"[RESPONSE] {response.status_code}")
+            if request.content and request.headers:
+                api_metrics = APIMetrics()
+                api_metrics_processor = APIMetricsProcessor()
+                api_metrics = UnifiedAPIMetricsExtractor.from_httpx_interceptor_request(
+                    request_headers=request.headers,
+                    request_body=request.content
+                )
+                check_throttle = api_metrics_processor.throttle_api_metrics(api_metrics)
+                if check_throttle:
+                    print(f"Throttling Request for provider : {api_metrics.api_provider}")
+                    throttled_response = create_throttled_httpx_response(
+                        request=request,
+                        api_metrics=api_metrics
+                    )
+                    return throttled_response
+            try :
+                response = interceptor.original_send_sync(self_client, request, **kwargs)
+                if api_metrics.api_provider and response.status_code == 200:
+                    print(f"[API Provider] {api_metrics.api_provider}")
+                    print(f"[Model] {api_metrics.model}")
+                    api_metrics_response = UnifiedAPIMetricsExtractor.from_httpx_interceptor_response(
+                        api_metric = api_metrics,
+                        response = response.content
+                    )
+                    print(f"[Input Tokens] {api_metrics_response.input_tokens}")
+                    print(f"[Output Tokens] {api_metrics_response.output_tokens}")
+                    if not api_metrics_response:
+                        raise ValueError("Failed to Parse Token Information")
+                    # updating metrics
+                    check_update = api_metrics_processor.update_api_metrics(api_metrics_response)
+                    if not check_update:
+                        raise ValueError("Failed to Update Metrics Information")
+            except Exception as e:
+                print(f"[HTTPX ERROR] {e}")
             return response
 
         async def async_interceptor(self_client, request, **kwargs):
diff --git a/src/api_interceptors/api_interceptor_parser.py b/src/api_interceptors/api_interceptor_parser.py
index 9d692aa..2e420cd 100644
--- a/src/api_interceptors/api_interceptor_parser.py
+++ b/src/api_interceptors/api_interceptor_parser.py
@@ -4,10 +4,10 @@
 import json
 import grpc.aio
 
-KNOWN_API_PROVIDERS = {
+KNOWN_PROVIDERS = {
     "langchain-google-genai",
-    "langchain-anthropic",
-    "langchain-openai"
+    "anthropic",
+    "openai"
 }
 
 MODEL_FIELD = {
@@ -40,9 +40,10 @@ def extract_api_provider(user_agent: Optional[str], headers: Optional[Dict[str,
                 print(f"Headers not currently processed : {headers}")
         
         if header: 
-            header_prefix = header.split('/', 1)[0]
-            if header_prefix in KNOWN_API_PROVIDERS:
-                return header_prefix
+            lower_header = header.lower()
+            for known_provider in KNOWN_PROVIDERS:
+                if known_provider in lower_header:
+                    return known_provider
             else:
                 print(f"Header Prefix not currently processed:{header}")
         return None
@@ -171,7 +172,7 @@ def from_grpc_interceptor_response(
     @classmethod
     def from_httpx_interceptor_request(
         cls,
-        request_headers: Dict[str, str],
+        request_headers: Optional[Dict[str, str]],
         request_body: Optional[bytes]
     ) -> APIMetrics:
         """
diff --git a/src/main.py b/src/main.py
index 3308cba..65b0607 100644
--- a/src/main.py
+++ b/src/main.py
@@ -1,5 +1,6 @@
 from src.api_interceptors.api_interceptor_manager import InterceptorManager
 from langchain_google_genai import ChatGoogleGenerativeAI
+from langchain_anthropic import ChatAnthropic
 import time
 
 config = {
@@ -37,7 +38,7 @@
 interceptor = InterceptorManager()
 interceptor.update_api_limit_config(config)
 interceptor.enable()
-
+"""
 model = "models/gemini-2.5-flash-lite"
 llm = ChatGoogleGenerativeAI(model=model)
 messages = [
@@ -48,16 +49,26 @@
 for i in range(6):
     try:
         ai_msg = llm.invoke(messages)
-        
+
         # Verify response is valid
         if not hasattr(ai_msg, 'usage_metadata'):
             raise ValueError(f"Request {i}: No usage_metadata found")
-        
+
         print(f"Request {i}: Success - {ai_msg.content[:50]}")
         time.sleep(2)
-        
+
     except Exception as e:
         print(f"Request {i} failed unexpectedly: {type(e).__name__}: {str(e)}")
         raise
+"""
+# interceptor.disable()
+llm = ChatAnthropic(
+    model="claude-haiku-4-5-20251001",
+    max_tokens=1024,
+    temperature=0.7
+)
+
+response = llm.invoke("1+1=")
+print(response.content)
 
 interceptor.disable()
\ No newline at end of file