Buat daftar alat yang tersedia di AgentCore gateway
Untuk mencantumkan semua alat yang tersedia yang disediakan AgentCore gateway, buat permintaan POST ke titik akhir MCP gateway dan tentukan tools/list sebagai metode di badan permintaan:
POST /mcp HTTP/1.1
Host: ${GatewayEndpoint}
Content-Type: application/json
Authorization: ${Authorization header}
${RequestBody}
Ganti nilai-nilai berikut:
Respons mengembalikan daftar alat yang tersedia dengan nama, deskripsi, dan skema parameternya.
Contoh kode untuk alat daftar
Untuk melihat contoh daftar alat yang tersedia di gateway, pilih salah satu metode berikut:
contoh
- Python requests package
-
-
import requests
import json
def list_tools(gateway_url, access_token):
headers = {
"Content-Type": "application/json",
"Authorization": f"Bearer {access_token}"
}
payload = {
"jsonrpc": "2.0",
"id": "list-tools-request",
"method": "tools/list"
}
response = requests.post(gateway_url, headers=headers, json=payload)
return response.json()
# Example usage
gateway_url = "https://${GatewayEndpoint}/mcp" # Replace with your actual gateway endpoint
access_token = "${AccessToken}" # Replace with your actual access token
tools = list_tools(gateway_url, access_token)
print(json.dumps(tools, indent=2))
- MCP Client
-
-
import asyncio
from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client
async def execute_mcp(
url,
token,
headers=None
):
default_headers = {
"Authorization": f"Bearer {token}"
}
headers = {**default_headers, **(headers or {})}
async with streamablehttp_client(
url=url,
headers=headers,
) as (
read_stream,
write_stream,
callA,
):
async with ClientSession(read_stream, write_stream) as session:
# 1. Perform initialization handshake
print("Initializing MCP...")
_init_response = await session.initialize()
print(f"MCP Server Initialize successful! - {_init_response}")
# 2. List available tools
print("Listing tools...")
cursor = True
tools = []
while cursor:
next_cursor = cursor
if type(cursor) == bool:
next_cursor = None
list_tools_response = await session.list_tools(next_cursor)
tools.extend(list_tools_response.tools)
cursor = list_tools_response.nextCursor
tool_names = []
if tools:
for tool in tools:
tool_names.append(tool.name)
tool_names_string = "\n".join(tool_names)
print(
f"List MCP tools. # of tools - {len(tools)}"
f"List of tools - \n{tool_names_string}\n"
)
async def main():
url = "https://${GatewayEndpoint}/mcp"
token = "your_bearer_token_here"
# Optional additional headers
additional_headers = {
"Content-Type": "application/json",
}
await execute_mcp(
url=url,
token=token,
headers=additional_headers
)
# Run the async function
if __name__ == "__main__":
asyncio.run(main())
- Strands MCP Client
-
-
from strands.tools.mcp.mcp_client import MCPClient
from mcp.client.streamable_http import streamablehttp_client
import os
def create_streamable_http_transport(mcp_url: str, access_token: str):
return streamablehttp_client(mcp_url, headers={"Authorization": f"Bearer {access_token}"})
def get_full_tools_list(client):
"""
List tools w/ support for pagination
"""
more_tools = True
tools = []
pagination_token = None
while more_tools:
tmp_tools = client.list_tools_sync(pagination_token=pagination_token)
tools.extend(tmp_tools)
if tmp_tools.pagination_token is None:
more_tools = False
else:
more_tools = True
pagination_token = tmp_tools.pagination_token
return tools
def run_agent(mcp_url: str, access_token: str):
mcp_client = MCPClient(lambda: create_streamable_http_transport(mcp_url, access_token))
with mcp_client:
tools = get_full_tools_list(mcp_client)
print(f"Found the following tools: {[tool.tool_name for tool in tools]}")
run_agent(<MCP URL>, <Access token>)
- LangGraph MCP Client
-
-
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
def list_tools(
url,
headers
):
mcp_client = MultiServerMCPClient(
{
"agent": {
"transport": "streamable_http",
"url": url,
"headers": headers,
}
}
)
tools = asyncio.run(mcp_client.get_tools())
tool_details = []
tool_names = []
for tool in tools:
tool_names.append(f"{tool.name}")
tool_detail = f"{tool.name} - {tool.description} \n"
tool_properties = tool.args_schema.get('properties', {})
properties = []
for property_name, tool_property in tool_properties.items():
properties.append(f"{property_name} - {tool_property.get('description', None)} \n")
tool_details.append(f"{tool_detail}{"\n".join(properties)}")
tool_details_string = "\n".join(tool_details)
tool_names_string = "\n".join(tool_names)
print(
f"Langchain: List MCP tools. # of tools - {len(tools)}\n",
f"Langchain: List of tool names - \n{tool_names_string}\n"
f"Langchain: Details of tools - \n{tool_details_string}\n"
)
Jika pencarian diaktifkan pada gateway, maka alat pencarian, x_amz_bedrock_agentcore_search akan terdaftar pertama dalam respon.