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API Reference
Mcp Servers
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Update Mcp Server

mcp_servers.modify(strmcp_server_id, McpServerModifyParams**kwargs) -> McpServerModifyResponse
patch/v1/mcp-servers/{mcp_server_id}

Update an existing MCP server configuration

ParametersExpand Collapse
mcp_server_id: str
args: Optional[SequenceNotStr[str]]

The arguments to pass to the command

command: Optional[str]

The command to run the MCP server

env: Optional[Dict[str, str]]

Environment variables to set

server_name: Optional[str]

The name of the MCP server

ReturnsExpand Collapse
McpServerModifyResponse = McpServerModifyResponse

A Stdio MCP server

Accepts one of the following:
class StdioMcpServer: …

A Stdio MCP server

args: List[str]

The arguments to pass to the command

command: str

The command to run (MCP 'local' client will run this command)

server_name: str

The name of the server

id: Optional[str]

The human-friendly ID of the Mcp_server

env: Optional[Dict[str, str]]

Environment variables to set

type: Optional[Literal["sse", "stdio", "streamable_http"]]
Accepts one of the following:
"sse"
"stdio"
"streamable_http"
class SseMcpServer: …

An SSE MCP server

server_name: str

The name of the server

server_url: str

The URL of the server

id: Optional[str]

The human-friendly ID of the Mcp_server

auth_header: Optional[str]

The name of the authentication header (e.g., 'Authorization')

auth_token: Optional[str]

The authentication token or API key value

custom_headers: Optional[Dict[str, str]]

Custom HTTP headers to include with requests

type: Optional[Literal["sse", "stdio", "streamable_http"]]
Accepts one of the following:
"sse"
"stdio"
"streamable_http"
class StreamableHTTPMcpServer: …

A Streamable HTTP MCP server

server_name: str

The name of the server

server_url: str

The URL of the server

id: Optional[str]

The human-friendly ID of the Mcp_server

auth_header: Optional[str]

The name of the authentication header (e.g., 'Authorization')

auth_token: Optional[str]

The authentication token or API key value

custom_headers: Optional[Dict[str, str]]

Custom HTTP headers to include with requests

type: Optional[Literal["sse", "stdio", "streamable_http"]]
Accepts one of the following:
"sse"
"stdio"
"streamable_http"
Update Mcp Server
  • HTTP
  • TypeScript
  • Python
from letta_client import Letta

client = Letta(
    api_key="My API Key",
)
response = client.mcp_servers.modify(
    mcp_server_id="mcp_server_id",
)
print(response)
{
  "args": [
    "string"
  ],
  "command": "command",
  "server_name": "server_name",
  "id": "mcp_server-123e4567-e89b-12d3-a456-426614174000",
  "env": {
    "foo": "string"
  },
  "type": "sse"
}
Returns Examples
{
  "args": [
    "string"
  ],
  "command": "command",
  "server_name": "server_name",
  "id": "mcp_server-123e4567-e89b-12d3-a456-426614174000",
  "env": {
    "foo": "string"
  },
  "type": "sse"
}