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remove max message size #1105

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Merged
merged 1 commit into from
Jul 8, 2025
Merged

remove max message size #1105

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9 changes: 0 additions & 9 deletions src/mcp/server/streamable_http.py
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Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,6 @@

logger = logging.getLogger(__name__)

# Maximum size for incoming messages
MAXIMUM_MESSAGE_SIZE = 4 * 1024 * 1024 # 4MB

# Header names
MCP_SESSION_ID_HEADER = "mcp-session-id"
Expand Down Expand Up @@ -329,13 +327,6 @@ async def _handle_post_request(self, scope: Scope, request: Request, receive: Re

# Parse the body - only read it once
body = await request.body()
if len(body) > MAXIMUM_MESSAGE_SIZE:
response = self._create_error_response(
"Payload Too Large: Message exceeds maximum size",
HTTPStatus.REQUEST_ENTITY_TOO_LARGE,
)
await response(scope, receive, send)
return

try:
raw_message = json.loads(body)
Expand Down
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