modelcontextprotocol/python-sdk
Watch
1
0
Fork
You've already forked python-sdk
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Client-side 2026-07-28 support: .discover()/.adopt() + Client(mode=); request-metadata green (#2950)

Browse source
This commit is contained in:
Max 2026-06-25 16:09:23 +02:00 • committed by GitHub
commit f226d00d0a
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 2533 additions and 993 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/mcp/server/streamable_http.py
View file

@ -28,6 +28,7 @@ from starlette.types import Receive, Scope, Send
from mcp.server.transport_security import TransportSecurityMiddleware, TransportSecuritySettings
from mcp.shared._context_streams import ContextReceiveStream, ContextSendStream, create_context_streams
from mcp.shared._stream_protocols import ReadStream, WriteStream
from mcp.shared.inbound import MCP_PROTOCOL_VERSION_HEADER
from mcp.shared.message import ServerMessageMetadata, SessionMessage
from mcp.shared.version import is_version_at_least
from mcp.types import (
@ -50,7 +51,6 @@ logger = logging.getLogger(__name__)
# Header names
MCP_SESSION_ID_HEADER = "mcp-session-id"
MCP_PROTOCOL_VERSION_HEADER = "mcp-protocol-version"
LAST_EVENT_ID_HEADER = "last-event-id"
# Content types
@ -818,7 +818,7 @@ class StreamableHTTPServerTransport:
async def _validate_request_headers(self, request: Request, send: Send) -> bool:
# Protocol-version validation lives in the manager's era-routing: only
# values in `SUPPORTED_PROTOCOL_VERSIONS` (or no header at all) reach
# values in `HANDSHAKE_PROTOCOL_VERSIONS` (or no header at all) reach
# this transport, so the legacy version-gate is gone.
return await self._validate_session(request, send)