tin-berri 0f5603895c fix(mcp): challenge delegate-auth OAuth servers with upstream resource_metadata (#31255) ... An oauth2 MCP server with delegate_auth_to_upstream=true never prompted the user to sign in. On an unauthenticated initialize the gateway answered locally (200, no tools) and emitted no WWW-Authenticate, so clients like Claude Desktop either connected empty or hit "OAuth probe timeout after 10000ms". #30124 added a bare `continue` in _raise_preemptive_401_for_unauthenticated_servers to stop sending LiteLLM's gateway authorization_uri challenge for delegate-auth servers, expecting the upstream to emit its own challenge. On initialize the gateway never probes upstream, so no challenge ever reached the client. Replace the `continue` with a preemptive 401 carrying the proxied resource_metadata (RFC 9728) challenge, the same form passthrough servers and MCPUpstreamAuthError already use. This keeps #29770 fixed (still no authorization_uri) while restoring the upstream PKCE sign-in prompt.		2026-06-24 20:50:21 -07:00
..
auth	feat(mcp): scope a key to zero MCP servers with no-mcp-servers sentinel (#31029)	2026-06-22 17:08:28 -07:00
guardrail_translation	fix(tests): Add missing mocks for MCP IP filtering and updated APIs (#20652)	2026-02-07 11:30:49 -08:00
outbound_credentials	feat(mcp): graft v2 resolver onto _create_mcp_client (none + api_key static family) (#31058)	2026-06-24 14:53:33 -07:00
test_byok_oauth_endpoints.py	feat(mcp): allow native MCP OAuth support for cursor (#28327)	2026-05-20 15:28:44 -07:00
test_callback_oauth_error_responses.py	Litellm oss staging 250526 (#28770)	2026-05-26 11:57:39 -07:00
test_db_credentials.py	fix(ui): persist Tools-tab MCP OAuth token to DB (#29809)	2026-06-05 22:29:56 -07:00
test_discoverable_endpoints.py	changing expires_in default to use actual slack return details (#29951)	2026-06-08 18:13:06 -07:00
test_is_tool_name_prefixed.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00
test_jwt_mcp_enforcement.py	fix(mcp): resolve team.access_group_ids → MCP servers (#28997)	2026-05-27 12:36:50 -07:00
test_jwt_mcp_simple.py	fix(mcp): resolve team.access_group_ids → MCP servers (#28997)	2026-05-27 12:36:50 -07:00
test_mcp_cost_calculator.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00
test_mcp_custom_fields.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00
test_mcp_debug.py	chore: litellm oss staging (#30968)	2026-06-23 07:31:44 -07:00
test_mcp_discovery.py	fix(mcp): default Linear MCP registry entry to streamable HTTP (#30396)	2026-06-13 14:45:47 -07:00
test_mcp_elicitation_handler.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_env_vars.py	fix(mcp): drop orphaned per-user credential rows when an MCP server is deleted (#30141)	2026-06-10 15:56:58 -07:00
test_mcp_header_alias_utils.py	feat(mcp): Add tool call and tool list support via UI for Oauth mcps (#28454)	2026-05-22 09:04:04 -07:00
test_mcp_hook_extra_headers.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_metadata_preservation.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00
test_mcp_oauth_passthrough.py	[internal copy of #28008] Support MCP OAuth passthrough and issuer-scoped JWT auth (#28356)	2026-06-02 12:22:04 -07:00
test_mcp_oauth_passthrough_cold_start.py	[internal copy of #28008] Support MCP OAuth passthrough and issuer-scoped JWT auth (#28356)	2026-06-02 12:22:04 -07:00
test_mcp_oauth_passthrough_tools.py	feat: litellm oss 110626 (#30202)	2026-06-11 22:30:26 -07:00
test_mcp_partial_update.py	fix(mcp): clear allowed_tools and tool overrides on MCP server edit (#29411)	2026-06-01 21:28:29 -07:00
test_mcp_sampling_completion_flow.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_model_access.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_model_resolution.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_priority_selection.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_request_builder.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_response_conversion.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_sampling_tool_conversion.py	Litellm oss staging 040626 (#29671)	2026-06-04 11:07:20 -07:00
test_mcp_server.py	fix(mcp): resolve toolset tools by the server's known prefix (#31254)	2026-06-24 20:50:16 -07:00
test_mcp_server_identity_env.py	chore: litellm oss 170626 (#30637)	2026-06-17 21:11:12 -07:00
test_mcp_server_manager.py	feat(mcp): graft v2 resolver onto _create_mcp_client (none + api_key static family) (#31058)	2026-06-24 14:53:33 -07:00
test_mcp_session_logging.py	Add MCP semantic conventions to otelv2 (#29468)	2026-06-02 11:45:36 -07:00
test_mcp_sigv4_auth.py	feat(mcp): per-server env vars with global + per-user scopes (#28917)	2026-06-05 20:15:11 -07:00
test_mcp_stale_session.py	fix(mcp): challenge delegate-auth OAuth servers with upstream resource_metadata (#31255)	2026-06-24 20:50:21 -07:00
test_mcp_toolset_scope.py	fix(mcp): resolve toolset tools by the server's known prefix (#31254)	2026-06-24 20:50:16 -07:00
test_oauth2_token_cache.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00
test_openapi_to_mcp_generator.py	fix(mcp): forward extra_headers for OpenAPI MCP tools (#27383)	2026-05-09 15:10:54 -04:00
test_openapi_tool_auth.py	fix(mcp): use canonical proxy_logging_obj, deny when MCP server is unresolvable	2026-05-01 22:28:46 +00:00
test_rest_endpoints.py	fix(mcp): load MCP tool configuration tools via the OBO/passthrough-aware GET path (#29960)	2026-06-08 19:58:51 -07:00
test_semantic_tool_filter.py	chore: litellm oss staging (#30968)	2026-06-23 07:31:44 -07:00
test_short_mcp_tool_prefix.py	fix(mcp): resolve toolset tools by the server's known prefix (#31254)	2026-06-24 20:50:16 -07:00
test_ui_session_utils.py	style: run black formatter on files from main merge	2026-04-17 13:02:59 -07:00