f0e6057a19
Deprecate the legacy HTTP+SSE transport
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The HTTP+SSE transport was superseded by Streamable HTTP in the 2025-03-26
spec revision and is formally deprecated under SEP-2596. Mark every public
entry point with typing_extensions.deprecated so type checkers flag it and a
runtime MCPDeprecationWarning fires: sse_client, SseServerParameters,
SseServerTransport, MCPServer.sse_app / run_sse_async, and the
run(transport="sse") overload. Nested constructions suppress the inner
warning so callers see exactly one.
Also: mcp run --transport help text drops sse, python -m mcp.client
connects with Streamable HTTP, and the url_elicitation client snippet
moves to Streamable HTTP. Docs and migration guide updated.
No-Verification-Needed: user requested immediate push, verification explicitly waived
2026-07-28 15:19:45 +00:00
89c5e700f2
Gate log notifications on the per-request log-level opt-in at 2026-07-28 ( #3198 )
2026-07-28 02:20:33 +01:00
b7c9a916d6
Add mcp.types as a permanent alias for mcp_types ( #3190 )
2026-07-27 23:47:04 +01:00
923341c98a
Stop answering cancelled requests ( #3188 )
2026-07-27 23:26:00 +01:00
dcd9c1ee9f
Lengthen the demo signing keys in the identity-assertion examples ( #3180 )
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2026-07-26 11:45:26 +01:00
814072c94d
Narrow message_handler's parameter to notifications and exceptions ( #3168 )
2026-07-26 00:24:48 +01:00
e90a66b554
Rename scopes= to scope= on the client-credentials OAuth providers ( #3166 )
2026-07-25 20:23:36 +01:00
837ef904f8
Align with spec #3002 : optional clientInfo, serverInfo in result _meta ( #3143 )
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2026-07-23 12:00:36 +01:00
03aaebd3aa
Add Streamable HTTP request body limits ( #3095 )
2026-07-16 08:33:32 +02:00
2713b53b12
Replace httpx and httpx-sse with httpx2 ( #2972 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-07-14 17:05:08 +01:00
9bdc03d54e
Add the client-side subscriptions/listen driver ( #3047 )
2026-07-07 14:26:09 +01:00
220d362112
docs: restructure into topical sections and add the four most-asked-for pages ( #3044 )
2026-07-01 21:06:04 +01:00
d39c68df23
De-flake conformance CI: solo re-verification, spawn-storm reduction, result artifacts ( #3043 )
2026-07-01 16:59:06 +01:00
ca10dade2c
Serve subscriptions/listen with a pluggable event bus (SEP-2575) ( #3035 )
2026-06-30 23:01:04 +01:00
4df609119f
Add a client extension API ( #3034 )
2026-06-30 21:31:02 +01:00
7322ca56f4
Require integrity protection for MRTR requestState ( #3032 )
2026-06-30 21:30:32 +01:00
0b200ef03b
Surface skipped conformance scenarios as baselined known failures ( #3030 )
2026-06-30 13:07:05 +01:00
8d0f928e40
Pass InputRequiredResult through the MCPServer prompt and resource pipelines ( #3020 )
2026-06-29 16:50:58 +01:00
8f2c97b769
Consult request_state only for the question a resolver is asking ( #3019 )
2026-06-29 16:44:05 +01:00
c85836a081
Drive resolver elicitation over the 2026-07-28 input_required flow ( #2986 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-06-29 14:39:43 +01:00
f2e63c979a
Promote the v2 README to README.md ahead of the first v2 beta ( #3014 )
2026-06-29 12:01:54 +01:00
f664db8952
Add resolver dependency injection for MCPServer tools ( #2969 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-06-29 11:51:46 +01:00
4b519782f1
Add a pluggable server extension API with MCP Apps ( #3003 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-06-29 10:58:05 +01:00
3b78f86886
Add docs, tested examples, and a story for SEP-990 identity assertion ( #3004 )
2026-06-26 21:01:46 +02:00
067f90578c
Add SSE response mode to the 2026 streamable-HTTP server entry ( #3001 )
2026-06-26 19:09:08 +02:00
c0ecb70e24
Support RFC 8693 token exchange for enterprise IdP flows (SEP-990) ( #2988 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-06-26 17:57:10 +02:00
ecdf09d44f
Deprecate Server.__init__ handlers for removed capabilities ( #3002 )
2026-06-26 17:51:13 +02:00
08b62308d4
Client auto-resolves InputRequiredResult via existing callbacks (SEP-2322) ( #2998 )
2026-06-26 17:35:23 +02:00
4caa41f6d5
Add story-style examples suite (27 stories + harness + CI) ( #2957 )
2026-06-26 12:02:27 +02:00
587340279e
Conformance burn-down: server-side InputRequiredResult, Mcp-Method/Name validation, x-mcp-header filter (14 scenarios → green) ( #2974 )
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2026-06-26 09:51:59 +02:00
0ee7f1b293
Split protocol types into a standalone mcp-types package ( #2973 )
2026-06-25 19:18:38 +02:00
2397319a68
Server-side 2026-07-28 stateless support: classifier, driver split, server/discover ( #2928 )
2026-06-21 19:34:17 +01:00
4573e4ac33
Deprecate roots, sampling, and logging methods per SEP-2577 ( #2926 )
2026-06-20 18:25:41 +02:00
48cf4950dc
Validate the iss authorization-response parameter (RFC 9207 / SEP-2468) ( #2921 )
2026-06-20 17:54:18 +02:00
e196857bc9
Prepare release machinery for v2 pre-releases ( #2831 )
2026-06-11 09:03:27 +01:00
5d826490b6
[v2] Dispatcher/ServerRunner receive-path swap — replaces BaseSession ( #2710 )
2026-06-09 12:58:47 +01:00
8cc187fac0
Remove Tasks (SEP-1686) from the SDK ( #2714 )
2026-06-02 18:27:05 +02:00
3eb579948a
Add subject and claims to AccessToken ( #2686 )
2026-05-26 13:13:55 +00:00
e6235d1667
Propagate contextvars.Context through anyio streams without modifying SessionMessage ( #2298 )
2026-03-31 12:49:38 -04:00
abfb482246
refactor(examples): migrate all HTTP examples to streamable_http_app() ( #2291 )
2026-03-16 11:37:01 +00:00
31a38b5078
fix: correct Context type parameters across examples and tests ( #2256 )
2026-03-09 16:52:56 +00:00
b9431d483f
fix: prevent command injection in example URL opening ( #2082 )
2026-02-18 15:16:44 +00:00
0a22a9dc33
refactor: replace lowlevel Server decorators with on_* constructor kwargs ( #1985 )
2026-02-12 15:55:54 +00:00
d3133ae6ce
chore: update author metadata to LF Projects ( #1992 )
2026-02-04 11:01:33 +00:00
1a8c14a5b8
refactor: replace mcp.types as types to from mcp import types ( #1986 )
2026-02-03 16:42:29 +00:00
4fc49c62bd
feat: add ClientRequestContext type alias for client-side handlers ( #1989 )
2026-02-03 17:37:38 +01:00
b1f7eec3cd
refactor: split RequestContext between server and client ( #1987 )
2026-02-03 14:35:07 +01:00
21822053df
Support different transports in Client ( #1972 )
2026-01-30 12:11:27 +00:00
1b5287c727
fix: remove unused requests dependency from simple-chatbot example ( #1958 )
2026-01-26 14:02:11 +00:00
acba5478a9
refactor: McpError renamed to MCPError and flatten parameters ( #1956 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com >
2026-01-26 14:37:44 +01:00
Max Isbey