Max Isbey
bb6cb029f0
fix: raise clear error for server-to-client requests in stateless mode ( #1827 )
2026-01-05 17:17:54 +00:00
gazzadownunder
d52937b39c
Make refresh_token grant type optional in DCR handler ( #1651 )
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Co-authored-by: Claude <noreply@anthropic.com>
2026-01-05 13:41:45 +00:00
Maxime
78a9504ec1
fix: return HTTP 404 for unknown session IDs instead of 400 ( #1808 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
2025-12-31 14:06:12 +00:00
Ankesh Kumar Thakur
a4bf947540
fix: Token endpoint response for invalid_client ( #1481 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
2025-12-19 18:19:00 +00:00
V
06748eb4c4
fix: Include extra field for context log ( #1535 )
2025-12-19 17:54:03 +00:00
zenlytix
8ac0cab98c
Fix for Url Elicitation issue 1768 ( #1780 )
2025-12-15 18:58:17 +01:00
Anton Pidkuiko
8ac11ec604
fix: allow MIME type parameters in resource validation (RFC 2045) ( #1755 )
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Co-authored-by: Claude <noreply@anthropic.com>
2025-12-09 14:56:40 +00:00
Felix Weinberger
89ff338174
fix: skip priming events and close_sse_stream for old protocol versions ( #1719 )
Main branch checks / checks (push) Has been cancelled
2025-12-04 14:44:08 +00:00
Edison
9ed0b93ceb
fix: handle ClosedResourceError in StreamableHTTP message router ( #1384 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>
2025-12-04 11:36:23 +01:00
Paul Carleton
d3a184119e
Merge commit from fork
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Main branch checks / checks (push) Has been cancelled
* Auto-enable DNS rebinding protection for localhost servers
When a FastMCP server is created with host="127.0.0.1" or "localhost"
and no explicit transport_security is provided, automatically enable
DNS rebinding protection. Both 127.0.0.1 and localhost are allowed
as valid hosts/origins since clients may use either to connect.
* Add tests for auto DNS rebinding protection on localhost
Tests verify that:
- Protection auto-enables for host=127.0.0.1
- Protection auto-enables for host=localhost
- Both 127.0.0.1 and localhost are in allowed hosts/origins
- Protection does NOT auto-enable for other hosts (e.g., 0.0.0.0)
- Explicit transport_security settings are not overridden
* Add IPv6 localhost (::1) support for DNS rebinding protection
Extend auto-enable DNS rebinding protection to also cover IPv6
localhost. When host="::1", protection is now auto-enabled with
appropriate allowed hosts ([::1]:*) and origins (http://[::1] :*).
* Fix import ordering in test file
2025-12-02 13:23:55 +00:00
Felix Weinberger
fa851d93a2
feat: backwards-compatible create_message overloads for SEP-1577 ( #1713 )
2025-12-02 13:17:45 +00:00
Felix Weinberger
281fd4765e
Add SSE polling support (SEP-1699) ( #1654 )
2025-12-02 11:44:49 +00:00
Max Isbey
c92bb2f7ff
SEP-1686: Tasks ( #1645 )
2025-11-28 18:51:58 +00:00
Chris Coutinho
02b7889929
Implement SEP-1036: URL mode elicitation for secure out-of-band interactions ( #1580 )
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Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
2025-11-25 11:00:21 +00:00
Paul Carleton
27279bc157
Update doc string on custom_route ( #1660 )
2025-11-24 19:20:56 +00:00
Felix Weinberger
091afb82dc
Implement SEP-986: Tool name validation ( #1655 )
2025-11-24 16:46:57 +00:00
Tapan Chugh
b19fa6f279
SEP-1330: Elicitation Enum Schema Improvements and Standards Compliance ( #1246 )
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Co-authored-by: Tapan Chugh <tapanc@cs.washington.edu>
Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
2025-11-23 23:32:08 +00:00
Olivier Chafik
71c475588f
Implement SEP-1577 - Sampling With Tools ( #1594 )
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Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Co-authored-by: Claude <noreply@anthropic.com>
2025-11-22 23:58:14 -05:00
Jon Shea
c51936f61f
Add client_secret_basic authentication support ( #1334 )
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Co-authored-by: Paul Carleton <paulc@anthropic.com>
2025-11-20 20:53:37 +00:00
Victorien
116c13e2c6
Refactor func_metadata() implementation ( #1496 )
2025-11-13 20:21:15 +00:00
Max Isbey
89e9c43acf
Get baseline 100% clean coverage ( #1553 )
2025-11-11 14:09:32 +01:00
adam jones
31ae5f4dc4
Relax Accept header requirement for JSON-only responses ( #1500 )
2025-10-27 17:46:04 +00:00
Brandon Shar
1200ba0082
Allow CallToolResult to be returned directly to support _meta field for OpenAI Apps ( #1459 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
2025-10-21 18:52:08 +00:00
Mat Leonard
98f82485bd
feat: add tool metadata in FastMCP.tool decorator ( #1463 )
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Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
2025-10-17 11:18:34 +00:00
daamitt
dcc68ce56b
fix: Set the Server session initialization state immediately after respond… ( #1478 )
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Main branch checks / checks (push) Has been cancelled
Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
2025-10-15 13:56:43 +01:00
Fenn Bailey
cd7253c593
feat: add resource annotations support to FastMCP ( #1468 )
2025-10-14 11:07:37 +01:00
AishwaryaKalloli
b4e50aa9f9
Handles message type Exception in lowlevel/server.py _handle_message function. Mentioned as TODO on line 528. ( #786 )
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Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
2025-10-13 14:29:03 +01:00
Brandon Wu
b8e758b02b
feat: add ability to remove tools ( #1322 )
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Co-authored-by: David Soria Parra <167242713+dsp-ant@users.noreply.github.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
2025-10-06 14:16:50 +01:00
Marcus Shu
df3e428ee8
Improve OAuth protected resource metadata URL construction per RFC 9728 ( #1407 )
2025-10-06 13:52:44 +01:00
Peter Alexander
3e798bfc01
Add icons support for ResourceTemplate ( #1412 )
Main branch checks / checks (push) Has been cancelled
2025-10-01 13:23:46 +01:00
automaton82
9323efad99
Issue 1379 patch - Fix MCP server OAuth not working with Visual Studio Code and others with extra grant_types ( #1380 )
2025-09-29 11:13:16 +01:00
Jon Shea
1940040ac3
Accept additional response_types values from OAuth servers ( #1323 )
2025-09-26 20:29:06 +01:00
Peter Alexander
71889d7387
Implementation of SEP 973 - Additional metadata + icons support ( #1357 )
Main branch checks / checks (push) Has been cancelled
2025-09-24 20:29:04 +01:00
Mike Salvatore
7629fe6b97
Remove "unconditionally" from conditional description ( #1289 )
2025-09-23 17:13:26 +01:00
Max Isbey
4fb975c6dc
feat: add paginated list decorators for prompts, resources, and tools ( #1286 )
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Co-authored-by: Claude <noreply@anthropic.com>
2025-09-23 14:58:06 +01:00
Peter Alexander
7e93a9fc19
Return HTTP 403 for invalid Origin headers ( #1353 )
2025-09-22 16:44:51 +01:00
owengo
b41b9175e8
fix: allow elicitations accepted without content ( #1285 )
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Co-authored-by: Olivier Schiavo <olivier.schiavo@wengo.com>
2025-09-17 15:34:15 +01:00
pchoudhury22
ca5cb4cb67
fix(fastmcp): propagate mimeType in resource template list ( #1186 )
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Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
2025-09-17 14:50:41 +01:00
David Soria Parra
c3717e7ad3
Fix context injection for resources and prompts ( #1336 )
Main branch checks / checks (push) Has been cancelled
2025-09-11 14:30:06 +01:00
Christian Clauss
c47c767ff4
Python lint: Ruff rules for pylint and code complexity ( #525 )
2025-09-05 15:20:14 +01:00
Eleftheria Stein-Kousathana
47d35f0b3c
Allow ping requests before initialization ( #1312 )
2025-09-01 22:37:36 +01:00
Sreenath Somarajapuram
07ae8c0d4e
types: Setting default value for method: Literal ( #1292 )
2025-08-26 16:22:56 +01:00
San Nguyen
eaf7cf41d5
fix: error too many values to unpack (expected 2) ( #1279 )
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Signed-off-by: San Nguyen <vinhsannguyen91@gmail.com>
Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
2025-08-23 21:36:39 +01:00
xavier
f4b2957a20
Added Audio to FastMCP ( #1130 )
2025-08-22 11:45:38 +01:00
Sreenath Somarajapuram
34e3664e69
chore: Remove unused variable notification_options ( #1238 )
2025-08-05 10:44:51 +01:00
Yann Jouanin
68e25d478b
Improved supported for ProtectedResourceMetadata ( #1235 )
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Co-authored-by: Paul Carleton <paulcarletonjr@gmail.com>
2025-08-04 18:29:01 +00:00
Tapan Chugh
6c61058190
chore: Remove unused prompt_manager.py file ( #1229 )
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Co-authored-by: Tapan Chugh <tapanc@cs.washington.edu>
2025-08-04 14:19:07 +01:00
Marcelo Trylesinski
959d4e39ae
Unpack settings in FastMCP ( #1198 )
Main branch checks / checks (push) Has been cancelled
2025-07-26 10:37:48 +02:00
lukacf
b34e7207ad
server: skip duplicate response on CancelledError ( #1153 )
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Co-authored-by: ihrpr <inna@anthropic.com>
2025-07-25 10:16:13 +01:00
leweng
c260e29a92
Fix: Replace threading.Lock with anyio.Lock for Ray deployment compatibility ( #1151 )
2025-07-21 11:22:49 +01:00
