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lowlevel-server
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221 Commits

Author SHA1 Message Date
Marcelo Trylesinski a81db711ac refactor: lowlevel Server 2026-02-02 13:24:55 +01:00
Marcelo Trylesinski 14744c66c5 Add tests for MCPServer.read_resource exception handling (#1957) 2026-01-27 13:49:06 +01:00
Marcelo Trylesinski 6f0e8e7851 refactor: code style improvements and formatting cleanup (#1962) 
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-27 13:48:52 +01:00
Marcelo Trylesinski acba5478a9 refactor: McpError renamed to MCPError and flatten parameters (#1956) 
Co-authored-by: Max Isbey <224885523+maxisbey@users.noreply.github.com>
 2026-01-26 14:37:44 +01:00
Marcelo Trylesinski 65c614e48e Rename FastMCP to MCPServer (#1951) 2026-01-25 14:45:52 +01:00
Max Isbey a7ddfdae07 ci: add strict-no-cover to detect unnecessary coverage pragmas (#1897) 2026-01-23 21:00:20 +01:00
Marcelo Trylesinski f0ab53e194 Add meta to Client methods (#1923) 2026-01-22 14:50:39 +01:00
Marcelo Trylesinski 7b728a243e refactor: drop unused logger/logging (#1926) 2026-01-22 11:56:41 +01:00
Marcelo Trylesinski 656f887aff fix: replace http code by jsonrpc (#1920) 2026-01-21 18:37:55 +01:00
Marcelo Trylesinski 3bcdc1763f refactor: create the types subpackage, and the jsonrpc module (#1918) 2026-01-21 16:49:07 +01:00
Marcelo Trylesinski ae7793efd6 refactor: avoid double JSON parsing (#1917) 2026-01-21 13:07:05 +01:00
Marcelo Trylesinski 6d463bb353 refactor: replace AnyFunction by proper types (#1916) 2026-01-21 13:06:46 +01:00
Marcelo Trylesinski 3dc8b72041 refactor: replace pydantic_core.from_json by json.loads (#1912) 2026-01-19 20:04:28 +01:00
Max Isbey 34e66a3812 refactor: move streamable HTTP app creation from FastMCP to lowlevel Server (#1899) 2026-01-19 18:48:04 +01:00
Marcelo Trylesinski 1c258ae203 Don't block the event loop on non-async functions (#1909) 2026-01-19 14:47:37 +01:00
Marcelo Trylesinski 5fdd48a0d3 Completely drop RootModel from types module (#1910) 2026-01-19 14:29:15 +01:00
Marcelo Trylesinski f4672c5084 Drop RootModel from JSONRPCMessage (#1908) 2026-01-19 14:04:15 +01:00
Felix Weinberger d41d0c0128 chore: add D212 lint rule to enforce Google-style docstrings (#1892) 2026-01-16 16:10:52 +00:00
Marcelo Trylesinski 8adb5bdce8 refactor: move transport-specific parameters from FastMCP constructor to run() (#1898) 
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
 2026-01-16 15:16:20 +00:00
Max Isbey 5d80f4efc8 refactor: move inline imports to module level (#1893) 2026-01-16 14:54:08 +00:00
Marcelo Trylesinski e94b386a13 refactor: use snake case instead of camel case in types (#1894) 2026-01-16 15:51:27 +01:00
Max Isbey 7080fcf1e6 refactor: move inline imports to top of routes.py (#1888) 2026-01-16 15:05:47 +01:00
Felix Weinberger 0622babbd9 fix: URL-decode parameters extracted from resource templates (#1864) 2026-01-16 13:47:21 +00:00
Marcelo Trylesinski edf0950a6a Revert mount_path parameter from FastMCP (#1881) 2026-01-16 13:23:08 +00:00
Marcelo Trylesinski 2ce41a8347 Drop dependencies parameter from FastMCP (#1877) 2026-01-16 08:59:44 +00:00
Felix Weinberger cfb2909631 fix: change Resource URI fields from AnyUrl to str (#1863) 2026-01-16 09:58:57 +01:00
Marcelo Trylesinski 32a4587da9 chore: drop as _annotations (#1858) 2026-01-15 10:07:06 +00:00
Max Isbey b26e5b907f Add missing TasksCallCapability to enable proper MCP task support (#1854) 
Co-authored-by: Claude <noreply@anthropic.com>
 2026-01-15 10:55:38 +01:00
Yann Jouanin 0da9a074d0 Support for Resource and ResourceTemplate metadata (#1840) 
Co-authored-by: Jacem Elwaar <jacem@mcpappsbuilders.com>
 2026-01-12 14:45:31 +00:00
Marcelo Trylesinski 3ffe142e9a Support Python 3.14 (#1834) 2026-01-07 16:28:23 +00:00
Yann Jouanin 3863f203e9 Server initialize response update to last spec (add title, description) (#1634) 2026-01-06 21:34:08 +00:00
Jay Hemnani f397783c39 fix: add explicit type annotation for call_tool decorator (#1826) 
Co-authored-by: Jay Hemnani <jayhemnani9910@gmail.com>
Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>
 2026-01-06 21:11:36 +01:00
Max Isbey 37de50144f fix: add StatelessModeNotSupported exception and improve tests (#1828) 2026-01-06 11:26:26 +00:00
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) 
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) 
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) 
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) 
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)
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2025-12-04 14:44:08 +00:00
Edison 9ed0b93ceb fix: handle ClosedResourceError in StreamableHTTP message router (#1384) 
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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* 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) 
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) 
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