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{
lib,
stdenv,
buildPythonPackage,
fetchFromGitHub,
writableTmpDirAsHomeHook,
# build-system
hatchling,
uv-dynamic-versioning,
# dependencies
anthropic,
authlib,
cyclopts,
exceptiongroup,
httpx,
jsonschema-path,
mcp,
openai,
openapi-pydantic,
platformdirs,
py-key-value-aio,
pydantic,
pydocket,
pyperclip,
python-dotenv,
rich,
uvicorn,
websockets,
# tests
dirty-equals,
email-validator,
fastapi,
inline-snapshot,
lupa,
psutil,
pytest-asyncio,
pytest-httpx,
pytestCheckHook,
pytest-timeout,
}:
buildPythonPackage (finalAttrs: {
pname = "fastmcp";
version = "2.14.3";
pyproject = true;
src = fetchFromGitHub {
owner = "jlowin";
repo = "fastmcp";
tag = "v${finalAttrs.version}";
hash = "sha256-vlwS4gpKMkmHh5Yr09ZMNFzpiEKjzJoJJNN3KxSBn3g=";
};
build-system = [
hatchling
uv-dynamic-versioning
];
dependencies = [
authlib
cyclopts
exceptiongroup
httpx
jsonschema-path
mcp
openapi-pydantic
platformdirs
py-key-value-aio
pydantic
pydocket
pyperclip
python-dotenv
rich
uvicorn
websockets
]
++ py-key-value-aio.optional-dependencies.disk
++ py-key-value-aio.optional-dependencies.keyring
++ py-key-value-aio.optional-dependencies.memory
++ pydantic.optional-dependencies.email;
optional-dependencies = {
anthropic = [ anthropic ];
openai = [ openai ];
};
pythonImportsCheck = [ "fastmcp" ];
pytestFlags = [
"--timeout=30"
];
nativeCheckInputs = [
dirty-equals
email-validator
fastapi
inline-snapshot
lupa
psutil
pytest-asyncio
pytest-httpx
pytest-timeout
pytestCheckHook
writableTmpDirAsHomeHook
]
++ lib.concatAttrValues finalAttrs.passthru.optional-dependencies
++ inline-snapshot.optional-dependencies.dirty-equals;
disabledTests = [
# redis.exceptions.ResponseError: unknown command `evalsha`, with args beginning with:
"test_get_prompt_as_task_returns_prompt_task"
"test_prompt_task_server_generated_id"
"test_logging_middleware_with_payloads"
"test_structured_logging_middleware_produces_json"
# AssertionError: assert 'INFO' == 'DEBUG'
"test_temporary_settings"
# mcp.shared.exceptions.McpError: Connection closed
"test_log_file_captures_stderr_output_with_path"
"test_log_file_captures_stderr_output_with_textio"
"test_log_file_none_uses_default_behavior"
# RuntimeError: Client failed to connect: Connection closed
"test_keep_alive_maintains_session_across_multiple_calls"
"test_keep_alive_false_starts_new_session_across_multiple_calls"
"test_keep_alive_false_exit_scope_kills_server"
"test_keep_alive_starts_new_session_if_manually_closed"
"test_keep_alive_true_exit_scope_kills_client"
"test_keep_alive_maintains_session_if_reentered"
"test_close_session_and_try_to_use_client_raises_error"
"test_parallel_calls"
"test_run_mcp_config"
"test_settings_from_environment_issue_1749"
"test_uv_transport"
"test_uv_transport_module"
"test_github_api_schema_performance"
# Hang forever
"test_nested_streamable_http_server_resolves_correctly"
# RuntimeError: Client failed to connect: Timed out while waiting for response
"test_timeout"
"test_timeout_tool_call_overrides_client_timeout_even_if_lower"
# assert 0 == 2
"test_multi_client"
"test_canonical_multi_client_with_transforms"
# AssertionError: assert {'annotations...object'}, ...} == {'annotations...sers']}}, ...}
"test_list_tools"
# fastmcp.exceptions.ToolError: Unknown tool
"test_multi_client_with_logging"
"test_multi_client_with_elicitation"
]
++ lib.optionals stdenv.hostPlatform.isDarwin [
# RuntimeError: Server failed to start after 10 attempts
"test_unauthorized_access"
];
disabledTestPaths = lib.optionals stdenv.hostPlatform.isDarwin [
# RuntimeError: Server failed to start after 10 attempts
"tests/client/auth/test_oauth_client.py"
"tests/client/test_sse.py"
"tests/client/test_streamable_http.py"
"tests/server/auth/test_jwt_provider.py"
"tests/server/http/test_http_dependencies.py"
];
__darwinAllowLocalNetworking = true;
meta = {
description = "Fast, Pythonic way to build MCP servers and clients";
changelog = "https://github.com/jlowin/fastmcp/releases/tag/${finalAttrs.src.tag}";
homepage = "https://github.com/jlowin/fastmcp";
license = lib.licenses.asl20;
maintainers = with lib.maintainers; [ GaetanLepage ];
};
})
|
