anthropics/anthropic-sdk-python

Stars: 3.9k
Forks: 853
Open beginner issues: 0
Indexed issues: 50
Avg merge: 1d 11h
Merged PRs (30d): 10

Dominant language: Python
License: MIT
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 13, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

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49 open issues indexed

Bedrock: support low-latency configuration Open

bedrock

anthropics/anthropic-sdk-python#971 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Feature request: add OAuth-based authentication Open

sdk

anthropics/anthropic-sdk-python#988 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
tools.0.web_search_20250305: Country code SG is not supported Open

api

anthropics/anthropic-sdk-python#995 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
aws bedrock can not support skill? Open

anthropics/anthropic-sdk-python#1102 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Token counting is not supported in Bedrock yet Open

anthropics/anthropic-sdk-python#1103 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Python SDK: _transform_recursive blocking event loop on large message payloads Open

anthropics/anthropic-sdk-python#1195 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Use of `deepcopy_minimal` in `files.beta.upload` mutates dict in place Open

anthropics/anthropic-sdk-python#1202 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Slow imports Open

sdk

anthropics/anthropic-sdk-python#1211 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
BetaAsyncAbstractMemoryTool docstring contains sync-only example (copy-paste from sync class) Open

sdk

anthropics/anthropic-sdk-python#1290 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
pdfplumber broken in code_execution sandbox — charset_normalizer mypyc module missing Open

api

anthropics/anthropic-sdk-python#1340 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
beta.skills.list hard-capped at 100 items with broken pagination (has_more always false, no cursor) Open

anthropics/anthropic-sdk-python#1391 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 13, 2026
API "Streaming is required" error message is outdated Open

anthropics/anthropic-sdk-python#1430 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Container File Mounting Open

anthropics/anthropic-sdk-python#1439 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
`BetaCitationPageLocation` contains `file_id` that cannot be roundtripped as a request Open

anthropics/anthropic-sdk-python#1450 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Bedrock streaming SSE events errors are not handled gracefully Open

bedrock

anthropics/anthropic-sdk-python#1477 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Accept a callable for bearer-token auth (`auth_token: str | Callable[[], str]`) Open

anthropics/anthropic-sdk-python#1496 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
[Bug] append_messages() inside tool runner loop causes infinite loop (advanced usage docs example) Open

anthropics/anthropic-sdk-python#1536 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Official Rust SDK request — Where The Rust At? (follow-up to #747) Open

anthropics/anthropic-sdk-python#1559 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
[Bug] API returns 400 'Invalid signature in thinking block' when replaying conversation history — no recovery path Open

anthropics/anthropic-sdk-python#1598 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Batch API: tool_use input wrapped in $PARAMETER_NAME placeholder key (claude-opus-4-7) Open

anthropics/anthropic-sdk-python#1607 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Bedrock stream decoder drops SSE event types; type-less chunks construct as RawMessageStartEvent(message=None) Open

anthropics/anthropic-sdk-python#1647 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Streaming response consumption validates full event union per event on the loop, even for get_final_message() Open

anthropics/anthropic-sdk-python#1649 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Managed Agents event stream doesn't surface model refusal stop_reason / stop_details Open

anthropics/anthropic-sdk-python#1664 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
web_search_20260209 dynamic filtering: code execution fails with "AttributeError: 'str' object has no attribute 'get'" and returns empty results — need help understanding Open

anthropics/anthropic-sdk-python#1666 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
[Beta Sessions / Managed Agents] MCP tool-result image content blocks reach the model as base64 text instead of vision Open

anthropics/anthropic-sdk-python#1671 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
x-stainless-timeout header is NOT_GIVEN on default requests Open

anthropics/anthropic-sdk-python#1676 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
environments work poller: ack-before-yield makes any consumer failure permanently strand the work item — request deferred ack or a nack/fail API Open

anthropics/anthropic-sdk-python#1746 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
[BUG] MCP connector: parallel mcp_tool_use calls stall ~300s per turn; one call per batch runs twice Open

anthropics/anthropic-sdk-python#1747 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
SessionToolRunner can re-execute a tool call after a stream reconnect if its result post failed Open

anthropics/anthropic-sdk-python#1749 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
transform_schema raises AssertionError on valid list-form types, e.g. {"type": ["string", "null"]} Open

anthropics/anthropic-sdk-python#1764 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 13, 2026
Self-hosted environments: outcome grader's tool results rejected with 400, so grading never completes Open

anthropics/anthropic-sdk-python#1790 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Streaming accumulator crashes when message_start omits usage as shown in thinking docs Open

anthropics/anthropic-sdk-python#1806 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
transform_schema empties a patternProperties map: field can only ever be {} Open

anthropics/anthropic-sdk-python#1817 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
output_config.format cannot take the pydantic model that output_format deprecates, and the dict workaround silently skips transform_schema Open

anthropics/anthropic-sdk-python#1819 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
BetaCompactionBlockParam.encrypted_content accepted by SDK types but rejected by the live API with "Extra inputs are not permitted" Open

anthropics/anthropic-sdk-python#1828 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Windows: os.fchmod in credential write-back bricks the OAuth refresh token Open

anthropics/anthropic-sdk-python#1868 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Managed Agents self-hosted worker: download_session_skills skips roster agents' skills, so subagent threads run without them Open

anthropics/anthropic-sdk-python#1870 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
`setup_skills` re-downloads and `rmtree`s skills on every session, racing when workers share a workdir Open

anthropics/anthropic-sdk-python#1871 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Structured outputs (output_config.format/json_schema): mid-stream invalid_request_error triggered by quoted string content in the prompt, not the schema Open

anthropics/anthropic-sdk-python#1889 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Add an explicit authentication mode to AnthropicBedrockMantle Open

anthropics/anthropic-sdk-python#1893 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Asynchronous identity_token_provider to WorkloadIdentityCredentials Open

anthropics/anthropic-sdk-python#1901 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Messages.parse (and AsyncMessages.parse) don't take cache_control? Open

anthropics/anthropic-sdk-python#1907 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
beta_tool generates a type: array input_schema and an uncallable tool for positional-only parameters (and *args) Open

anthropics/anthropic-sdk-python#1911 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Three symlink tests in test_agent_toolset.py are missing the needs_symlinks marker Open

anthropics/anthropic-sdk-python#1915 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Mid-stream `error` events still raise `APIStatusError` with `status_code=200` (#1258 closed without a fix) Open

anthropics/anthropic-sdk-python#1918 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Transport errors while consuming a stream escape as raw httpx exceptions instead of `APITimeoutError` / `APIConnectionError` Open

anthropics/anthropic-sdk-python#1919 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Sonnet 5 strict tool use returns a string for an array-typed property Open

anthropics/anthropic-sdk-python#1925 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
Sonnet 5 strict tool calls double-escape Unicode and introduce control characters into copied text Open

anthropics/anthropic-sdk-python#1926 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
Batch result decoders leave responses open after parsing or transport errors Open

anthropics/anthropic-sdk-python#1928 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026

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