Claude Agent SDK
https://github.com/anthropics/claude-agent-sdk-python
Anthropic's SDK for building agents on the Claude Code agent loop (tools, sub-agents, MCP); published to PyPI as claude-agent-sdk.
Active · Verified 2026-10-26 · fresh as of 2026-10-26 · 18 cited facts, 1 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Tier
- T3
- Created
- 2025-06-11 repo fix
- Latest release
- last commit 2026-10-24 repo fix
- Pricing
- searched not found fix
- Funding
- searched not found fix
- Freshness
- 2026-10-26 fix
- Layer
- agent-infra repo fix
- Licensing
- open-source repo fix
- SDK languages
- python, typescript vendor fix
- Protocols
- mcp-client vendor fix
- Developer activity
- OpenRank 8.64 (12-mo avg 13.59) · 70 participants — 2026-09 third-party fix
When to use
Optimised for: searched not found
Anti-fit: searched not found
Pros & cons
Pros
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Cons
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Claims & capabilities
Python SDK for Claude Agent. See the Claude Agent SDK documentation for more information.
Technical surface
- API surface
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- Backend storage
- searched not found
- Deployment
- searched not found
- Embedding model
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- Multi-tenancy
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- MCP
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- A2A
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- OpenTelemetry
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Alternatives to Claude Agent SDK → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other agent frameworks (no first-party memory layer) in the catalog, ranked by inbound references.
- Model Context Protocol (MCP spec) T1
Anthropic-introduced open protocol (Nov 2024) for connecting LLMs to data sources and tools. Donated by Anthropic to the Linux Foundation's Agentic AI Foundation (announced 2025-12-09); now governed as Model Context Protocol, a Series of LF Projects, LLC. Supported across Claude, ChatGPT, VS Code, Cursor and many other clients.
- LangChain (framework) T1
Dominant Python/JS framework for LLM apps — tool calling, agents, retrievers, runnables. Memory is one component (LangMem cross-listed); the framework itself is the product.
- Vercel AI SDK T1
Vercel's TypeScript LLM SDK — streaming, tool calls, structured outputs, agents. Dominant framework for Next.js LLM apps.
- LlamaIndex (framework) T1
Data framework for LLM apps — connectors, indices, query engines, agents, workflows. Memory is one of many subsystems (LlamaIndex Memory cross-listed).
- OpenAI Agents SDK T1
OpenAI's official Python framework for agents — handoffs, guardrails, tracing built in. Successor to OpenAI Swarm (experimental); officially supported.
- LangGraph (orchestration) T1
LangChain's stateful graph runtime for agents — explicit state, persistence, time-travel debugging, human-in-the-loop. Memory is one persistence target (LangGraph Persistence cross-listed).
Sources (17 cited facts, 1 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Framework repo
- What it does & what's distinct Anthropic's SDK for building agents on the Claude Code agent loop (tools, sub-agents, MC… repo
- Claims / benefits Python SDK for Claude Agent. See the Claude Agent SDK documentation for more information. repo
- Created 2025-06-11 repo
- Latest release last commit 2026-10-24 repo
- License MIT repo
- GitHub https://github.com/anthropics/claude-agent-sdk-python (8347★) repo
- Mindshare 8347 GitHub stars repo
- Project & sources https://github.com/anthropics/claude-agent-sdk-python repo
- architecture-deployment-locus local repo
- licensing-bucket open-source repo
- positioning-platform-vs-product platform repo
- taxonomy-three-layer-rollup agent-infra repo
- developer-activity-opendigger {"activity":138.83,"as_of":"2026-09","openrank_12mo":13.59,"openrank_current":8.64,"part… third-party
- sdk-languages python,typescript vendor
- protocol-support mcp-client vendor
- maturity alpha registry
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-26 Added to the catalog #259
Related systems
Referenced by (22)
- Arize Phoenix integrates with — Arize Phoenix docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- Braintrust integrates with — Braintrust docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- CoCounsel Legal (Thomson Reuters) builds on — Next-gen release (Aug 2026, built on Claude Agent SDK) is fully agentic and adds per-matter Workspaces that keep firm documents and precedents as context across matters and teams, plus Brief Builder…
- Comet ML integrates with — Comet's Opik docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- Datadog Agent Observability (LLM Observability) integrates with — Datadog LLM Observability auto-instrumentation page lists a Claude Agent SDK LLM integration. (verified 2026-10-29)
- Daytona integrates with — Daytona docs have a guide for running Claude Agent SDK with Daytona sandboxes. (verified 2026-10-29)
- Fireworks AI integrates with — Fireworks AI docs integration: Claude Agent SDK (Nexus harness, preview). (verified 2026-10-29)
- Hatchet integrates with — Hatchet cookbooks include a Claude Agent SDK cookbook. (verified 2026-10-29)
- Helicone integrates with — Helicone docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- HoneyHive integrates with — HoneyHive integrations docs have a Claude Agent SDK tracing/integration page. (verified 2026-10-29)
- Laminar integrates with — Laminar integrations docs have a Claude Agent SDK observability page. (verified 2026-10-29)
- Langfuse integrates with — Langfuse's integrations directory has a Claude Agent SDK integration page. (verified 2026-10-29)
- LangSmith integrates with — LangSmith docs have a tracing integration page for Claude Agent SDK. (verified 2026-10-29)
- Mastra integrates with — Mastra repo ships the @mastra/claude package built on @anthropic-ai/claude-agent-sdk. (verified 2026-10-29)
- MongoDB Atlas Vector Search integrates with — MongoDB's Atlas AI Integrations page lists Claude Agent SDK as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Neo4j integrates with — Neo4j's GenAI ecosystem docs have a Claude Agent SDK integration page. (verified 2026-10-29)
- OpenInference integrates with — The OpenInference repo README lists an OpenInference instrumentation package for Claude Agent SDK. (verified 2026-10-29)
- OpenRouter integrates with — OpenRouter docs have a community guide on using OpenRouter with the Anthropic (Claude) Agent SDK. (verified 2026-10-29)
- Portkey AI integrates with — Portkey docs have a Claude Agent SDK agent framework integration page. (verified 2026-10-29)
- Pydantic Logfire integrates with — Pydantic Logfire integrations docs have a Claude Agent SDK page. (verified 2026-10-29)
- Trigger.dev integrates with — Trigger.dev docs: Claude Agent SDK setup guide. (verified 2026-10-29)
- Weights & Biases integrates with — W&B Weave docs have a Claude Agent SDK integration page. (verified 2026-10-29)