# AgentOS vs Claude Agent SDK

> AgentOS scores 75.3 (BB) on agent readiness against Claude Agent SDK's 72.1 (BB), and leads in 3 of 7 scored categories. Claude Agent SDK leads on agent ergonomics and transparency & trust. Both do agent frameworks. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk
- Markdown: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk.md (~2,200 tokens)
- Slim: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

AgentOS scores 75.3 (BB) on agent readiness against Claude Agent SDK's 72.1 (BB), and leads in 3 of 7 scored categories. Claude Agent SDK leads on agent ergonomics and transparency & trust. Both do agent frameworks.

- AgentOS: grade BB, 75.3/100, rank #46 of 629. Markdown https://www.anchorterminal.com/tools/agentos.md · JSON https://www.anchorterminal.com/api/v1/tools/agentos.json
- Claude Agent SDK: grade BB, 72.1/100, rank #91 of 629. Markdown https://www.anchorterminal.com/tools/claude-agent-sdk.md · JSON https://www.anchorterminal.com/api/v1/tools/claude-agent-sdk.json

## Which one, for what

### AgentOS (BB)

Good for: TypeScript teams that want long-term memory, personas, voice and channel adapters and multi-agent teams in one package, and that will pin versions.

Ahead on:
- Reliability, 77 against 70
- Payments & pricing, 60 against 40

Also in its favour:
- Free to start without a card
- Open source

Watch for: Version 0.12.12, with 27 releases on 7 and 8 October 2026 and breaking minors 0.11.0 and 0.12.0 on the same day

### Claude Agent SDK (BB)

Good for: Agents that work on files, code and shells and want Claude Code's tool set and permission model without building them.

Ahead on:
- Agent ergonomics, 94 against 74
- Transparency & trust, 83 against 64

Watch for: Claude models only, so a person has to set up a Claude API key or cloud account first


## Score by category

| Category | Weight | AgentOS | Claude Agent SDK | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 77 | 70 | AgentOS +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 92 | 89 | AgentOS +3 |
| Agent ergonomics | 13% (16.2 this run) | 74 | 94 | Claude Agent SDK +20 |
| Security & auth | 14% (17.5 this run) | 81 | 83 | Claude Agent SDK +2 |
| Payments & pricing | 10% (12.5 this run) | 60 | 40 | AgentOS +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 87 | 87 | even |
| Transparency & trust | 7% (8.8 this run) | 64 | 83 | Claude Agent SDK +19 |
| Negative events | ≤15 | -2 | -6 | |
| **Total** | | **75.3 · BB** | **72.1 · BB** | |

## Facts side by side

| Fact | AgentOS | Claude Agent SDK |
| --- | --- | --- |
| Kind | Agent framework | Agent framework |
| Vendor | Framers Lab, Inc. | Anthropic |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | API key | API key |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | MIT (Python wrapper), proprietary (TypeScript package and the bundled Claude Code binary) |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-09-30 |
| Terms last updated | 2025-11-06 | no date given |
| Privacy policy last updated | 2025-11-06 | no date given |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 677 stars, 5.3k npm/wk | 8.2k stars, 10.1M npm/wk, 6.1M PyPI/wk |

## Verdicts

**AgentOS.** A TypeScript agent framework with typed tools, six multi-agent strategies, checkpointed graphs, approval gates and no telemetry of its own. It is at 0.12.12 after 98 releases in 90 days, two of them breaking on 7 October 2026. No MCP client was found in the package, and code tools an agent writes run in an in-process node:vm context.

**Claude Agent SDK.** Claude Code's file, shell, search and web tools, with six permission modes, a canUseTool callback and PreToolUse hooks. Claude models only, so a person has to set up a Claude API key or cloud account first.

## Before you call either

### AgentOS

1. Pin an exact version of @framers/agentos. Feature commits ship as patch releases while it is 0.x, and breaking changes ship as minors
2. Leave emergentConfig.allowSandboxTools off unless forged code runs through an executor that isolates. The default executor shares the host process
3. Pass your own ICheckpointStore to compile() for runs that must survive a restart. The default store is in memory
4. Set hitl.approvals.beforeTool for tools that write, and choose a handler. No approval gate is on by default
5. Use Node 22 or newer, and set a provider key such as OPENAI_API_KEY or ANTHROPIC_API_KEY. The provider is detected from the environment

### Claude Agent SDK

1. Set DISABLE_TELEMETRY=1 before the first run on the Claude API
2. List MCP tools in allowed_tools, or the agent sees them and can't call them
3. Pass permission_mode explicitly. An unset mode can start in auto mode since TypeScript 0.3.286
4. Pin the version. Releases land almost daily and some get yanked
5. Check the init message for MCP servers in failed or needs-auth. They don't raise

## Questions

### Which is better for AI agents, AgentOS or Claude Agent SDK?

AgentOS scores 75.3 (BB) on agent readiness against Claude Agent SDK's 72.1 (BB), and leads in 3 of 7 scored categories. Claude Agent SDK leads on agent ergonomics and transparency & trust.

### Are AgentOS and Claude Agent SDK open source?

AgentOS is open source (Apache-2.0). No open-source release is listed for Claude Agent SDK.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agentos-vs-claude-agent-sdk.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "agentos", "b": "claude-agent-sdk"}`. From a terminal: `anchor compare agentos claude-agent-sdk`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agentos.json and https://www.anchorterminal.com/api/v1/tools/claude-agent-sdk.json

## Other comparisons with AgentOS or Claude Agent SDK

- [AgentOS vs Agno](https://www.anchorterminal.com/compare/agentos-vs-agno.md)
- [AgentOS vs CrewAI](https://www.anchorterminal.com/compare/agentos-vs-crewai.md)
- [AgentOS vs Docker Agent](https://www.anchorterminal.com/compare/agentos-vs-docker-agent.md)
- [AgentOS vs Agent Development Kit (ADK)](https://www.anchorterminal.com/compare/agentos-vs-google-adk.md)
- [AgentOS vs LangGraph](https://www.anchorterminal.com/compare/agentos-vs-langgraph.md)
- [AgentOS vs Microsoft Agent Framework](https://www.anchorterminal.com/compare/agentos-vs-microsoft-agent-framework.md)
- [AgentOS vs OpenAI Agents SDK](https://www.anchorterminal.com/compare/agentos-vs-openai-agents-sdk.md)
- [AgentOS vs Pydantic AI](https://www.anchorterminal.com/compare/agentos-vs-pydantic-ai.md)
- [Agno vs Claude Agent SDK](https://www.anchorterminal.com/compare/agno-vs-claude-agent-sdk.md)
- [Claude Agent SDK vs CrewAI](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-crewai.md)
- [Claude Agent SDK vs Docker Agent](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-docker-agent.md)
- [Claude Agent SDK vs Agent Development Kit (ADK)](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-google-adk.md)
- [Claude Agent SDK vs LangGraph](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-langgraph.md)
- [Claude Agent SDK vs Microsoft Agent Framework](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-microsoft-agent-framework.md)
- [Claude Agent SDK vs OpenAI Agents SDK](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-openai-agents-sdk.md)
- [Claude Agent SDK vs Pydantic AI](https://www.anchorterminal.com/compare/claude-agent-sdk-vs-pydantic-ai.md)

## Disclosure

- Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and the panel doesn't review it, because every reviewer runs on Claude too.