# Best multi-agent frameworks for customer support

Support systems route a message to the right specialist, keep the conversation state, and hand over to a person when needed. This page lists tools whose records document routing or handoffs plus a human escalation path. The order follows the criteria below. Data as of 2026-09-30.

## Selection criteria

- Documents routing or handoff between specialist agents.
- Keeps conversation history per user or session.
- Has a documented human approval or escalation mechanism.
- Offers channel or voice integration, or a documented support example.
- License and hosting options are clear.

## Shortlist

1. [OpenAI Agents SDK (Python)](https://multiagentguide.top/tools/openai-agents-sdk.md): Handoffs let a triage agent pass the conversation to a specialist; guardrails, sessions (SQLite, Redis, SQLAlchemy) and approvals that work across handoffs are included. MIT, Python; A2A is recorded as no.
2. [Agent Squad](https://multiagentguide.top/tools/agent-squad.md): Apache-2.0 framework in Python, TypeScript and Swift that classifies each message and routes it to the best-matching specialist agent with per-agent history; its docs include an e-commerce support example that escalates to human staff. No built-in approval API is documented.
3. [LiveKit Agents](https://multiagentguide.top/tools/livekit-agents.md): Apache-2.0 framework for realtime voice agents with agent handoffs, SIP telephony and `WarmTransferTask` for handing a caller to a person; self-hosted or on LiveKit Cloud.
4. [Agno](https://multiagentguide.top/tools/agno.md): Teams in route mode send a request to one member; AgentOS provides Slack, Telegram, WhatsApp and Discord interfaces, stores sessions in your database and persists paused approval runs.
5. [Dify](https://multiagentguide.top/tools/dify.md): Visual platform whose official tutorial builds a customer service bot over a document knowledge base; the Human Input node pauses a flow for review by web form or email. Its license is a modified Apache 2.0 with restrictions (see the tool page).
6. [OpenAI Agents SDK (JavaScript/TypeScript)](https://multiagentguide.top/tools/openai-agents-js.md): The TypeScript counterpart of the OpenAI SDK: triage-to-specialist handoffs with `needsApproval` on tools, for Node.js support back ends.

## Shortlist facts

| Tool | Type | Languages | License | Pricing | Pattern | MCP | A2A | AG-UI | Stars |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [OpenAI Agents SDK (Python)](https://multiagentguide.top/tools/openai-agents-sdk.md) | Framework | Python | MIT | Open source, free | Handoff | Yes | No | Unknown | 29,784 |
| [Agent Squad](https://multiagentguide.top/tools/agent-squad.md) | Framework | Python, TypeScript, Swift | Apache-2.0 | Open source, free | Other | Yes | Unknown | Unknown | 7,778 |
| [LiveKit Agents](https://multiagentguide.top/tools/livekit-agents.md) | Framework | Python | Apache-2.0 | Open core | Handoff | Yes | Unknown | Unknown | 14,431 |
| [Agno](https://multiagentguide.top/tools/agno.md) | Framework | Python | Apache-2.0 | Open core | Supervisor | Yes | Yes | Yes | 42,396 |
| [Dify](https://multiagentguide.top/tools/dify.md) | Platform | Python, TypeScript, JavaScript | unknown | Open core | Graph | Yes | Unknown | Unknown | 157,574 |
| [OpenAI Agents SDK (JavaScript/TypeScript)](https://multiagentguide.top/tools/openai-agents-js.md) | Framework | TypeScript, JavaScript | MIT | Open source, free | Handoff | Yes | No | Unknown | 3,881 |

## FAQ

### Do I need a multi-agent system for support?

Only if one agent cannot hold all the instructions and tools. Routing frameworks such as Agent Squad or handoff SDKs keep each specialist narrow; a single agent with good retrieval is often enough for one product line.

### Which option handles phone calls?

LiveKit Agents is the voice entry on this list: it documents SIP telephony, turn detection and warm transfer to a human.

### How do these tools hand over to a human?

It varies: tool approvals (OpenAI Agents SDK, Agno), a Human Input node (Dify), warm transfer on a call (LiveKit), or an application-level pattern shown in examples (Agent Squad).

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Data as of 2026-09-30. Not affiliated with listed projects. HTML version: https://multiagentguide.top/best/customer-support