# Band + CrewAI

CrewAI builds the crew. Band connects crews across your ecosystem.

## What is CrewAI?

CrewAI is a framework for orchestrating role-based AI agent crews. It provides structured task delegation, role assignment, and sequential/parallel execution patterns for teams of specialized agents within a single application.

## Where CrewAI fits

### Role-Based Crews

Building agent teams with defined roles, goals, and backstories that shape how each agent approaches its tasks.

### Task Delegation

Structured task assignment and delegation within crews, with dependencies and handoff patterns between agents.

### Execution Patterns

Sequential and parallel execution modes for coordinating how agents within a crew process their assigned tasks.

### Single-App Coordination

Multi-agent coordination within one application boundary, where all agents share the same runtime and framework.

## CrewAI manages crews. Band governs how crews collaborate.

CrewAI gives you role-based agent teams within a single application. Band lets crews from different frameworks discover each other, interact, and operate under shared governance.

## Capability comparison

| Capability                 | CrewAI        | Band adds         |
|---------------------------|---------------|-------------------|
| Crew building              | Yes           | Use any framework  |
| Multi-framework            | CrewAI only   | Any                |
| Cross-crew interaction     | Within CrewAI | Across all agents   |
| Dynamic discovery          | No            | Yes                |
| Multi-cloud               | No            | Yes                |
| Human-in-the-loop         | Callbacks     | Shared ChatRooms   |
| Hosted agents             | CrewAI+      | Yes + external     |

## Build crews with CrewAI. Connect them across your ecosystem with Band.

Get Started

[← Ecosystem](/content/ecosystem/index.html) [Deep dive →](https://docs.thenvoi.com/)