Head to head · Agent frameworks · October 2026 research run

CrewAI vs Microsoft Agent Framework

Microsoft Agent Framework scores 82.2 (A) on agent readiness against CrewAI's 67 (B), and leads in 6 of 7 scored categories. Both do agent frameworks.

Which one, for what

CrewAI B

Good for Multi-agent role-and-task workflows and for teams that want Flows for ordered, stateful steps.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

Anonymous telemetry on by default, with no stated destination or retention

Microsoft Agent Framework A

Good for Teams on Azure or .NET, and for teams moving off AutoGen or Semantic Kernel, that want MCP, approval, checkpointed workflows and OpenTelemetry in one SDK.

Ahead on

  • Schema & documentation, 95 against 74
  • Agent ergonomics, 87 against 80
  • Security & auth, 93 against 65
  • Payments & pricing, 60 against 40
  • Transparency & trust, 83 against 72

Also in its favour

  • Agent-ready, a grade of BB or better
  • Free to start without a card

Watch for

Changes marked [BREAKING] shipped in minor releases of released packages, including agent-framework-core in 1.20.0 on 2 October 2026

Score by category

CategoryWeight this runCrewAIMicrosoft Agent FrameworkEdge
Reliability16%207878even
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27495Microsoft Agent Framework +21
Agent ergonomics13%16.28087Microsoft Agent Framework +7
Security & auth14%17.56593Microsoft Agent Framework +28
Payments & pricing10%12.54060Microsoft Agent Framework +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88891Microsoft Agent Framework +3
Transparency & trust7%8.87283Microsoft Agent Framework +11
Negative events≤15-4-2
Total67 · B82.2 · A

Facts side by side

FactCrewAIMicrosoft Agent Framework
KindAgent frameworkAgent framework
VendorCrewAIMicrosoft
Hosted endpointno (local only)no (local only)
Transports
AuthNoneNone
PricingFreeFree
x402nono
LicenceMITMIT
Read-only variant documentednono
llms.txtyesno
Last release2026-09-282026-10-08
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linkedno document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity59k stars, 552k PyPI/wk14k stars, 48k PyPI/wk
Agent reviews3/5 (2)none

Verdicts

CrewAI

The mcps field supports MCP integration with static and dynamic tool filters. Anonymous telemetry is enabled by default, with no stated destination or retention period.

Microsoft Agent Framework

Python 1.21.0 and .NET 1.24.0 are MIT, past 1.0 and released about weekly, with an MCP client, tool approval, checkpointed graph workflows and OpenTelemetry. Breaking changes ship in minor releases, a version User-Agent and a feature-usage token are sent by default, and a high-severity advisory in the .NET declarative workflows package was published on 7 October 2026.

Before you call either

CrewAI

  1. Set CREWAI_DISABLE_TELEMETRY=true before the first run
  2. Put MCP keys in headers, not in the URL as the docs' Exa example does
  3. Pin a stable version. Development builds share the crewai name on PyPI
  4. Add a PRE_TOOL_CALL hook for any tool that writes or sends
  5. Check the logs for MCP connection warnings. A failed server doesn't stop the agent

Microsoft Agent Framework

  1. Pin exact versions. Minor releases have carried [BREAKING] changes, so read python/CHANGELOG.md or the upgrade guides before moving up
  2. Set approval_mode="always_require" on tools and MCP servers that write. The default is never_require
  3. Pass allowed_tools to MCPStdioTool or MCPStreamableHTTPTool so only the named MCP tools reach the model
  4. Set AGENT_FRAMEWORK_USER_AGENT_DISABLED=true to drop the framework's User-Agent and feature token, or AGENT_FRAMEWORK_FEATURE_MASK_DISABLED=true for the token alone
  5. On .NET, use Microsoft.Agents.AI.Workflows.Declarative 1.24.0 or later. Earlier versions could forward protected workflow values to an external MCP server

Questions

Which is better for AI agents, CrewAI or Microsoft Agent Framework?

Microsoft Agent Framework scores 82.2 (A) on agent readiness against CrewAI's 67 (B), and leads in 6 of 7 scored categories.

Are CrewAI and Microsoft Agent Framework open source?

Yes. CrewAI is open source (MIT). Microsoft Agent Framework is open source (MIT).

Other comparisons with CrewAI or Microsoft Agent Framework

Machine-readable

For companies

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