Microsoft Agent Framework and OpenFang are both agent frameworks tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.
An open-source Agent Operating System built from scratch in Rust, designed to run autonomous agents on schedules.
Attribute
Microsoft Agent Framework
OpenFang
Pricing
Free
Free
Free trial
No
No
Open source
No
No
Has API
Yes
Yes
Self-hosted option
Yes
Yes
Platforms
Python and .NET with consistent APIs. Available for both .NET and Python
macOS, Linux, and Windows
Languages
Python, C# (.NET)
Built with Rust
Released
2025-10
2026-02
Pros
Unifies the enterprise-ready foundations of Semantic Kernel with the innovative orchestration of AutoGen
Full framework support for both Python and C#/.NET implementations with consistent APIs and built-in OpenTelemetry integration for distributed tracing, monitoring, and debugging
Open standards & interoperability — MCP, A2A, and OpenAPI ensure agents are portable and vendor-neutral
Supports integration with any API via OpenAPI, collaboration across runtimes with Agent2Agent (A2A), and dynamic tool connections using MCP
Enterprise readiness — built-in observability, approvals, security, and long-running durability
Compiles to a single ~32MB binary with no external dependencies
Seven autonomous Hands and 16 security layers included
40 messaging channel adapters provide the broadest platform coverage
15-crate modular Rust workspace enables extensibility and maintenance
Comprehensive security including WASM dual-metered sandbox, Ed25519 signing, Merkle audit trail, and taint tracking
Cons
Public preview released October 1, 2025, with AutoGen and Semantic Kernel entering maintenance mode
Requires understanding of agentic AI concepts and orchestration patterns
Dependent on external model providers for LLM capabilities
Feature complete but pre-1.0 status means rough edges and breaking changes between minor versions
Not all Hands are equally mature; Browser and Researcher are most battle-tested
Target for rock-solid v1.0 is mid-2026, indicating ongoing volatility expected
Bottom line
Microsoft Agent Framework and OpenFang are closely matched on pricing model, openness, and API availability — pick by feature set and platform support in the table above.
Comparison data is sourced and verified by the AIDiveForge data pipeline. AIDiveForge is editorially independent.
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