modelcontextprotocol/csharp-sdk

The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

4.6k stars · 827 forks · C#

Healthy

Healthy: actively maintained by 23 people, no known risks.

Why

No rule fired.

What would change this

Maintenance

Complete

Active

Human commits, 30 days
3
Human commits, 90 days
60
Human commits, 365 days
376
Bot share of commits, 365 days
20%
Last commit
Oct 14, 2026 (12 hours ago)
Last human commit
Oct 14, 2026 (12 hours ago)
Authors, 90 days
23
Last release
Aug 13, 2026 (2 months ago)
Median PR merge time
18 hours

Responsiveness: of 26 recent issues, 50% got a maintainer reply. Median first response: 4 days.

Sources: Commits, Releases, Merged pull requests, Issues

People

Complete
Owner
Organization
Commits sampled
376 since Oct 15, 2025
Authors for half of commits
2
Authors for 80% of commits
8
Contributors
89

Top committers

The top committer changed during this period.

Sources: Commits, Contributors

Stars

Complete

Organic, confidence high

Stars per week, 2025-03-09 to 2026-10-11. 0 weeks overlap a burst.Peak 448 a week2025-03-092026-10-11
Bars show stars gained each week. Orange bars overlap a burst.

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

Sources: How star history is analyzed

Risk

Complete

Flags

License

Now
Apache-2.0 (OSI-approved)
A year ago
MIT (OSI-approved)

The license changed in the last year.

Packages

No published packages found.

Sources: GitHub: modelcontextprotocol/csharp-sdk

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Earlier verdicts

Computed 6 hours ago · method 2026.10.2