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umf

v0.2.6 Experimental

Universal Message Format (UMF) - Provider-agnostic message representation for LLM interactions with ChatML formatting, internal hub model, and MCP support

MIT OR Apache-2.0 Edition 2021 MSRV 1.70
Data structuresEncoding #openai#mcp#llm#anthropic#message-format

Quick Verdict

  • โœ“Actively maintained (updated 33d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 273 crates
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
910
Dependents
273
Releases
12
Size
36KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

176 downloads in the last 30 days (6/day), up 39% from the previous period.

๐Ÿ”—
Moderate adoption

273 crates depend on umf. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ“
Compact crate

At 35KB, umf is lightweight. Small crate size correlates with focused, well-scoped functionality.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 16/25

Yanked ratio, deps, size, maturity, features

Community 13/20

Reverse deps, ownership, ecosystem

Popularity 4/15

Downloads, momentum, growth trend

Documentation 15/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
0/day avg
02/263/164/34/215/95/26

Top Dependents

Most downloaded crates that depend on umf

Version Adoption

v0.1.3
32%
v0.2.4
25%
v0.2.6
25%
v0.2.3
10%
v0.2.0
7%

Release Timeline

10 releasessince 2025
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2025
3
2026
7
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Feature Flags

default =["internal"]

mcpfullchatmleventsinternal*streaming

README

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Maintainers

Dependencies
6
direct dependencies
Dependents
273
crates depend on umf

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