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rmcp

v1.3.0 Stable

Rust SDK for Model Context Protocol

Apache-2.0 Edition 2024

Quick Verdict

  • โœ“Actively maintained (updated 1d ago)
  • โœ“Stable API (1.x for 1+ years)
  • โœ“Massive adoption (7.1K crates depend on it)
  • !Heavy dependency tree (41 direct deps)
  • โœ“Permissive license (Apache-2.0)

Security

Checking security advisories...
Downloads
6.3M
Dependents
7.1K
Releases
42
Size
302KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

2.2M downloads in the last 30 days (73.4K/day), up 67% from the previous period.

๐Ÿ”—
Widely adopted

7.1K crates depend on rmcp. Strong ecosystem adoption means battle-tested code and long-term stability.

โœ…
Stable API

Reached 1.0 over a year ago. The API surface is settled, making it safe for production use.

๐Ÿ“ฆ
Heavy dependency tree

41 direct dependencies. Consider the impact on compile times and supply chain complexity.

๐ŸŒŸ
Used by top crates

Notable dependents include rig-core, mise, proto_cli, smg-mcp, rmcp-actix-web. When high-quality crates choose rmcp, it's a strong quality signal.

Health Breakdown

Maintenance 19/25

Recency, release consistency, active ratio

Quality 14/25

Yanked ratio, deps, size, maturity, features

Community 14/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
47K/day avg+148%
020K40K60K80K100K120K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.8.5
42%
v0.7.0
20%
v0.15.0
17%
v0.12.0
11%
v0.1.5
10%

Release Timeline

42 releases1 yankedsince 2025
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F
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2025
31
2026
11
Less
More|
Yanked

Feature Flags

default =["base64", "macros", "server"]

authlocaltowerclientmacros*server*reqwestschemars__reqwestelicitationtransport-ioclient-side-sseserver-side-httptransport-workerreqwest-native-tlstransport-async-rwreqwest-tls-no-providertransport-child-processauth-client-credentials-jwttransport-streamable-http-clienttransport-streamable-http-servertransport-streamable-http-client-reqwesttransport-streamable-http-server-sessiontransport-streamable-http-client-unix-socket

README

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Maintainers

Dependencies
41
direct dependencies
Dependents
7.1K
crates depend on rmcp