MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.
⚡ Executive Summary & Quick Facts
Authoritative Sourcemcap is mcap is an open-source project written in Rust: MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), foxglove/mcap has accumulated 1,126 GitHub stars and 244 forks. It is written in Rust, licensed under MIT, and ranks #7,090 globally. It is actively maintained with the latest commit recorded on Oct 27, 2026.”
| Repository | foxglove/mcap ↗ |
|---|---|
| Primary Category | cpp |
| Language & Stack | Rust |
| Software License | MIT |
| Community Traction | ★ 1.1K stars · ⑂ 244 forks · #7,090 globally |
| Maintenance | ● Active (Last commit: Oct 27, 2026) · 55 open issues |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 97/100 · Grade A+Yes, mcap is actively maintained. Continuous telemetry recorded the last code commit on Oct 27, 2026 (5 days ago). Supported by 1,126 stars and 244 community forks, this repository holds a calculated health index of 97/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+28
STARS · LAST 30 DAYS
1
PER DAY
#693
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +7 | +28 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +1 | +5 | +12 |
mcap gained 28 stars in the last 30 days, about 1 a day, and now has 1.1K. It is about 5 years old and has averaged roughly 225 stars a year. It ranks #693 among Rust repositories and #7,090 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#9377
BEST RANK
Oct 28, 2026
FIRST APPEARANCE
Active
STATUS TODAY
mcap has maintained a continuous presence across global trending indexes, peaking at #9377. Below is the 30-day activity profile:
💡 Overview
mcap is an open-source project written in Rust: MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.
Engineered for speed, consistency, and developer ease, it solves common hurdles in cpp, data, deserialization. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Rust for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ cargo install mcap⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
mcap coordinates its core functionality through a modular Rust pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed mcap into Rust backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open MIT license.
🚀 Getting Started
Install mcap using your package manager: `cargo install mcap`
Initialize your project workspace or configuration file for mcap.
Import mcap into your codebase or invoke it directly from your terminal.
Execute your test suite or run `mcap --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
foxglove/mcap is currently ranked #7,090 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #7,082 | eolix/photosuite | Rust | ★ 1.1K | Compare ↗ |
| #7,082 | To3akaRin/mac-computer-use | JavaScript | ★ 1.1K | Compare ↗ |
| #7,087 | Cytoid/Cytoid | C# | ★ 1.1K | Compare ↗ |
| #7,087 | ergebnis/composer-normalize | PHP | ★ 1.1K | Compare ↗ |
| #7,087 | ant-research/AntOmniEvo | Python | ★ 1.1K | Compare ↗ |
| #7,090 | foxglove/mcap This Project | Rust | ★ 1.1K | |
| #7,090 | gf3/dotfiles | Emacs Lisp | ★ 1.1K | Compare ↗ |
| #7,090 | palkan/isolator | Ruby | ★ 1.1K | Compare ↗ |
| #7,090 | localgpt-app/localgpt | Rust | ★ 1.1K | Compare ↗ |
| #7,094 | hivemq/hivemq-mqtt-client | Java | ★ 1.1K | Compare ↗ |
| #7,094 | berylliumsec/nebula | Python | ★ 1.1K | Compare ↗ |
Frequently Asked Questions
What does mcap do? +
MCAP is a modular, performant, and serialization-agnostic container file format, useful for pub/sub and robotics applications.
Is mcap actively maintained in 2026? +
Yes, mcap is actively maintained. The latest code push was recorded on Oct 27, 2026 (5 days ago). It holds a calculated Maintenance Health Score of 97/100 (A+ rating) with 1,126 stars and 55 open issues.
What language is mcap written in? +
The primary language is Rust. Topics include: cpp, data, deserialization, golang, python.
How many stars does mcap have? +
mcap has 1,126 stars and 244 forks on GitHub.
How does mcap rank among GitHub repositories? +
With 1,126 stars, foxglove/mcap is ranked #7,090 globally across all repositories tracked on GitHubRepo and #693 among Rust projects.
What license is mcap distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
