Skip to content

MCAP

  • Software
  • Middleware
  • Library

MCAP is a logging library and file format widely used in robotics, built to handle varied workloads, resource limits, and durability needs.

Made by Foxglove.

Source on GitHub: github.com/foxglove/mcap (opens in a new tab). Facts read at commit 4b0a12b (opens in a new tab).

Licenses

Code
MIT (opens in a new tab)

Read by Robotheca from LICENSE (opens in a new tab) (MIT) at commit 4b0a12b (opens in a new tab), on 16 Oct 2026.

Commercial use
Yes

What it does

  • Provides libraries for C++, Go, Python, JavaScript/TypeScript, Swift, and Rust.
  • Serves as a serialization-agnostic log container file format.
  • Includes a command line tool to inspect, merge, and split MCAP files.
  • Has a published file format specification and a Kaitai Struct definition.
  • Accepts contributions; build, test, and lint commands are described in AGENTS.md.

Written by Robotheca from the project's README (opens in a new tab) at commit 4b0a12b.

Getting started

Difficulty
Intermediate

Maintenance

Status
Active: a commit in the last 90 days
Newest commit
16 Oct 2026 on main
Latest release
CLI v0.4.0 (16 Oct 2026)

Checked on GitHub on 16 Oct 2026.

Robots on Robotheca that use it

No robot on Robotheca is linked to it yet. Links come from a robot's robot.yaml, from its dependency files read as text, or from Robotheca's editors.

Robotheca lists software as a reference: nothing is hosted or run here, and every fact links to where it was read.