# nasa/fprime

F´ - A flight software and embedded systems framework

Repository: https://github.com/nasa/fprime
Canonical: https://ross.abutalabs.com/products/fprime
Homepage: https://fprime.jpl.nasa.gov
Language: C++
License: Apache-2.0
License Family: permissive
Topics: flight-software, embedded-systems, nasa, cpp, spaceflight, real-time, raspberry-pi, object-oriented-programming, components, framework, flight, embedded, fprime
Last push: 2026-08-26T23:09:19+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 3359, "days_push": 7, "days_rel": 13, "gap_med": 44.5, "n_releases_24m": 15}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 11695, forks 1823 (observed 2026-08-28T04:10:49.528014+00:00)

## What it is
F´ (F Prime) is a component-driven, flight-proven C++ framework from NASA JPL for rapidly developing and deploying spaceflight and other embedded software applications. It provides a component architecture with well-defined interfaces, code generation from models, a library of flight-ready components, and unit/integration testing tools.

## Use cases
- build flight software for a CubeSat or SmallSat
- develop embedded applications with a component-based architecture
- generate C++ component code from a system model
- run flight software on Raspberry Pi or ARM Linux hardware
- test embedded software at unit and integration levels
- command and monitor an embedded application from a ground data system

## When to choose
- you are developing software for small-scale spacecraft such as CubeSats, SmallSats, or instruments
- you need a flight-proven, open-source embedded framework with component decomposition and code generation
- you want ready-made flight-worthy components plus testing and ground data system tooling
- you need cross-compilation support for embedded Linux or microcontroller targets

## When to avoid
- you are building a general-purpose desktop, web, or mobile application
- your project is a simple embedded task where a lightweight RTOS or bare-metal approach suffices
- your team cannot adopt C++ and the FPP modeling workflow
- you need a framework with a large commercial vendor ecosystem rather than a community-driven one

## Facets
- artifact type: framework
- maturity: stable
- function: embedded, middleware, concurrency, testing, developer-tools
- domain: embedded-systems, robotics, developer-tools, cross-platform
- platform: windows, cpp, python, embedded, cross-platform
- tags: flight-software, spaceflight, cubesat, nasa, jpl, component-architecture, real-time, code-generation, ground-data-system, fpp, linux, macos

## Member repositories
- nasa/fprime (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:49.528014+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:15:23.619365+00:00, confidence not recorded.
  - readme: https://github.com/nasa/fprime (fetched 2026-08-28T04:10:49.528014+00:00, sha fde8c2347cf7)
  - homepage: https://fprime.jpl.nasa.gov (fetched 2026-08-29T08:14:04.447361+00:00, sha f261b5e3d2d4)
  - site_page: https://fprime.jpl.nasa.gov/latest/docs/getting-started (fetched 2026-08-29T08:14:04.451183+00:00, sha d879d8bc7a2f)
  - site_page: https://fprime.jpl.nasa.gov/latest/docs (fetched 2026-08-29T08:14:04.453821+00:00, sha 732b2dd9407a)
  - site_page: https://fprime.jpl.nasa.gov/latest/docs/getting-started/installing-fprime (fetched 2026-08-29T08:14:04.456273+00:00, sha d215f5353126)
  - site_page: https://fprime.jpl.nasa.gov/latest/docs/tutorials (fetched 2026-08-29T08:14:04.462912+00:00, sha ee86e902ac24)
  - site_page: https://fprime.jpl.nasa.gov/latest/docs/user-manual (fetched 2026-08-29T08:14:04.465957+00:00, sha 4f4f7585710f)
  - site_page: https://fprime.jpl.nasa.gov/latest/tutorials-hello-world/docs/hello-world (fetched 2026-08-29T08:14:04.472390+00:00, sha b4384ab57348)
  - site_page: https://fprime.jpl.nasa.gov/latest/tutorials-led-blinker/docs/led-blinker (fetched 2026-08-29T08:14:04.476816+00:00, sha 53eba486894a)
  - site_page: https://fprime.jpl.nasa.gov/news/category/releases (fetched 2026-08-29T08:14:04.469516+00:00, sha f41acccfbfda)
- Data as of 2026-08-30T08:39:29.467469+00:00.