generated: '2026-08-29'
method: searched
source: https://github.com/swift-nav/libsbp/tree/master/spec/yaml/swiftnav/sbp
name: Swift Binary Protocol (SBP) — machine-readable protocol specification
description: >-
  SBP is Swift Navigation's native binary wire protocol for its GNSS receivers (Piksi, Duro) and
  for the Starling positioning engine. It is the company's real API contract: 29 YAML package
  definitions, 442 KB, that declare every message type, its field layout, units, bit-flags and
  enumerated values. Every first-party client library (C, Python, Rust, Java, JavaScript, Haskell),
  the JSON Schema set in json-schema/, and the Kaitai Struct descriptions are all GENERATED from
  these files — so this is the source of truth, not a rendering of it.
license: LGPL-3.0 (see https://github.com/swift-nav/libsbp/blob/master/LICENSE)
version: v6.5.1
released: '2026-07-08'
format: YAML message-definition DSL (libsbp generator schema)
docs: https://swift-nav.github.io/libsbp/
packages:
  - file: swift-navigation-sbp-acquisition.yaml
    package: swiftnav.sbp.acquisition
  - file: swift-navigation-sbp-base.yaml
    package: swiftnav.sbp.base
  - file: swift-navigation-sbp-bootload.yaml
    package: swiftnav.sbp.bootload
  - file: swift-navigation-sbp-ext_events.yaml
    package: swiftnav.sbp.ext_events
  - file: swift-navigation-sbp-file_io.yaml
    package: swiftnav.sbp.file_io
  - file: swift-navigation-sbp-flash.yaml
    package: swiftnav.sbp.flash
  - file: swift-navigation-sbp-gnss.yaml
    package: swiftnav.sbp.gnss
  - file: swift-navigation-sbp-imu.yaml
    package: swiftnav.sbp.imu
  - file: swift-navigation-sbp-integrity.yaml
    package: swiftnav.sbp.integrity
  - file: swift-navigation-sbp-linux.yaml
    package: swiftnav.sbp.linux
  - file: swift-navigation-sbp-logging.yaml
    package: swiftnav.sbp.logging
  - file: swift-navigation-sbp-mag.yaml
    package: swiftnav.sbp.mag
  - file: swift-navigation-sbp-navigation.yaml
    package: swiftnav.sbp.navigation
    note: Largest package (108 KB) — position, velocity, baseline and time solutions.
  - file: swift-navigation-sbp-ndb.yaml
    package: swiftnav.sbp.ndb
  - file: swift-navigation-sbp-observation.yaml
    package: swiftnav.sbp.observation
  - file: swift-navigation-sbp-orientation.yaml
    package: swiftnav.sbp.orientation
  - file: swift-navigation-sbp-piksi.yaml
    package: swiftnav.sbp.piksi
  - file: swift-navigation-sbp-profiling.yaml
    package: swiftnav.sbp.profiling
  - file: swift-navigation-sbp-sbas.yaml
    package: swiftnav.sbp.sbas
  - file: swift-navigation-sbp-settings.yaml
    package: swiftnav.sbp.settings
  - file: swift-navigation-sbp-signing.yaml
    package: swiftnav.sbp.signing
  - file: swift-navigation-sbp-solution_meta.yaml
    package: swiftnav.sbp.solution_meta
  - file: swift-navigation-sbp-ssr.yaml
    package: swiftnav.sbp.ssr
    note: State Space Representation corrections — the payload Skylark's SSR mountpoints carry.
  - file: swift-navigation-sbp-system.yaml
    package: swiftnav.sbp.system
  - file: swift-navigation-sbp-telemetry.yaml
    package: swiftnav.sbp.telemetry
  - file: swift-navigation-sbp-tracking.yaml
    package: swiftnav.sbp.tracking
  - file: swift-navigation-sbp-types.yaml
    package: swiftnav.sbp.types
  - file: swift-navigation-sbp-user.yaml
    package: swiftnav.sbp.user
  - file: swift-navigation-sbp-vehicle.yaml
    package: swiftnav.sbp.vehicle
derived_artifacts:
  - path: ../json-schema/
    count: 225
    note: >-
      JSON Schema draft-06 definitions, one per SBP message and per shared struct, published by
      Swift Navigation for web clients consuming SBP-JSON. Downloaded verbatim.
  - path: ../grpc/
    note: Unrelated to SBP — the Sora gRPC contract, from buf.build/swift-nav/sora-api.