Inmarsat

Inmarsat is a British satellite communications operator founded in 1979, originally as the International Maritime Satellite Organization, providing voice, data, broadband, and IoT services over a global L-band, Ka-band, and multi-band fleet of geostationary satellites. In May 2023 Viasat completed its acquisition of Inmarsat, and the combined company now operates Inmarsat's GX (Global Xpress), BGAN, IsatData Pro (IDP), and Fleet Xpress services alongside Viasat's ViaSat-3 constellation as a unified multi-orbit network. Inmarsat serves four core markets — Maritime (NexusWave, Fleet Xpress, Fleet One, FleetBroadband, Inmarsat C/GMDSS), Aviation (SwiftBroadband, GX Aviation, Jet ConneX, SB-S safety services), Government (L-TAC, GX, BGAN M2M), and Enterprise/IoT (BGAN M2M, IsatData Pro, IsatM2M, NB-NTN). Inmarsat operates a developer program at developer.inmarsat.com with documented APIs for BGAN network management, GSPS voice, Global Xpress, IsatData Pro messaging, Fleet Edge assurance, and Fleet Edge hardware replacement; access to interactive Swagger documentation is gated behind developer registration and approval, though the IsatData Pro Messaging API has an open-source Apache-2.0 Node.js client published on GitHub. Inmarsat is also one of the participating operators in the GSMA NB-NTN (Non-Terrestrial Network) standards work for satellite-extended cellular IoT, with Viasat-led proof-of-concept code for NIDD (Non-IP Data Delivery) published under the inmarsat-enterprise GitHub organization.

Inmarsat publishes 7 APIs on the APIs.io network. Tagged areas include Satellite Communications, SATCOM, Maritime, Aviation, and Government.

Inmarsat’s developer surface includes signup flow, GitHub presence, status page, YouTube channel, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

13.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

7 APIs

Satellite CommunicationsSATCOMMaritime Aviation Government Enterprise IoTMachine-to-MachineM2M Broadband L-BandKa-BandGlobal XpressBGANIsatData ProFleet XpressNexusWaveGMDSSSafety ServicesNB-NTNNon-Terrestrial NetworkViasat

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 13.5/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 2.2 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.0 / 10

Discoverability 5.5 / 9

Regulatory Posture 1.7 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/inmarsat: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

Inmarsat IsatData Pro Messaging API

The IsatData Pro (IDP) Messaging API is a web service for sending and receiving short binary messages over Inmarsat's global L-band satellite network to and from IDP remote mode...

Inmarsat BGAN Network API

The BGAN Network API provides programmatic access to Inmarsat's L-band Broadband Global Area Network (BGAN) for terminal status, session management, location services, and netwo...

Inmarsat GSPS API

The GSPS (Global Satellite Phone Service) API supports Inmarsat's L-band geostationary satellite voice network, exposing call-handling, provisioning, and management endpoints fo...

Inmarsat Global Xpress API

Global Xpress (GX) is Inmarsat's Ka-band high-throughput satellite service delivering downlink speeds to 50 Mbps and uplink to 5 Mbps for maritime, aviation, government, and ent...

Inmarsat Fleet Edge Assurance API

The Fleet Edge Assurance API gives maritime fleet operators programmatic access to terminal health, link assurance, and service monitoring data for Fleet Xpress and NexusWave de...

Inmarsat Fleet Edge Hardware Replacement API

The Fleet Edge Hardware Replacement API supports lifecycle workflows for swapping and provisioning Fleet Edge maritime terminals and modules. The Swagger documentation is hosted...

Inmarsat NB-NTN NIDD API (Proof of Concept)

A Viasat / Inmarsat Enterprise proof-of-concept API for Non-IP Data Delivery (NIDD) over NB-NTN (Narrowband Non-Terrestrial Network) satellite-extended cellular IoT. The referen...

Scroll for all 7

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Inmarsat Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Signup

Signup

Build 2

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

GitHubEnterprise

GitHubEnterprise

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Status

Status

Contact

Contact

Company 7

The organization behind the API

Website

FleetXpress

GlobalXpress

Newsroom

Careers

LinkedIn

Twitter

Twitter

Scroll for all 7

Other 11

Properties that don't map to a standard resource type

ParentCompany

APIPlatform

Technologies

Maritime

Aviation

Government

Enterprise

NexusWave

IsatDataPro

GMDSS

Acquisition

Scroll for all 11

Source (apis.yml)

aid: inmarsat
name: Inmarsat
description: Inmarsat is a British satellite communications operator founded in 1979, originally as the International Maritime
  Satellite Organization, providing voice, data, broadband, and IoT services over a global L-band, Ka-band, and multi-band
  fleet of geostationary satellites. In May 2023 Viasat completed its acquisition of Inmarsat, and the combined company now
  operates Inmarsat's GX (Global Xpress), BGAN, IsatData Pro (IDP), and Fleet Xpress services alongside Viasat's ViaSat-3
  constellation as a unified multi-orbit network. Inmarsat serves four core markets — Maritime (NexusWave, Fleet Xpress, Fleet
  One, FleetBroadband, Inmarsat C/GMDSS), Aviation (SwiftBroadband, GX Aviation, Jet ConneX, SB-S safety services), Government
  (L-TAC, GX, BGAN M2M), and Enterprise/IoT (BGAN M2M, IsatData Pro, IsatM2M, NB-NTN). Inmarsat operates a developer program
  at developer.inmarsat.com with documented APIs for BGAN network management, GSPS voice, Global Xpress, IsatData Pro messaging,
  Fleet Edge assurance, and Fleet Edge hardware replacement; access to interactive Swagger documentation is gated behind developer
  registration and approval, though the IsatData Pro Messaging API has an open-source Apache-2.0 Node.js client published
  on GitHub. Inmarsat is also one of the participating operators in the GSMA NB-NTN (Non-Terrestrial Network) standards work
  for satellite-extended cellular IoT, with Viasat-led proof-of-concept code for NIDD (Non-IP Data Delivery) published under
  the inmarsat-enterprise GitHub organization.
type: Index
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/inmarsat.png
tags:
- Satellite Communications
- SATCOM
- Maritime
- Aviation
- Government
- Enterprise
- IoT
- Machine-to-Machine
- M2M
- Broadband
- L-Band
- Ka-Band
- Global Xpress
- BGAN
- IsatData Pro
- Fleet Xpress
- NexusWave
- GMDSS
- Safety Services
- NB-NTN
- Non-Terrestrial Network
- Viasat
tags_raw:
- Satellite Communications
- SATCOM
- Maritime
- Aviation
- Government
- Enterprise
- IoT
- Machine to Machine
- M2M
- Broadband
- L-Band
- Ka-Band
- Global Xpress
- BGAN
- IsatData Pro
- Fleet Xpress
- NexusWave
- GMDSS
- Safety Services
- NB-NTN
- Non-Terrestrial Network
- Viasat
url: https://raw.githubusercontent.com/api-evangelist/inmarsat/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.23'
apis:
- aid: inmarsat:inmarsat-isatdatapro-messaging-api
  name: Inmarsat IsatData Pro Messaging API
  description: The IsatData Pro (IDP) Messaging API is a web service for sending and receiving short binary messages over
    Inmarsat's global L-band satellite network to and from IDP remote modems. The API is organized around Mailboxes (authenticated
    access points identified by accessId and password), Mobiles (remote devices addressed by globally unique Mobile IDs),
    and Messages — Return (Mobile-Originated) and Forward (Mobile-Terminated). A reference Node.js client implementation (isatdatapro-api)
    and an Azure integration (isatdatapro-azure) are published under the Apache 2.0 license on GitHub.
  humanURL: https://developer.inmarsat.com/technology/idp/
  tags:
  - IoT
  - Messaging
  - Satellite
  - IsatData Pro
  - M2M
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/technology/idp/
  - type: SDKs
    url: https://github.com/Inmarsat/isatdatapro-api
  - type: SDKs
    url: https://www.npmjs.com/package/isatdatapro-api
  - type: SDKs
    url: https://github.com/Inmarsat/isatdatapro-microservices
  - type: Integrations
    url: https://github.com/Inmarsat/isatdatapro-azure
- aid: inmarsat:inmarsat-bgan-network-api
  name: Inmarsat BGAN Network API
  description: The BGAN Network API provides programmatic access to Inmarsat's L-band Broadband Global Area Network (BGAN)
    for terminal status, session management, location services, and network access device control on BGAN terminals. The interactive
    Swagger documentation is hosted at developer.inmarsat.com behind developer registration and approval.
  humanURL: https://developer.inmarsat.com/technology/bgan/network-api-documentation/
  tags:
  - BGAN
  - L-Band
  - Network Management
  - Location
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/technology/bgan/network-api-documentation/
  - type: Signup
    url: https://developer.inmarsat.com/sign-up/
- aid: inmarsat:inmarsat-gsps-api
  name: Inmarsat GSPS API
  description: The GSPS (Global Satellite Phone Service) API supports Inmarsat's L-band geostationary satellite voice network,
    exposing call-handling, provisioning, and management endpoints for the IsatPhone family of handheld satellite phones.
    Documentation is published on the Inmarsat developer portal and is access-controlled.
  humanURL: https://developer.inmarsat.com/technology/gsps/
  tags:
  - GSPS
  - Voice
  - Satellite Phone
  - L-Band
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/technology/gsps/
- aid: inmarsat:inmarsat-global-xpress-api
  name: Inmarsat Global Xpress API
  description: Global Xpress (GX) is Inmarsat's Ka-band high-throughput satellite service delivering downlink speeds to 50
    Mbps and uplink to 5 Mbps for maritime, aviation, government, and enterprise customers. The GX API exposes service management,
    terminal status, and operational data for GX subscribers. The Swagger documentation is hosted on Inmarsat's developer
    portal and requires registered, approved access.
  humanURL: https://developer.inmarsat.com/technology/global-xpress/
  tags:
  - Global Xpress
  - Ka-Band
  - Broadband
  - High Throughput Satellite
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/technology/global-xpress/
- aid: inmarsat:inmarsat-fleet-edge-assurance-api
  name: Inmarsat Fleet Edge Assurance API
  description: The Fleet Edge Assurance API gives maritime fleet operators programmatic access to terminal health, link assurance,
    and service monitoring data for Fleet Xpress and NexusWave deployments running on Fleet Edge edge-compute hardware aboard
    vessels. The interactive Swagger documentation is published on the Inmarsat developer portal behind login.
  humanURL: https://developer.inmarsat.com/fleet-edge-assurance-api-swagger-output/
  tags:
  - Fleet Edge
  - Maritime
  - Assurance
  - Monitoring
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/fleet-edge-assurance-api-swagger-output/
- aid: inmarsat:inmarsat-fleet-edge-hardware-replacement-api
  name: Inmarsat Fleet Edge Hardware Replacement API
  description: The Fleet Edge Hardware Replacement API supports lifecycle workflows for swapping and provisioning Fleet Edge
    maritime terminals and modules. The Swagger documentation is hosted on the Inmarsat developer portal and requires approved
    developer access.
  humanURL: https://developer.inmarsat.com/fleet-edge-hardware-replacement-api-swagger/
  tags:
  - Fleet Edge
  - Maritime
  - Hardware
  - Lifecycle
  properties:
  - type: Documentation
    url: https://developer.inmarsat.com/fleet-edge-hardware-replacement-api-swagger/
- aid: inmarsat:inmarsat-nb-ntn-nidd-api
  name: Inmarsat NB-NTN NIDD API (Proof of Concept)
  description: A Viasat / Inmarsat Enterprise proof-of-concept API for Non-IP Data Delivery (NIDD) over NB-NTN (Narrowband
    Non-Terrestrial Network) satellite-extended cellular IoT. The reference materials are published openly on GitHub under
    inmarsat-enterprise/ntn-poc-nidd-api and accompany Python NIMO/NIMCodec libraries used to encode and transport messages.
  humanURL: https://github.com/inmarsat-enterprise/ntn-poc-nidd-api
  tags:
  - NB-NTN
  - Non-Terrestrial Network
  - IoT
  - NIDD
  - Non-IP Data Delivery
  properties:
  - type: Repository
    url: https://github.com/inmarsat-enterprise/ntn-poc-nidd-api
  - type: SDKs
    url: https://github.com/inmarsat-enterprise/pynimcodec
  - type: SDKs
    url: https://github.com/inmarsat-enterprise/pynimomodem
  - type: SDKs
    url: https://github.com/inmarsat-enterprise/pynanomodem
  - type: SDKs
    url: https://github.com/inmarsat-enterprise/pynbntnmodem
  - type: SDKs
    url: https://github.com/inmarsat-enterprise/nimcodec-js
common:
- type: IssueTracker
  url: https://github.com/inmarsat-enterprise/ntn-poc-nidd-api/issues
- type: DomainSecurity
  url: security/inmarsat-domain-security.yml
- type: Website
  url: https://www.inmarsat.com
- type: ParentCompany
  url: https://www.viasat.com
- type: DeveloperPortal
  url: https://developer.inmarsat.com
- type: APIPlatform
  url: https://apis.inmarsat.com
- type: Technologies
  url: https://developer.inmarsat.com/technology/
- type: Signup
  url: https://developer.inmarsat.com/sign-up/
- type: Maritime
  url: https://www.inmarsat.com/en/solutions-services/maritime.html
- type: Aviation
  url: https://www.inmarsat.com/en/solutions-services/aviation.html
- type: Government
  url: https://www.inmarsat.com/en/solutions-services/government.html
- type: Enterprise
  url: https://www.inmarsat.com/en/solutions-services/enterprise.html
- type: NexusWave
  url: https://www.inmarsat.com/en/solutions-services/maritime/services/nexuswave.html
- type: FleetXpress
  url: https://www.inmarsat.com/en/solutions-services/maritime/services/fleet-xpress.html
- type: GlobalXpress
  url: https://www.inmarsat.com/en/solutions-services/aviation/services/global-xpress-aviation.html
- type: IsatDataPro
  url: https://www.inmarsat.com/en/solutions-services/enterprise/services/isatdata-pro.html
- type: GMDSS
  url: https://www.inmarsat.com/en/solutions-services/maritime/services/safety.html
- type: Acquisition
  url: https://www.viasat.com/about/newsroom/press-releases/viasat-completes-acquisition-of-inmarsat/
- type: GitHub
  url: https://github.com/Inmarsat
- type: GitHubEnterprise
  url: https://github.com/inmarsat-enterprise
- type: Newsroom
  url: https://www.inmarsat.com/en/news.html
- type: Status
  url: https://status.inmarsat.com
- type: Contact
  url: https://www.inmarsat.com/en/contact.html
- type: Careers
  url: https://careers.inmarsat.com
- type: LinkedIn
  url: https://www.linkedin.com/company/inmarsat
- type: Twitter
  url: https://twitter.com/inmarsatglobal
- type: YouTube
  url: https://www.youtube.com/user/inmarsatglobal
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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