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.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Inmarsat the way a machine reads it — 8 machine-readable artifacts across 7 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Inmarsat scores 13.5/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-08 · rubric v0.20.0
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title="Inmarsat on API Evangelist — API profile and Kin Score">
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How we profile Inmarsat
Each block below is one kind of artifact we hold for Inmarsat. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 7
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
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 within the panel for all 7 ·
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Inmarsat — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 3
Status, limits, changes, and where to get help
Company 7
The organization behind the API
Scroll within the panel for all 7 ·
Other 11
Properties that don't map to a standard resource type
Scroll within the panel for all 11 ·
← All providers · Data indexed from github.com/api-evangelist/inmarsat · machine-readable index on apis.io
This is an independent, third-party profile of Inmarsat, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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