Infostellar

Infostellar is a Tokyo-based space infrastructure company that operates StellarStation, a cloud ground-station-as-a-service (GSaaS) platform. It aggregates partner and operator antennas into a shared global network so satellite operators can discover and reserve upcoming passes, schedule and cancel plans, manage two-line element (TLE) orbital data, and stream live telemetry and commands to and from their spacecraft. StellarStation exposes a public gRPC API (defined with Protocol Buffers) at api.stellarstation.com, with precompiled client stubs published for Java, Python, Go, and Node.js and authentication handled via JWT bearer service-account credentials issued from the StellarStation Console. The API separates a satellite-operator service (StellarStationService) from a ground-station-operator service (GroundStationService), plus supporting definitions for antennas, radios, orbit, monitoring, and transport.

Infostellar publishes 1 API on the APIs.io network. Tagged areas include Company, Space, Satellite, Ground Station, and Aerospace.

Infostellar’s developer surface includes documentation, API reference, changelog, authentication, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

26.6/100 thin ▬ flat Agent 19/100 agent aware library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Space Satellite Ground Station Aerospace Telemetry gRPCGSaaSOrbital

Kin Score

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

Composite quality — 26.6/100 · thin

Contract Quality 6.7 / 25

Developer Ergonomics 9.4 / 20

Access Clarity 0.0 / 20

Operational Transparency 2.4 / 13

Contract Governance 0.5 / 12

Discoverability 7.6 / 10

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

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.

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/infostellar: 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 1

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

StellarStation API

Public gRPC API for the StellarStation ground-station-as-a-service platform. Lets satellite operators list upcoming available passes, reserve and cancel plans, add and retrieve ...

Security Posture 2

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

Infostellar Authentication

jwt-bearer · 1 scheme

SECURITY

Infostellar Domain Security

TLSv1.3 · DNSSEC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conformance

Conventions

DataModel

ErrorCatalog

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Product

Product

Protobuf

Protobuf

Source (apis.yml)

aid: infostellar
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/infostellar.png
name: Infostellar
description: Infostellar is a Tokyo-based space infrastructure company that operates StellarStation, a cloud ground-station-as-a-service
  (GSaaS) platform. It aggregates partner and operator antennas into a shared global network so satellite operators can discover
  and reserve upcoming passes, schedule and cancel plans, manage two-line element (TLE) orbital data, and stream live telemetry
  and commands to and from their spacecraft. StellarStation exposes a public gRPC API (defined with Protocol Buffers) at api.stellarstation.com,
  with precompiled client stubs published for Java, Python, Go, and Node.js and authentication handled via JWT bearer service-account
  credentials issued from the StellarStation Console. The API separates a satellite-operator service (StellarStationService)
  from a ground-station-operator service (GroundStationService), plus supporting definitions for antennas, radios, orbit,
  monitoring, and transport.
url: https://raw.githubusercontent.com/api-evangelist/infostellar/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: profiled
x-tier-reason: enriched-from-public-api
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Space
- Satellite
- Ground Station
- Aerospace
- Telemetry
- gRPC
- GSaaS
- Orbital
apis:
- name: StellarStation API
  description: Public gRPC API for the StellarStation ground-station-as-a-service platform. Lets satellite operators list
    upcoming available passes, reserve and cancel plans, add and retrieve TLE orbital data, set plan metadata, and open a
    bidirectional stream of satellite telemetry and commands; a companion GroundStationService lets antenna operators manage
    unavailability windows, list and cancel plans, and open a ground-station stream.
  humanURL: https://github.com/infostellarinc/stellarstation-api
  baseURL: https://api.stellarstation.com
  tags:
  - Satellite
  - Ground Station
  - Telemetry
  - gRPC
  properties:
  - type: Protobuf
    url: grpc/infostellar-stellarstation.proto
  - type: Protobuf
    url: grpc/infostellar-groundstation.proto
  - type: Authentication
    url: authentication/infostellar-authentication.yml
  - type: Conventions
    url: conventions/infostellar-conventions.yml
  - type: DataModel
    url: data-model/infostellar-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/infostellar-domain-security.yml
- type: Website
  url: https://www.infostellar.net
- type: DeveloperPortal
  url: https://github.com/infostellarinc/stellarstation-api
- type: Documentation
  url: https://github.com/infostellarinc/stellarstation-api#readme
- type: APIReference
  url: https://javadoc.io/doc/com.stellarstation.api/stellarstation-api/
- type: GitHubOrganization
  url: https://github.com/infostellarinc
- type: Product
  url: https://www.stellarstation.com
- type: ChangeLog
  url: https://github.com/infostellarinc/stellarstation-api/releases
- type: ChangeLog
  url: changelog/infostellar-changelog.yml
- type: Lifecycle
  url: lifecycle/infostellar-lifecycle.yml
- type: Protobuf
  url: grpc/infostellar-stellarstation.proto
- type: Packages
  url: packages/infostellar-packages.yml
- type: SDKs
  url: packages/infostellar-packages.yml
- type: Authentication
  url: authentication/infostellar-authentication.yml
- type: Conformance
  url: conformance/infostellar-conformance.yml
- type: Conventions
  url: conventions/infostellar-conventions.yml
- type: DataModel
  url: data-model/infostellar-data-model.yml
- type: ErrorCatalog
  url: errors/infostellar-problem-types.yml
- type: X-MCPServerCandidate
  url: mcp/infostellar-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/infostellar-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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