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 is listed with 1 API on the APIs.io network. Tagged areas include Company, Space, Satellite, Ground Station, and Aerospace.

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

🌐 Visit website 📡 Profile data on GitHub

26.4/100 thin ▬ flat Agent 17/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive library Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 2 Agent Skills

Company Space Satellite Ground Station Aerospace Telemetry gRPCGSaaSOrbital

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 26.4/100 · thin

Contract Quality 5.1 / 21

Developer Ergonomics 8.4 / 17

Access Clarity 0.0 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.5 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 17/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 24.0 — up to +19.0 composite points
Contract Governance scores 4.5 — up to +11.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/infostellar/apis.yml: open an issue on github.com/api-evangelist/infostellar to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Space and Satellite (operators, earth observation, ground segment)	distribution	9.6 (thin)	-	1
Buf Schema Registry (public Protocol Buffers modules, gRPC / ConnectRPC schema publishers)	distribution	9.6 (thin)	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

gRPC

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

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 ...

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Manage satellite TLE orbital data

AGENT SKILL

Schedule and stream a satellite pass

AGENT SKILL

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 2

The organization behind the API

Blog

Blog

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
  - security
  generated: '2026-11-06'
  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: '2026-10-06'
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:
- url: https://www.infostellar.net/news/
  type: Blog
- 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

Infostellar API — frequently asked questions

Does Infostellar have an API?

Yes. APIs.io lists 1 API from Infostellar, including StellarStation API.

How do I authenticate with the Infostellar API?

Infostellar uses bearer-token authentication (jwt-bearer · 1 scheme). The details are profiled on APIs.io as Infostellar Authentication.

Is the Infostellar API ready for AI agents?

Infostellar has a Kin Score of 26.4 out of 100 (thin) and an Agent Readiness score of 17.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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