Subspace

Subspace was a real-time network-as-a-service platform delivering a dedicated, performance-optimized global network for latency-sensitive applications — WebRTC, VoIP/SIP calling, video conferencing, multiplayer gaming, and fintech. Its Product API provisions three services: PacketAccelerator (no-code global internet acceleration), SIPTeleport (SIP/VoIP call-quality improvement), and WebRTC-CDN (instant global WebRTC acceleration with ICE server configuration). The REST API uses resource-oriented URLs and JSON responses, versioned at v1, authenticated with OAuth2 client-credentials issuing 24-hour JWT bearer tokens via Auth0, and ships six first-party OpenAPI client SDKs. The company was a Bloomberg Beta portfolio company; its marketing site remains live while the API, identity, and status hosts have wound down operationally.

Subspace publishes 3 API contracts indexed on the APIs.io network: AcceleratorService API, SipTeleportService API, and WebRtcCdnService API. Tagged areas include Company, Networking, Real-Time, WebRTC, and VoIP.

The Subspace catalog on APIs.io includes 1 Spectral governance ruleset.

Subspace’s developer surface includes documentation, API reference, pricing, signup flow, authentication, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

0.0/100 minimal ▬ flat Agent 0/100 human only Front door AI 1/6 silent Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

1 published contract 2 Agent Skills

Company Networking Real-Time WebRTC VoIP SIP CDN Gaming Latency Infrastructure Defunct

Kin Score

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

Composite quality — 0.0/100 · minimal

Contract Quality 0.0 / 19

Developer Ergonomics 0.0 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 0.0 / 9

Discoverability 0.0 / 8

Regulatory Posture 4.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 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/subspace/apis.yml: open an issue on github.com/api-evangelist/subspace 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
Network Edge (CDN, networking, peering, edge compute)	standard	17.2 (thin)	-	-

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 2

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.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 3

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

Subspace AcceleratorService API

The AcceleratorService API from Subspace — 2 operation(s) for acceleratorservice.

Subspace SipTeleportService API

The SipTeleportService API from Subspace — 2 operation(s) for sipteleportservice.

Subspace WebRtcCdnService API

The WebRtcCdnService API from Subspace — 1 operation(s) for webrtccdnservice.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Subspace Product AcceleratorService API

OPEN COLLECTION

Subspace Product AcceleratorService SipTeleportService API

OPEN COLLECTION

Subspace Product AcceleratorService WebRtcCdnService API

OPEN COLLECTION

Agent Skills 2

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

Provision a PacketAccelerator

AGENT SKILL

Provision a SIPTeleport

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Subspace API Rules

70 rules · 67 errors 2 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Subspace Openapi Overlay

2 actions · update · subspace-openapi-original.yml

DERIVED

Security Posture 3

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

Subspace Authentication

oauth2 · 1 scheme

SECURITY

Subspace Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Subspace Vulnerability Disclosure

Bugcrowd

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Subspace Scopes

9 scopes · clientCredentials

9 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Subspace Agentic Access

11 operations · 7 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

X-MCPServerCandidate

AgentSkill

AgenticAccess

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

DataModel

ErrorCatalog

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 5

Authentication, authorization, and security posture

Security

Authentication

OAuthScopes

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: subspace
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/subspace.png
name: Subspace
description: 'Subspace was a real-time network-as-a-service platform delivering a dedicated, performance-optimized global
  network for latency-sensitive applications — WebRTC, VoIP/SIP calling, video conferencing, multiplayer gaming, and fintech.
  Its Product API provisions three services: PacketAccelerator (no-code global internet acceleration), SIPTeleport (SIP/VoIP
  call-quality improvement), and WebRTC-CDN (instant global WebRTC acceleration with ICE server configuration). The REST API
  uses resource-oriented URLs and JSON responses, versioned at v1, authenticated with OAuth2 client-credentials issuing 24-hour
  JWT bearer tokens via Auth0, and ships six first-party OpenAPI client SDKs. The company was a Bloomberg Beta portfolio company;
  its marketing site remains live while the API, identity, and status hosts have wound down operationally.'
url: https://raw.githubusercontent.com/api-evangelist/subspace/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bloomberg-beta
x-tier: enriched
x-tier-reason: real-api-surface
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Networking
- Real-Time
- WebRTC
- VoIP
- SIP
- CDN
- Gaming
- Latency
- Infrastructure
- Defunct
apis:
- aid: subspace:subspace-acceleratorservice-api
  name: Subspace AcceleratorService API
  description: The AcceleratorService API from Subspace — 2 operation(s) for acceleratorservice.
  humanURL: https://www.subspace.com/
  baseURL: https://api.subspace.com/v1
  tags:
  - AcceleratorService
  properties:
  - type: OpenAPI
    url: openapi/subspace-acceleratorservice-api-openapi.yml
- aid: subspace:subspace-sipteleportservice-api
  name: Subspace SipTeleportService API
  description: The SipTeleportService API from Subspace — 2 operation(s) for sipteleportservice.
  humanURL: https://www.subspace.com/
  baseURL: https://api.subspace.com/v1
  tags:
  - SipTeleportService
  properties:
  - type: OpenAPI
    url: openapi/subspace-sipteleportservice-api-openapi.yml
- aid: subspace:subspace-webrtccdnservice-api
  name: Subspace WebRtcCdnService API
  description: The WebRtcCdnService API from Subspace — 1 operation(s) for webrtccdnservice.
  humanURL: https://www.subspace.com/
  baseURL: https://api.subspace.com/v1
  tags:
  - WebRtcCdnService
  properties:
  - type: OpenAPI
    url: openapi/subspace-webrtccdnservice-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/subspace-openapi-overlay.yaml
- type: Website
  url: https://www.subspace.com/
- type: DeveloperPortal
  url: https://console.subspace.com/
- type: Documentation
  url: https://subspace.com/resources?category=documentation
- type: APIReference
  url: https://subspace.com/api
- type: Pricing
  url: https://subspace.com/pricing
- type: SignUp
  url: https://console.subspace.com/
- type: Security
  url: https://subspace.com/security
- type: GitHubOrganization
  url: https://github.com/subspace-com
- type: LLMsTxt
  url: llms/subspace-llms.txt
- type: Packages
  url: packages/subspace-packages.yml
- type: SDKs
  url: packages/subspace-packages.yml
- type: X-MCPServerCandidate
  url: mcp/subspace-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: Conventions
  url: conventions/subspace-conventions.yml
- type: DataModel
  url: data-model/subspace-data-model.yml
- type: ErrorCatalog
  url: errors/subspace-problem-types.yml
- type: Lifecycle
  url: lifecycle/subspace-lifecycle.yml
- type: Conformance
  url: conformance/subspace-conformance.yml
- type: Authentication
  url: authentication/subspace-authentication.yml
- type: OAuthScopes
  url: scopes/subspace-scopes.yml
- type: AgenticAccess
  url: agentic-access/subspace-agentic-access.yml
- type: DomainSecurity
  url: security/subspace-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/subspace-vulnerability-disclosure.yml
- type: WellKnown
  url: well-known/subspace-well-known.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 17
  pass: local-v1
x-status: defunct

Subspace API — frequently asked questions

Does Subspace have an API?

Yes. APIs.io lists 3 APIs from Subspace, including Subspace AcceleratorService API, Subspace SipTeleportService API and Subspace WebRtcCdnService API.

Is there an OpenAPI specification for the Subspace API?

Yes. APIs.io indexes 3 OpenAPI specifications for Subspace, each linked for download from this page.

How do I authenticate with the Subspace API?

Subspace documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Subspace Authentication.

Is the Subspace API ready for AI agents?

Subspace has a Kin Score of 0.0 out of 100 (minimal) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-06.

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