Starstock

Starstock was a sports-card and collectibles trading marketplace surfaced as an a16z portfolio lead. As of the 2026-07-21 enrichment pass, starstock.com 301-redirects to collectiblexchange.com — a Brandon Steiner-founded Shopify-based marketplace for autographed memorabilia, game-used equipment, and trading cards — which publishes no API, developer portal, developer documentation, SDKs, or public GitHub organization. No API surface exists to enrich.

Starstock is profiled on the APIs.io network. Tagged areas include Company.

🌐 Visit website 📡 Source on GitHub

4.1/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1

0 APIs

Company

Kin Score

Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1

Composite quality — 4.1/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 4.1 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/starstock: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Source (apis.yml)

aid: starstock
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/starstock.png
name: Starstock
description: Starstock was a sports-card and collectibles trading marketplace surfaced as an a16z portfolio lead. As of the
  2026-07-21 enrichment pass, starstock.com 301-redirects to collectiblexchange.com — a Brandon Steiner-founded Shopify-based
  marketplace for autographed memorabilia, game-used equipment, and trading cards — which publishes no API, developer portal,
  developer documentation, SDKs, or public GitHub organization. No API surface exists to enrich.
url: https://raw.githubusercontent.com/api-evangelist/starstock/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
x-enrichment:
  date: '2026-07-21'
  status: nochange
  artifacts_added: 0
  pass: local-v1
tags:
- Company
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io