Tradeblock

Tradeblock (operated by Astrolab, Inc. d/b/a Tradeblock, founded 2019) is a mobile-first, peer-to-peer sneaker trading marketplace that lets collectors use their sneakers as currency. Members build a Closet and Wishlist, browse a feed of public and private trade offers, and swap sneakers with other collectors, balancing uneven trades with cash. Every trade routes through Tradeblock's authentication centers, where shoes are verified for authenticity before shipping to each party. The service also surfaces supply-and-demand signals for individual sneaker models. Tradeblock is a consumer app (iOS, Android, and web) backed by Andreessen Horowitz (a16z), Trinity Ventures, and DCVC; it does not publish a public developer API, SDKs, or a developer portal at this time.

Tradeblock is profiled on the APIs.io network. Tagged areas include Company, Sneakers, Marketplace, Trading, and Consumer.

Tradeblock’s developer surface includes signup flow, support, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
17.2/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanySneakersMarketplaceTradingConsumerE-CommerceMobile AppAuthenticationResale

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 17.2/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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/tradeblock: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Tradeblock Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp
SignUp

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 LinkedIn
LinkedIn

Other 3

Properties that don't map to a standard resource type

X
X
 AppStore
AppStore
 GooglePlay
GooglePlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: tradeblock
name: Tradeblock
description: Tradeblock (operated by Astrolab, Inc. d/b/a Tradeblock, founded 2019) is a mobile-first, peer-to-peer sneaker
  trading marketplace that lets collectors use their sneakers as currency. Members build a Closet and Wishlist, browse a feed
  of public and private trade offers, and swap sneakers with other collectors, balancing uneven trades with cash. Every trade
  routes through Tradeblock's authentication centers, where shoes are verified for authenticity before shipping to each party.
  The service also surfaces supply-and-demand signals for individual sneaker models. Tradeblock is a consumer app (iOS, Android,
  and web) backed by Andreessen Horowitz (a16z), Trinity Ventures, and DCVC; it does not publish a public developer API, SDKs,
  or a developer portal at this time.
url: https://raw.githubusercontent.com/api-evangelist/tradeblock/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- dcvc
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.tradeblock.us/favicon.ico
tags:
- Company
- Sneakers
- Marketplace
- Trading
- Consumer
- E-Commerce
- Mobile App
- Authentication
- Resale
apis: []
common:
- type: DomainSecurity
  url: security/tradeblock-domain-security.yml
- type: LLMsTxt
  url: llms/tradeblock-llms.txt
- type: Website
  url: https://www.tradeblock.us/
- type: SignUp
  url: https://app.tradeblock.us/register
- type: Support
  url: https://tradeblock.zendesk.com/hc/en-us
- type: HelpCenter
  url: https://tradeblock.zendesk.com/hc/en-us
- type: TermsOfService
  url: https://tradeblock.zendesk.com/hc/en-us/articles/14865208526871-Terms-of-Service
- type: PrivacyPolicy
  url: https://tradeblock.zendesk.com/hc/en-us/articles/14865368240919-Privacy-Policy
- type: Blog
  url: https://marketing.tradeblock.us/
- type: X
  url: https://x.com/tradeblock_us
- type: LinkedIn
  url: https://www.linkedin.com/company/tradeblock-us
- type: AppStore
  url: https://apps.apple.com/us/app/tradeblock-sneaker-trading/id1544090672
- type: GooglePlay
  url: https://play.google.com/store/apps/details?id=com.astrolab4native
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 3
  pass: local-v1