ThredUp

ThredUp (NASDAQ: TDUP) is one of the world's largest online resale and consignment platforms for secondhand women's and kids' clothing, shoes, and accessories. Founded in 2009 and headquartered in Oakland, CA, it lets consumers buy and sell pre-owned fashion via mailed Clean Out Kits, and powers branded recommerce for 60+ retailers through its Resale-as-a-Service (RaaS) platform. ThredUp does not publish a public developer API or OpenAPI; RaaS integrations are arranged through its partner sales team, so this API Evangelist profile captures the company's public web, engineering, and policy surface rather than a documented API program.

ThredUp is profiled on the APIs.io network. Tagged areas include Company, Ecommerce, Resale, Secondhand, and Fashion.

ThredUp’s developer surface includes engineering blog and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

13.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessApproval

0 APIs

CompanyEcommerceResaleSecondhandFashionConsignmentSustainabilityRetail

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 13.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 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/thredup: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

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

Partners

Partners

Source (apis.yml)

aid: thredup
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/thredup.png
name: ThredUp
description: 'ThredUp (NASDAQ: TDUP) is one of the world''s largest online resale and consignment platforms for secondhand
  women''s and kids'' clothing, shoes, and accessories. Founded in 2009 and headquartered in Oakland, CA, it lets consumers
  buy and sell pre-owned fashion via mailed Clean Out Kits, and powers branded recommerce for 60+ retailers through its Resale-as-a-Service
  (RaaS) platform. ThredUp does not publish a public developer API or OpenAPI; RaaS integrations are arranged through its
  partner sales team, so this API Evangelist profile captures the company''s public web, engineering, and policy surface rather
  than a documented API program.'
url: https://raw.githubusercontent.com/api-evangelist/thredup/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- redpoint-ventures
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Ecommerce
- Resale
- Secondhand
- Fashion
- Consignment
- Sustainability
- Retail
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: http://www.thredup.com/
- type: HelpCenter
  url: https://www.thredup.com/help
- type: TermsOfService
  url: https://www.thredup.com/help/terms-of-service
- type: PrivacyPolicy
  url: https://www.thredup.com/help/privacy-policy
- type: Blog
  url: https://labs.thredup.com/
- type: GitHubOrganization
  url: https://github.com/thredup
- type: Partners
  url: https://www.raas.thredup.com/
- type: LLMsTxt
  url: llms/thredup-llms.txt
- type: DomainSecurity
  url: security/thredup-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 2
  pass: local-v1