dayi35.com (大易有塑, Dayi Yousu) is a Chinese business-to-business e-commerce and trading platform for plastics and chemical raw materials, operated out of Dongguan, Guangdong. The platform runs an online mall covering general-purpose plastics (ABS, EVA, GPPS, HIPS, LLDPE), engineering plastics (PA6, PA66, PBT, PC, PET, PMMA, PPS, LCP), modified and recycled resins, and chemical additives such as titanium dioxide, carbon black, flame retardants and release agents. Alongside the mall it operates a buyer request-for-quote board (求购), a daily domestic and international price and market-data service, industry news, and supply-chain services spanning warehousing, logistics distribution, and e-commerce enablement for plastics and chemicals enterprises. Buyer and seller activity runs through an authenticated member console at /uc. The site is filed under Chinese ICP licence 粤ICP备15037802号.
大易有塑 (dayi35.com) is profiled on the APIs.io network. Tagged areas include Company, Plastics, Chemicals, B2B Marketplace, and E-Commerce.
Regulatory Posture applies to this provider. Its tags matched the
Securities & Market Data 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/.
Show this score on your site.
It updates itself when the score changes. Paste this where you link to your API docs:
<a href="https://apis.io/providers/dayi35-com/"><img src="https://apis.io/badge/dayi35-com/card.svg" alt="大易有塑 (dayi35.com) on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
Machine-Readable Auth+10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
Stable Error Semantics+8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
13 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
aid: dayi35-com
name: 大易有塑 (dayi35.com)
description: dayi35.com (大易有塑, Dayi Yousu) is a Chinese business-to-business e-commerce and trading platform for plastics
and chemical raw materials, operated out of Dongguan, Guangdong. The platform runs an online mall covering general-purpose
plastics (ABS, EVA, GPPS, HIPS, LLDPE), engineering plastics (PA6, PA66, PBT, PC, PET, PMMA, PPS, LCP), modified and recycled
resins, and chemical additives such as titanium dioxide, carbon black, flame retardants and release agents. Alongside the
mall it operates a buyer request-for-quote board (求购), a daily domestic and international price and market-data service,
industry news, and supply-chain services spanning warehousing, logistics distribution, and e-commerce enablement for plastics
and chemicals enterprises. Buyer and seller activity runs through an authenticated member console at /uc. The site is filed
under Chinese ICP licence 粤ICP备15037802号.
url: https://raw.githubusercontent.com/api-evangelist/dayi35-com/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-source-url: https://forgeglobal.com/dayi35-com_stock/
x-tier: stub
x-tier-reason: harvest
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: false
label: Delivery model not determined — needs a product licence on record
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
probe_state: blocked
source:
- security
generated: '2026-11-06'
method: derived
specificationVersion: '0.23'
created: '2026-08-11'
modified: '2026-08-11'
tags:
- Company
- Plastics
- Chemicals
- B2B Marketplace
- E-Commerce
- Supply Chain
- Logistics
- Commodities
- Market Data
- China
apis: []
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
common:
- type: Website
url: https://www.dayi35.com/
- type: About
url: https://www.dayi35.com/about/index.html
- type: DomainSecurity
url: security/dayi35-com-domain-security.yml
x-enrichment:
date: '2026-08-11'
status: minimal
artifacts_added: 2
pass: local-v1
x-coverage:
state: blocked
reason: geo-blocked
detail: The dayi35.com origin (42.157.193.96, and 42.157.193.97 for api.dayi35.com) accepts no TCP connection on port 80
or 443 from a US vantage point — every probe returned a connection timeout rather than an HTTP status — so no live page,
robots.txt, /.well-known/ path or spec location could be read; an October 2025 Wayback capture of the homepage shows a
Chinese-language plastics trading portal with no developer or 开放平台 section, but that is a ten-month-old snapshot of one
page and is not evidence about the current surface.
evidence:
- url: https://www.dayi35.com/
status: 0
- url: https://www.dayi35.com/robots.txt
status: 0
- url: https://api.dayi35.com/openapi.json
status: 0
- url: https://www.dayi35.com/.well-known/agent-card.json
status: 0
- url: http://web.archive.org/web/20251012232446/https://www.dayi35.com/
status: 200
checked: '2026-08-11'
Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.