How do I verify an API certificate or monogram?

Search the official API Composite List (https://mycerts.api.org/search/compositesearch) by company name, license number, or specification. Confirm Active status and that facility and licensed scope match the quotation.

What is the difference between API Monogram and API Spec Q1?

An API Monogram license is facility- and product-specification-specific authorization to apply the monogram mark. API Spec Q1 is a quality-management system registration. A company may hold one, both, or neither for a given site.

What does “Certification records / 认证记录” mean on Dongying Zhizao?

Public source-record labels used to help buyers filter supplier cards. They are not live confirmation of API license status and do not replace checking the API Composite List.

What if the Composite List shows no match for a supplier?

Do not treat a marketing PDF as proof. Request the exact legal name, license number, and facility address, search again, and do not proceed on monogram claims until an Active matching record appears.

Where can I read about API fraud alerts?

See API’s Monogram and APIQR fraud alerts on api.org for patterns of fake certificates.

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How to verify an API certificate before you RFQ

Distinguish API Monogram vs Spec Q1 vs Dongying Zhizao “Certification records”, then check the only authoritative list — the API Composite List — before you send drawings or money.

Open API Composite List →

Monogram vs Q1 vs site “Certification records”

Label	What it is	What it is not
API Monogram license	Facility-scoped license to apply the monogram under a named API product spec (e.g. 5CT, 6A, 11AX)	A blanket company-wide “API certified for everything” badge
API Spec Q1 registration	Quality-management system registration for manufacturing organizations	A product monogram by itself
Dongying Zhizao “Certification records”	Public source-record chips on directory cards for navigation	Current issuer verification or endorsement

Source labels on this site do not replace issuer verification; scope is facility-specific; no match does not mean no certificate.

Step-by-step: API Composite List

Go to https://mycerts.api.org/search/compositesearch.
Search by company legal name, license/certificate number, or specification.
Use advanced filters (status, country, scope keywords) if needed.
Confirm Active status, facility address, and specification / scope match the quote and shipping plant.
If status is suspended, cancelled, or applicant-only, do not treat as authorized monogram use.

Fraud awareness

Review API Fraud Alerts on api.org. Do not rely on PDFs alone.

Using Dongying Zhizao safely

Chips appear on companies and hubs such as API 5CT and API 11AX. Always open the profile, then re-verify on the Composite List. Playbook: How to source oilfield equipment from Dongying. Cluster: Oilfield equipment manufacturers in Dongying.

RFQ hygiene after verification

Ask for license number, facility address, spec edition, and scope in writing.
Align PO marking requirements with what the Composite List shows.
Keep the Composite List URL and search timestamp with your RFQ file.

FAQ

How do I verify an API certificate or monogram?: Search the official Composite List; confirm Active status plus facility and scope.
What is the difference between API Monogram and API Spec Q1?: Monogram is facility- and product-spec-specific. Q1 is a QMS registration. A site may hold one, both, or neither.
What does “Certification records / 认证记录” mean on Dongying Zhizao?: Public source-record labels for filtering — not live issuer confirmation.
What if the Composite List shows no match?: Do not treat marketing PDFs as proof; request exact legal name, license, and facility; re-search.
Where can I read about API fraud alerts?: On api.org’s Monogram / APIQR fraud alerts page.