--- layout: default ---

x-customer-user-agent

de facto — unregistered request

Declared by 30 providers across 234 published specification files in the APIs.io network.

What this header is for, and how to use it →

A count here is providers whose published contract declares this header — not providers who send it. Response headers set at the edge rarely appear in an OpenAPI at all, so a low number can measure documentation practice rather than deployment.

Providers declaring it (30)

aldermore algbra allica-bank bank-of-ireland-uk bank-of-scotland c-hoare-and-co cashplus chase-uk coutts coventry-building-society cynergy-bank first-direct gb-bank hampden-and-co investec kroo lloyds-banking-group monument-bank natwest open-banking-uk paragon-bank recognise-bank revolut santander-uk secure-trust-bank shawbrook-bank tandem-bank vanquis-banking-group yorkshire-building-society zopa

Explore

All headers Agent & Bot Identity Guidance on headers.apievangelist.com