Barclays Card Account Details Inquiry External API
The card account details inquiry external API is Barclays US’s credit cards acquisitions solution which will orchestrate the Internal API calls providing account information, such as account peek/summary for an account
Barclays Card Account Details Inquiry External API is one of 64 APIs that Barclays publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include card-account-details-inquiry-external-api. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes 3 operations across 3 paths, and defines 22 schemas. It is described by OpenAPI 3.2.0, at version 2.0.
Requests are made against the base URL https://telesto.api.barclays/open-banking/v3.1.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Barclays Card Account Details Inquiry External API declares
1 security scheme
for authenticating requests.
It supports OAuth 2.0 (ExternalTiaaUsCCAuth) using the clientCredentials flow, exposing 2 scopes.
ExternalTiaaUsCCAuth— OAuth2.0 Client Credentials Grant authentication using TIAA-US for external APIs
Paths & Operations 3
Across 3 paths, the API surfaces 3 operations — 1 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.
The card account details inquiry external API is Barclays US’s credit cards acquisitions solution which will orchestrate the Internal API calls providing account information, such…
Schemas 22
The contract defines 22 schemas that model the data the API accepts and returns. The most detailed are AccountSummaryResAttributesV2 (10 properties), ErrorType (5 properties), AccountLookupResponse (4 properties), AccountInfo (4 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Barclays 12
Other APIs Barclays publishes across the network.
This is an independent, third-party profile of Barclays Card Account Details Inquiry External API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.