American Express Global Business Travel · Authentication Profile

Amex Gbt Authentication

Authentication

American Express Global Business Travel secures its APIs with oauth2 across 1 declared security scheme, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the clientCredentials flow(s).

TravelUnited StatesCorporate TravelTravel ManagementBusiness TravelDistributionBookingAviationHotelsRailCar RentalExpenseDuty of CareReporting
Methods: oauth2 Schemes: 1 OAuth flows: clientCredentials API key in:

Security Schemes

OAuth2 oauth2
· flows: clientCredentials

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-28'
method: derived
source: openapi/amex-gbt-approval-workflow-api-openapi.json, openapi/amex-gbt-booking-api-openapi.json,
  openapi/amex-gbt-cancellation-deletion-api-openapi.json, openapi/amex-gbt-company-cdf-api-openapi.json,
  openapi/amex-gbt-company-info-api-openapi.json, openapi/amex-gbt-duty-of-care-api-openapi.json,
  openapi/amex-gbt-receipt-api-openapi.json, openapi/amex-gbt-reporting-api-openapi.json, openapi/amex-gbt-service-bi-openapi.json,
  openapi/amex-gbt-service-company-openapi.json, openapi/amex-gbt-service-dutyofcare-openapi.json,
  openapi/amex-gbt-service-openconnect-openapi.json ...
summary:
  types:
  - oauth2
  oauth2_flows:
  - clientCredentials
schemes:
- name: OAuth2
  type: oauth2
  flows:
  - flow: clientCredentials
    tokenUrl: https://apis.egencia.com/auth/v1/token
    scopes: 0
  sources:
  - openapi/amex-gbt-approval-workflow-api-openapi.json
  - openapi/amex-gbt-booking-api-openapi.json
  - openapi/amex-gbt-cancellation-deletion-api-openapi.json
  - openapi/amex-gbt-company-cdf-api-openapi.json
  - openapi/amex-gbt-company-info-api-openapi.json
  - openapi/amex-gbt-duty-of-care-api-openapi.json
  - openapi/amex-gbt-receipt-api-openapi.json
  - openapi/amex-gbt-reporting-api-openapi.json
  - openapi/amex-gbt-service-bi-openapi.json
  - openapi/amex-gbt-service-company-openapi.json
  - openapi/amex-gbt-service-dutyofcare-openapi.json
  - openapi/amex-gbt-service-openconnect-openapi.json
  - openapi/amex-gbt-user-sync-api-openapi.json

Work with this as data

Every security artifact here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for security posture

4 MCP tools reach this
  • find_securityBrowse and filter every security artifact in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This security artifact 
curl "https://apis.io/api/v1/security/amex-gbt-authentication"
All security posture 
curl "https://apis.io/api/v1/security?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

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.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.