American Express Global Business Travel

American Express Global Business Travel Third Party Acknowledgement API

The Third Party Acknowledgement API from American Express Global Business Travel — 1 operation(s) for third party acknowledgement.

Documentation GitHub OpenAPI

Operations 1

POST /v1/billing-entity/thirdparty/response/gbt-customer #

Work with this as data

Every API 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 apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
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 API

curl "https://apis.io/api/v1/apis/amex-gbt-third-party-acknowledgement-api"

All apis

curl "https://apis.io/api/v1/apis?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.

OpenAPI Specification

openapi: 3.2.0
info:
  title: OpenAPI definition Third Party Acknowledgement API
  version: v0
servers:
- url: https://apis.egencia.com/openconnect/api
  description: API Server
tags:
- name: Third Party Acknowledgement
paths:
  /v1/billing-entity/thirdparty/response/gbt-customer:
    post:
      tags:
      - Third Party Acknowledgement
      operationId: saveAcknowledgement
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/GbtCapAckRequest'
        required: true
      responses:
        '200':
          description: <b>Retrieve</b>, indicating that the acknowledgement request has succeeded.
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '401':
          description: '<b>Unauthorized</b> : <i>authentication token</i> empty3, invalid or expired'
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '404':
          description: '<b>Not Found</b> : the resource does not exist.'
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '201':
          description: <b>Created</b>, indicating that the submitted creation request has succeed. The response HTTP header <i>Location</i> contains the resource identifier.
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '403':
          description: <b>403 - Forbidden</b>
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '422':
          description: '<b>Invalid input</b> : invalid or missing required input.'
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
        '500':
          description: '<b>Internal Server Error</b> : unable to process request'
          content:
            application/json;charset=utf-8:
              schema:
                $ref: '#/components/schemas/ErrorNode'
components:
  schemas:
    GbtCapAckRequestData:
      type: object
      properties:
        dk_number:
          type: string
        reporting_id:
          type: string
        reporting_name:
          type: string
        timestamp:
          type: integer
          format: int64
        billing_dk_number:
          type: string
        client_id:
          type: string
        account_number:
          type: string
    GbtCapAckRequest:
      type: object
      properties:
        status:
          type: string
          enum:
          - SUCCESS
          - ERROR
        code:
          type: string
        message:
          type: string
        transactionId:
          type: string
        errorTyp:
          type: string
        acknowledgementSuccessDetails:
          $ref: '#/components/schemas/GbtCapAckRequestData'
    ErrorNode:
      type: object
      properties:
        errorCode:
          type: string
        errorDescription:
          type: string
  securitySchemes:
    oAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://apis.egencia.com/auth/v1/token