CrossEngage · OpenAPI Overlay 1.0.0

API Evangelist enhancements for File Attachment API

4 actions 2 updates update extends openapi/crossenagage-file-attachments-v1-openapi.yml

Derived by API Evangelist Built from the contracts CrossEngage publishes. CrossEngage did not publish this file.

View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-sourcex-apievangelist-conversionXngAuthToken

Targets 4

$.info

$.securityDefinitions

$.paths.*.*.operationId

$.paths.*.*.parameters

OpenAPI Overlay

overlay: 1.0.0
info:
  title: API Evangelist enhancements for File Attachment API
  version: 1.0.0
extends: openapi/crossenagage-file-attachments-v1-openapi.yml
x-generated: '2026-08-13'
x-method: generated
actions:
- target: $.info
  update:
    x-apievangelist-source: blueprint/crossenagage-file-attachments-v1.apib
    x-apievangelist-conversion: apib2swagger conversion of the provider-published API Blueprint
- target: $.securityDefinitions
  update:
    XngAuthToken:
      type: apiKey
      name: X-XNG-AuthToken
      in: header
      description: CrossEngage header authentication, documented in the API Blueprint under "Authentication".
- target: $.paths.*.*.operationId
  description: operationIds normalized to camelCase; the conversion emitted human-readable sentences that
    are not valid identifiers
- target: $.paths.*.*.parameters
  description: Added the X-XNG-ApiVersion required header parameter documented in the blueprint "Versioning"/"Headers"
    sections

Work with this as data

Every overlay 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 openapi overlays

4 MCP tools reach this

find_overlaysBrowse and filter every overlay 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 overlay

curl "https://apis.io/api/v1/overlays/crossenagage-file-attachments-v1-overlay"

All openapi overlays

curl "https://apis.io/api/v1/overlays?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.