Mailchimp · OpenAPI Overlay 1.0.0

API Evangelist enhancements for Mailchimp Transactional API

2 actions 2 updates update extends openapi/mailchimp-transactional-api-openapi.yml
Generated by API Evangelist Written by API Evangelist tooling for Mailchimp's API. It is a proposal applied on top of the contract, not a document Mailchimp publishes.
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What the actions change

x-apievangelist-providerx-apievangelist-apix-apievangelist-artifactsx-apievangelist-mcp-serverx-mailchimp-transactional-note

Targets 1

$.info

OpenAPI Overlay

Raw ↑ 
overlay: 1.0.0
info:
  title: API Evangelist enhancements for Mailchimp Transactional API
  version: 1.0.0
x-generated: '2026-06-20'
x-method: generated
extends: openapi/mailchimp-transactional-api-openapi.yml
actions:
  - target: $.info
    update:
      x-apievangelist-provider: mailchimp
      x-apievangelist-api: mailchimp:mailchimp-transactional-api
      x-apievangelist-artifacts:
        authentication: authentication/mailchimp-authentication.yml
        errors: errors/mailchimp-problem-types.yml
        conventions: conventions/mailchimp-conventions.yml
        sandbox: sandbox/mailchimp-sandbox.yml
        mcp: mcp/mailchimp-mcp.yml
      x-apievangelist-mcp-server: https://mandrillapp.com/mcp
  - target: $.info
    update:
      x-mailchimp-transactional-note: >-
        All Transactional (Mandrill) calls are HTTP POST with the API key in the
        JSON body "key" parameter (or the X-MC-ApiKey header). A test API key
        exercises the API in test mode without delivering mail — see
        sandbox/mailchimp-sandbox.yml.