Optimizely Transactional Mail API

Send transactional emails triggered by recipient actions or events.

Documentation GitHub OpenAPI

Business capability

Email AE-150.10

Operations 1

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

POST /{clientId}/transactionalmail Send a transactional email · Send a transactional mail #

Ask an LLM

“How do I send an order confirmation or password reset email to one recipient?”

“Can I personalize a transactional email with my own key-value data?”

Tell an agent

Send transactional mailing {mailing_id} to {recipient_email} from client {clientId}.

Email {recipient_email} using template {mailing_id} personalized with {personalization}.

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/optimizely:optimizely-transactional-mail-api"

All apis

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

OpenAPI Specification

openapi: 3.2.0
info:
  title: Optimizely Campaign REST Transactional Mail API
  description: The Optimizely Campaign REST API provides programmatic access to Optimizely's email and omnichannel campaign management capabilities.
  version: '1.0'
  contact:
    name: Optimizely Support
    url: https://support.optimizely.com
  termsOfService: https://www.optimizely.com/legal/terms/
servers:
- url: https://api.campaign.episerver.net/rest
  description: Optimizely Campaign Production Server
security:
- basicAuth: []
tags:
- name: Transactional Mail
  description: Send transactional emails triggered by recipient actions or events.
paths:
  /{clientId}/transactionalmail:
    post:
      operationId: sendTransactionalMail
      summary: Send a transactional mail
      description: Sends a transactional email to a specific recipient. Transactional mails are triggered by recipient actions or events such as order confirmations, password resets, or account notifications.
      tags:
      - Transactional Mail
      parameters:
      - $ref: '#/components/parameters/clientId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TransactionalMailInput'
      responses:
        '200':
          description: Transactional mail successfully sent
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionalMailResponse'
        '400':
          description: Invalid request body
        '401':
          description: Authentication credentials are missing or invalid
components:
  parameters:
    clientId:
      name: clientId
      in: path
      required: true
      description: The unique identifier for the Optimizely Campaign client
      schema:
        type: string
  schemas:
    TransactionalMailInput:
      type: object
      description: Input for sending a transactional email
      required:
      - recipient_email
      - mailing_id
      properties:
        recipient_email:
          type: string
          format: email
          description: Email address of the recipient
        mailing_id:
          type: integer
          format: int64
          description: Identifier for the transactional mailing template
        personalization:
          type: object
          description: Key-value pairs for personalizing the email content
          additionalProperties:
            type: string
    TransactionalMailResponse:
      type: object
      description: Response from sending a transactional mail
      properties:
        status:
          type: string
          description: Status of the send operation
          enum:
          - success
          - failed
        message_id:
          type: string
          description: Unique identifier for the sent message
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic authentication using the Optimizely Campaign API credentials.
externalDocs:
  description: Optimizely Campaign REST API Documentation
  url: https://docs.developers.optimizely.com/optimizely-campaign/docs/rest-api

Optimizely Transactional Mail API

Operations 1

Documentation

Specifications

Schemas & Data

Other Resources