Mailosaur

Mailosaur Previews API

Operations for discovering the email clients available for generating email previews (screenshots of an email rendered in real clients).

Documentation GitHub OpenAPI

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

GET /api/screenshots/clients List email clients available for previews · List available email clients for previews #

Ask an LLM

“Which email clients can I render my email previews in?”

“Is Outlook on Windows one of the supported preview clients?”

Tell an agent

List every email client available for email previews.

Show me the client names I can request screenshots for.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Mailosaur Previews API
  description: REST API for email and SMS testing. Provides endpoints for managing test inboxes (servers), retrieving and searching messages, running deliverability checks, generating OTPs for authenticator testing, and accessing account usage data. All requests authenticate via HTTP Basic Auth using an API key.
  version: 1.0.0
  contact:
    name: Mailosaur Support
    url: https://mailosaur.com/docs/api
  termsOfService: https://mailosaur.com/terms
  license:
    name: Commercial
    url: https://mailosaur.com/terms
servers:
- url: https://mailosaur.com
  description: Mailosaur production API
security:
- basicAuth: []
tags:
- name: Previews
  description: Operations for discovering the email clients available for generating email previews (screenshots of an email rendered in real clients).
paths:
  /api/screenshots/clients:
    get:
      operationId: listEmailClients
      summary: List available email clients for previews
      description: List all email clients that can be used to generate email previews.
      tags:
      - Previews
      responses:
        '200':
          description: A list of available email clients.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailClientListResult'
components:
  schemas:
    EmailClient:
      type: object
      description: An email client available for generating email previews.
      properties:
        id:
          type: string
          description: The unique identifier of the email client.
        name:
          type: string
          description: The name of the email client.
        platforms:
          type: array
          description: Available platform/capture variants for this client.
          items:
            type: object
            properties:
              id:
                type: string
                description: The platform identifier.
              name:
                type: string
                description: The platform name.
    EmailClientListResult:
      type: object
      description: A list of available email clients for generating previews.
      properties:
        items:
          type: array
          description: A list of email clients.
          items:
            $ref: '#/components/schemas/EmailClient'
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: HTTP Basic Auth using your Mailosaur API key as the username and an empty password, or your API key as both username and password.