Welcome to the MailSlurp quick start guide. Use this page to start your journey. ## What is MailSlurp MailSlurp is an email and phone number API service for testing, development, deliverability monitoring, and AI automations. It gives teams programmable inboxes, phone numbers, message inspection, wait logic, device previews, and event routing through both a dashboard and developer APIs. Use this page as a map: start with the main platform features, choose how you want to use MailSlurp, then jump into the right reference or learning resource. ## What are the main features of MailSlurp? These are the core platform areas you can combine for testing, development, monitoring, and automation workflows.

Programmable email addressesCreate real inboxes on demand, receive messages, inspect content, manage attachments, and isolate each workflow. Programmable phone numbersProvision phone numbers for SMS, OTP, and transactional messaging flows without relying on shared devices. Testing functionalityValidate email, SMS, authentication, and notification behavior with deterministic waits and message assertions. End-to-end testing functionalityRun browser and API tests against real inboxes and phone numbers so release checks match production behavior. Device renders and previewsPreview email output across clients and devices to catch layout, content, and compatibility issues before launch. Domain monitoringWatch sender domains, DNS posture, campaign output, and deliverability signals before problems reach customers. AI data extractionUse AI transformers to extract structured fields from inbound messages, documents, and attachments. Automations and webhooksRoute inbound events into your systems with webhooks, forwarding, routing rules, and downstream automations. Identity, verification, and lookupVerify addresses, test identity flows, manage API authentication, and support sign-in or compliance checks.

## How to use MailSlurp MailSlurp is an API and dashboard platform. You can create resources manually in the app, call the REST API directly, or install an SDK for your language or test framework. The same resources are available across all access paths, so you can prototype without code and then automate the workflow in tests, scripts, CI jobs, or third-party integrations. You can use MailSlurp manually for operations and debugging, or integrate it into code tests, automations, and plugins. Common workflows include generating disposable inboxes for sign-up tests, receiving OTP codes, checking email rendering before release, monitoring sender domains, extracting data from attachments, and routing inbound messages into downstream systems. ### Main ways to get started Choose the access path that matches how you want to try MailSlurp first: dashboard, API key, or SDK.

Create resources in the appUse the dashboard to create inboxes, phone numbers, domains, rules, monitors, and automations without code. Get an API keyGenerate a developer API key, then authenticate SDK clients or REST calls with the same account resources. Install SDKs and pluginsUse generated clients and framework guides for JavaScript, Java, C#, Python, PHP, Ruby, Go, and more.

Create account ## Example workflows Expand a scenario to plan the kind of workflow you want to build; detailed steps can be added to each section.

Write automated email/SMS tests

View the documentation here.

Control phone numbers and email accounts in code

View the documentation here.

Render emails on different devices

View the documentation here.

Improve inbox placement and domain reputation

View the documentation here.

Analyze email quality and compatibility

View the documentation here.