Building API Clients Faster with apiexplorer.io and Martini

At Lonti, we believe developers shouldn’t waste time fighting with APIs. You’ve got better things to do than debug request headers, decipher vague documentation, or set up mock services just to test an integration.

That’s exactly why we created apiexplorer.io: to give you real, production-grade demo APIs you can use instantly—no setup, no fluff, no nonsense.

And when paired with Martini, our low-code platform for API integration, you can go from concept to working API client in minutes. This post will show you how.

A Better Way to Prototype with APIs

We built apiexplorer.io to solve a very specific pain: most developers don’t have quick access to high-quality APIs when they’re trying to prototype, test workflows, or validate integration ideas.

With apiexplorer.io, you get a full suite of enterprise-grade APIs—Billing, CRM, Ecommerce, Inventory, HCM, and more—all with:

• A clean, RESTful interface
  
  
• Instantly provisioned API key on signup
  
  
• Interactive API Explorer UI
  
  
• Postman collections and OpenAPI specs
  
  
• A frontend demo application for every API
  
  

Whether you’re evaluating platforms, building POCs, or just need a reliable test API to simulate business systems—this is the fastest way to get started.

Consuming apiexplorer.io APIs with Martini

Martini makes it incredibly easy to consume any API—and apiexplorer.io is no exception. Martini’s HTTP Client lets you create, configure, and test requests in just a few clicks. And because it’s part of a full-stack integration platform, those requests can be embedded directly into your workflows, services, or scheduled jobs.

Here’s how to set up an API request using the CRM API from apiexplorer.io:

1. Create a new HTTP request in Martini.

• Set the method and URL:
  GET https://demo-api.apiexplorer.io/api/lonti_demo_api_crm/1.0/contact?limit=20&offset=0&search=
  
  

2. Under Headers, add:

• • Name: Accept
  • Value: application/json

• Name: X-Authorization 
• Value: Bearer YOUR_API_KEY
  
  

3. Click Test. You’ll immediately see a list of leads returned from the CRM API.

From there, you can transform the data, map it to your internal models, or pass it downstream to other systems—all using Martini’s visual low-code editors.

Bring That API Into a Workflow, API, or Service

Once you’ve tested your request, you can easily turn it into a reusable service with just a couple of clicks. Martini’s HTTP client lets you export the request as a service, which means you can reference it anywhere—across workflows, other services, or APIs—without having to recreate the configuration.

For example, you could:

• Call the exported service inside a workflow that automates lead enrichment or routing.
  
  
• Invoke it from another service or API, keeping your logic modular and reusable.
  
  
• Schedule it to run periodically, or trigger it based on events like webhook calls or user interactions.

This makes your integration more maintainable, easier to update, and faster to scale across use cases.

Built for Speed. Designed for Developers.

This isn’t just about making prototyping easier. It’s about empowering developers with the tools they need to move faster, with fewer barriers.

Using apiexplorer.io + Martini, you get:

• Realistic test APIs without setup headaches
  
  
• Fully integrated HTTP client tools that connect to anything
  
  
• A unified low-code environment that doesn’t limit what you can build

We built these tools for professional developers who want flexibility without friction. Everything in Martini is designed to work the way developers do—quickly, iteratively, and with full control when you need it.

Try It Yourself

Sign up for apiexplorer.io—it’s free, and your API key is available immediately. Then open up Martini and create your first integration. You’ll have working API clients in minutes, and a full integration pipeline not long after.

This is what we mean when we say low code, no limits. You get the speed of visual development with the power to go deep—because real developers shouldn’t have to compromise.

Got questions? Feedback? Want to show us what you’re building? We’d love to hear from you.