API Development
That Scales

Stop wrestling with slow, fragile backends. Get a production-grade API built with Elixir—designed for concurrency, reliability, and growth.

Get Your API Quote Back to Home

Deliverables

What You Get

A robust, well-documented API that your frontend team or partners can integrate with confidence.

RESTful or GraphQL design.
Well-structured endpoints following industry best practices. Choose REST for simplicity or GraphQL for flexibility.
Authentication & authorization.
JWT tokens, API keys, or OAuth2—secure your endpoints with the right auth strategy for your use case.
Database modeling & optimization.
PostgreSQL schema designed for performance and data integrity. Indexes, migrations, and queries that scale.
Complete documentation.
OpenAPI/Swagger docs, example requests, error codes—everything your team needs to integrate successfully.
Third-party integrations.
Connect to Stripe, Twilio, SendGrid, or other services your business depends on. Webhooks included.
Production deployment.
Deployed on Fly.io or similar, with SSL, monitoring, and automated health checks. Not a localhost demo.

Why Cobalt Sentry

Experience meets modern delivery

20+ Years Combined Experience

Our team brings decades of production software delivery across diverse industries and tech stacks.

Enterprise-Grade Quality

Security, scalability, and reliability standards refined through Fortune 500 projects.

Modern Stack

Cutting-edge frameworks and AI-assisted development for rapid, high-quality delivery.

Process

How It Works

A streamlined process to take your API from requirements to production deployment.

  1. 1

    Requirements Review

    Share your API spec, integration needs, or rough feature list. We'll propose an endpoint structure and data model.

  2. 2

    Build Core Endpoints

    Start with authentication and your most critical endpoints. Get something working you can test against immediately.

  3. 3

    Iterate & Expand

    Add remaining endpoints, wire up integrations, handle edge cases based on your feedback during testing.

  4. 4

    Deploy & Document

    Ship to production with full API documentation. Your team gets endpoint URLs, example code, and support for integration.

API Projects Start at $10,000

Fixed-price projects, no hourly rates. Get a detailed quote tailored to your specific requirements.

Ready to build your API?

Get in touch to discuss your requirements and receive a detailed project proposal within 24 hours.

Start Your API Project

Tell us about your API needs and we'll get back to you with a tailored proposal.