APIs That Power Your Platform and Create an Integration Ecosystem

Your SaaS API is both the backbone of your product and the gateway for third-party integrations. We build versioned, well-documented REST and GraphQL APIs designed for reliability, performance, and developer experience.

42%

of developer time is wasted on poorly designed systems, and a well-designed API prevents this waste for both your internal team and your integration partners

Stripe, 2018

SaaS API Development

Robust, versioned APIs with comprehensive documentation that power your SaaS platform internally and enable third-party integrations externally.

What's Included

Everything you get with our SaaS API Development

API Architecture and Contract Design

Complete API specification with endpoint definitions, request/response schemas, authentication flows, rate limiting policies, and versioning strategy documented in OpenAPI format

API Implementation with Test Suite

Production-ready API with comprehensive test coverage, input validation, error handling, pagination, filtering, and rate limiting

Interactive API Documentation

Auto-generated, interactive API documentation with code examples, authentication guides, and sandbox environments for third-party developers

Our SaaS API Development Process

1

API Strategy and Contract Design

We design the API architecture: resource modeling, endpoint design, authentication strategy, rate limiting policies, and versioning approach. Every endpoint is specified in OpenAPI format with full request and response schemas.

2

Implementation with Test Coverage

We implement the API against the contract specification with comprehensive validation, error handling, pagination, and filtering. Automated tests verify that the implementation matches the contract exactly.

3

Documentation and Developer Experience

We generate interactive API documentation, write integration guides, create sandbox environments, and build code examples in the languages your integration partners use most.

4

Performance Testing and Deployment

We load-test the API under realistic traffic patterns, optimize slow endpoints, configure rate limiting, and deploy with monitoring that alerts on latency spikes, error rate increases, and quota violations.

Key Benefits

Contract-first design eliminates integration surprises

Every endpoint is defined in an OpenAPI specification before implementation begins. Frontend, mobile, and integration teams start building against the spec immediately. The implementation is validated against the contract through automated testing, eliminating the 'the API changed and broke my integration' surprises.

Documentation that developers actually use

Auto-generated interactive documentation from the OpenAPI spec means docs are always accurate and up-to-date. Code examples in multiple languages, authentication walkthroughs, and sandbox endpoints let third-party developers integrate without filing support tickets.

Versioning that protects existing integrations

API versioning with clear deprecation policies means you can evolve your API without breaking existing integrations. New versions coexist with old ones during migration periods. Your integration partners get advance notice and migration guides.

Research & Evidence

Backed by industry research and proven results

The Developer Coefficient

Developers spend 42% of their time dealing with technical debt, much of which originates from poorly designed API contracts and inconsistent data models

Stripe (2018)

API Economy Report

Companies with public APIs grow their partner ecosystem 3x faster than those without, making API design a direct business growth driver for SaaS platforms

MuleSoft (2022)

Frequently Asked Questions

Should we build REST or GraphQL?

REST for public APIs consumed by third-party developers, because it is simpler to understand, cache, and document. GraphQL for internal APIs consumed by your own frontend, where the flexibility of requesting exactly the data you need reduces over-fetching and improves performance. Many SaaS platforms benefit from both: GraphQL internally and REST externally.

How do you handle API authentication?

For third-party integrations, API keys with scoped permissions and rate limits. For user-facing API calls, JWT tokens tied to authenticated sessions. For server-to-server communication, OAuth 2.0 client credentials. We implement the appropriate pattern for each use case and document it clearly.

How do you version APIs?

URL-based versioning (v1, v2) for major breaking changes. Additive changes like new fields and endpoints are added to the current version without breaking existing integrations. Deprecated endpoints get sunset headers and a documented migration timeline.

How long does SaaS API development take?

A focused API with 15 to 30 endpoints, authentication, documentation, and testing takes 4 to 8 weeks. A comprehensive platform API with 50+ endpoints, GraphQL, webhooks, and a developer portal takes 8 to 14 weeks. We deliver incrementally so core endpoints are available before the full API is complete.

Build APIs That Power Your Platform and Grow Your Ecosystem

Share your platform requirements and integration goals. We will design the API architecture that serves your product and your partners.