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Rivac AI Labs
Testing & Quality Assurance

API Tester

A single undocumented change to an API response can quietly break every downstream integration that depends on it, and by the time a partner or a mobile app notices, the trust cost is already paid. This service builds automated contract and integration testing across your endpoints (functional behavior, edge cases, and third-party dependencies) so breaking changes get caught in a build, not in a partner's inbox. It's for teams shipping public or partner-facing APIs, or running enough microservices that manual spot-checks stopped being reliable. The result is a regression suite that fails the build the moment a contract breaks, instead of waiting for someone downstream to notice.

This is a capability we deliver for you as a service, not a role we’re hiring for.

How We’d Approach This

A clear, staged plan, not a black box

These are the service-specific steps inside our six-step process.

  1. 1

    Map existing endpoints, consumers, and integration points to find where contract breaks have caused problems before.

  2. 2

    Build automated test coverage for the highest-traffic or highest-risk endpoints first, as a pilot for the full suite.

  3. 3

    Review test results and contract definitions with API owners and consuming teams to close any gaps in shared understanding.

  4. 4

    Expand coverage to the full endpoint surface and wire it into CI so a broken contract blocks the build, not the customer.

What You Get

Deliverables from this engagement

  • Automated API test suite covering functional, contract, and edge-case behavior
  • API documentation validated against actual runtime behavior
  • CI integration that blocks releases on breaking changes
  • Mock and service-virtualization setup for third-party dependencies
  • Ongoing regression suite maintained as endpoints evolve

Six Ways We Could Architect This

Different engagement, different build, pick the shape that fits

There’s more than one way to deliver on this service. Browse a few of the ways we’d structure the work, depending on your speed, budget, and integration needs.

Read all 6 architectures as text

Lean Fast-Start Architecture

Setup

  • API Endpoint Inventory
  • Critical Contract List Defined
  • Test Framework Selected

Test Build

  • Contract Test Cases Written
  • Edge Case Scenarios Added
  • Third Party Dependency Stubs

Execution

  • Local Test Run
  • Pass Fail Report Generated

Delivery

  • Engineering Review
  • Regression Suite Committed
  • Build Pipeline Hook Added
  • Handoff to Dev Team

Cloud-Native / Managed Services Architecture

Managed API Layer

  • Cloud API Gateway
  • Managed Contract Testing Service
  • Schema Registry

Test Operations

  • Automated Test Runner Service
  • Third Party Sandbox Environments
  • Managed Mock Server

Results Layer

  • Test Results Data Store
  • Contract Drift Detection Engine

Delivery Layer

  • Cloud Dashboard for API Health
  • Automated Regression Report
  • Stakeholder Notification Service
  • Partner Facing Status Page

Event-Driven & Automation-First Architecture

Triggers

  • New Code Merged to Main
  • CI Build Triggered
  • Third Party API Version Change
  • Webhook Alert Received

Automation Layer

  • Automated Contract Test Suite Run
  • Auto Schema Diff Check
  • Auto Edge Case Validation

Review Gate

  • Contract Break Detected
  • Auto Fail the Build
  • Auto Pass and Deploy
  • Notify Engineering On Call

Delivery

  • Published Green Build Status
  • Incident Ticket Auto Created

Enterprise-Grade & Compliance-Ready Architecture

Governance Layer

  • API Contract Standards Policy
  • Third Party Risk Policy
  • Access Control for Test Credentials

Secure Testing Layer

  • Vaulted API Credentials Store
  • Role Based Test Execution Access
  • Versioned Contract Test Repository

Auditable Execution

  • Regression Suite Execution
  • Independent Security Review
  • Contract Change Log

Compliance Delivery

  • Redundant Test Evidence Archive
  • Audit Trail Export
  • Signed Off Regression Certification
  • Retention Schedule for API Logs

AI-Augmented, Human-in-the-Loop Architecture

Data Ingestion

  • API Specification Documents
  • Historical Traffic and Error Logs

AI Analysis Layer

  • AI Test Case Generator
  • AI Edge Case Discovery Engine
  • Draft Contract Test Suite

Human in the Loop

  • QA Engineer Review Session
  • Test Coverage Actually Sufficient
  • Flag Gaps Back to AI Model
  • Human Approved Test Suite

Delivery

  • Committed Regression Suite
  • CI Pipeline Integration
  • Build Fails on Contract Break

Integration-Heavy / Ecosystem-Connected Architecture

Client Systems

  • Client API Gateway
  • Partner Integration Endpoints
  • Internal Microservices Mesh

API Testing Core

  • Contract and Integration Test Engine
  • Endpoint Health Model
  • Regression Test Suite

Two Way Sync Layer

  • CI CD Pipeline Sync
  • Status Page Sync
  • Deployment Automation Tool
  • Partner Developer Portal

Shared Governance

  • Joint Review with Platform Team
  • Published API Health Report

More in Testing & Quality Assurance

Ready to get started?

Tell us what you’re trying to get done and we’ll help you find the highest-leverage place to start, scoped small enough to prove itself before you commit to anything bigger.

Talk to us about API Tester

Most engagements like this start as a $500–$2,500 pilot, see full pricing.

Questions? Book a free call