API Testing

APIs that keep working when the front end changes

Functional, contract, load and security testing for your REST and GraphQL APIs. We build the tests into your CI pipeline, so a breaking change fails the build before it reaches your users.

Scope my API testing WhatsApp usFrom $349 · testing starts within 48h

What we test

Every layer of the API

Start with the endpoints that carry your revenue, then widen the coverage sprint by sprint.

Functional

REST · GraphQL · gRPC

Status codes, payloads and error paths
Authentication and user roles
Pagination, filters and edge cases
Data written to the database

Contract

OpenAPI · Pact

Schema checks against your spec
Consumer-driven contracts between services
Breaking-change alerts on every pull request

Load and performance

k6 · JMeter

Response times under expected traffic
Spike and soak tests
Rate limits and timeouts

Security

OWASP API Security Top 10

Broken object-level authorization
Token and session handling
Excessive data exposure

Need a full security audit?

How it fits your team

Tests that live in your pipeline

Your stack, your repo

Postman, REST Assured, Playwright or Karate, chosen to match your team. The tests stay in your repository.

Runs on every build

GitHub Actions, GitLab CI, Azure DevOps or Jenkins. Failures land as clear, readable reports.

Stable test data

Seeded fixtures and mocks for third-party services, so tests fail for real bugs and not for flaky data.

Bug reports with proof

The request, the response, and what was expected, so your developers can reproduce each bug in minutes.

Your first week

From call to first test run

Scoping callDay 0
We review your API spec, environments and the flows that matter most.
QA lead namedWithin 24h
A named QA lead and a fixed plan for the first sprint.
Testing startsWithin 48h
The first critical endpoints are covered and running against your test environment.
Into CIEnd of week 1
The suite runs in your pipeline, with a short report on what is covered and what comes next.

Pricing

From $349

For a defined set of endpoints. Ongoing API testing is quoted monthly within 24 hours of the scoping call.

Scope my API testing Contact us

Questions

Before you book

Do you need our source code?

No. We test against the API from the outside, using your spec or documentation and test accounts. Access to the repository helps us add the tests to your pipeline.

We have no API documentation. Can you still test?

Yes. We map the endpoints from your app traffic and can produce an OpenAPI spec as part of the work.

Who owns the tests?

You do. The tests are written in your repository and stay with you after the engagement ends.