Yes, token expiry, permission boundaries, and malformed or malicious payloads are all part of a standard API testing engagement. For deeper penetration-style coverage, pair this with our Security Testing service.
From contract checks to end-to-end payload validation, we help teams ensure every integration layer behaves the way it should under real-world conditions. That includes the happy path, but also authentication edge cases, malformed input, rate limits, timeouts, and the failure modes of third-party services you don't control.
Contract, payload, security, and resilience testing across every API and integration layer, including the failure modes that only show up when something else breaks first.
Test checklist
Depth of coverage
Requests and responses checked against your OpenAPI/Swagger spec so contracts never drift silently.
Token expiry, scopes, and permission boundaries tested, not just the logged-in happy path.
Malformed payloads, missing fields, and invalid types, deliberately thrown at every endpoint.
Response time and stability checks under concurrent request volume, run alongside our Performance Testing service.
Asynchronous, event-driven integrations validated for delivery, ordering, and retry behavior.
Mocked third-party dependencies so we can test failure modes you can't safely trigger in production.
Workflow
We start from your OpenAPI spec or, if there isn't one, document the actual contract as we test.
Functional, negative, auth, and resilience cases mapped to every endpoint.
Automated and exploratory runs against staging, and safely mocked third-party dependencies.
Suites wired into your pipeline so contract regressions are caught on every build.
Common questions
Yes, token expiry, permission boundaries, and malformed or malicious payloads are all part of a standard API testing engagement. For deeper penetration-style coverage, pair this with our Security Testing service.
Keep exploring
Tell us where you are in the product lifecycle and we'll recommend the right mix of testing, consulting, and enablement.