AI API testing for
real application behavior.

Check requests, responses, contracts and business behavior before release, with a record of each run. Catch a breaking change before consumers do.

Capabilities

Contracts that never silently break

From plain-English checks to CI-triggered verification — API confidence without a test framework to maintain.

Status & schema verification

Check that endpoints return the right status codes, response shapes, and required fields — every time, not just at launch.

Plain-English contract checks

Describe the expected behavior in natural language. No framework, no test code, no selectors to maintain.

CI & webhook triggers

Run contract checks on every deploy, every PR, or on a schedule — so breaking changes are caught the moment they land.

Evidence on every check

Request/response bodies, headers, timing, and network context come back with each run — no black box.

Contract risks in code review

TimetoTest reviews pull requests for API changes that could break contracts — renamed fields, removed endpoints, changed schemas.

Faster release decisions

Confidence that your API contract holds lets you ship more often and roll back less.

How it works

Contract verification in four steps

Describe, target, run, automate. No test code required.

01

Describe the contract

Tell TimetoTest what an endpoint should return — status code, shape, key fields — in plain English.

02

Point it at the environment

Target your dev, staging, or production base URL, or a specific release candidate.

03

Run and review evidence

TimetoTest executes the request, captures request/response and network context, and shows you exactly what came back.

04

Automate it

Hook the check into CI or a webhook so every deploy verifies the contract before users see it.

FAQ

API contract testing, explained

What is API contract testing?

API contract testing verifies that an API returns the expected status codes, data shapes, and behavior that consumers rely on. It catches breaking changes before they break your frontend or downstream services.

How is TimetoTest different from other API testing tools?

TimetoTest covers API contracts, browser journeys, and pull request code review from one agent. Every API check returns evidence — request/response, headers, timing, and network context — so a failed contract is debuggable in minutes.

Do I need to write test code for API contracts?

No. You describe the expected behavior in plain English and TimetoTest runs the verification. You can also trigger checks from CI or webhooks without maintaining a separate framework.

What kinds of contracts does TimetoTest check?

Status codes, response schemas, required fields, header values, content types, error responses, and endpoint behavior across environments and release candidates.

Ship API changes
without the surprise.

Run your first contract check in under 2 minutes. Free to start.

No credit card requiredWorks with GitHub & GitLab