Functional API Testing

API Testing is critical to your API based projects, but do you really know how well they work and how they meet up to customer expectations. Test critical APIs before launch with our comprehensive test and monitoring solution. Validate assertions, verify your security works and test from real-world locations to identify problems outside of your API delivery stack.

API Testing

API editor

Know about issues before your users tell you

Multi-step calls

API testing involves more than just single transactions. Test entire API sequences that are critical to you and your users so you’re with them, every step of the way.

Verify API Functionality

Monitor API assertions and verify that APIs return what you expect and what users expect.

Real-time alerts

Trigger alerts to your preferred tools via email or webhook. Over a dozen integrations. Fast connections..

Cross Cloud from 80+ locations

Don't just conduct API testing inside your firewal. Users in different locations have different experiences. Make sure your APIs are working anywhere in the world they’re used.

Performance, SLAs and more

Go beyond just API testing into actual performance metrics. Measure latency, network effects, uptime, quality and more with fully integrated performance management & SLAs.

Easy setup, simple import

Set it up with our call creator or sync collections direct from your API documentation via Postman, OpenAPI, and more

“It’s really good … I see everything very quickly on one page and it makes it really easy to go to a problem spot and dig in.  Just the other day, we had a single, random incident where one of our APIs flagged a content error, and the whole system made it easy to capture what was needed for the engineers to go do some detailed examination.”

Val Novikov, CTO, FiSpan

Any API Request

Handle GET, PUT, POST, DELETE and more – any type of HTTP request – in our similar call manager.

Define Assertions

Set conditions. Override expected HTTP return codes for 200 failures. Set variables on a test or global basis.

Authentication Manager

Fully integrated security manager for API Keys & OAuth including JWT and JWS. Test scopes and token validity.

Networking Analysis

Gain insight into DNS issues and connection problems. Get breakdowns of latency and server times.

Import and Sync to collection management

Pull in your API testing collections direct from Postman for rapid development or sync to OpenAPI collections through our importer.

OpenAPI Initiative & APImetrics
Postman & APImetrics Postman Automated Collection Monitoring

AI-driven insights catch hidden problems in real-time

Sometimes problems with your APIs aren’t picked up by unit APi testing and we need to look deeper. APImetrics AI picks up performance problems that are often missed by other systems.

API workflow Cisco Spark Room

Detailed results for all API calls by location

See the complete breakdown of a call sequence from the network connection through to the in server processing times an external user would experience. See the request, the returned content and all data related to the call process.

rest api testing


Sync with your favorite API collection manager. Write directly to our API for your own import. Continuous integration scenarios for testing.


Out of the box integrations for Postman, OpenAPI, Slack, DataDog, HipChat, OpsGenie and many more. An essential part of your existing processes

Full Audit Trail

We have your results and full user activity tracking – and in most cases – even the content returned by your APIs – for as long as you’re a customer.

Slack & APImetrics
APimetrics Webhooks
Microsoft Teams & APImetrics
PagerDuty & APImetrics
DataDog & APImetrics
APImetrics OpsGenie

Your users don’t access the same cloud. Why monitor from just one?

It’s a world of containers and serverless architectures. You have little visibility on where your customers and partners are. You can’t risk only monitoring from a single cloud service.

With APImetrics, you don’t have to compromise. 75+ locations on public cloud locations around the world. A dynamic scheduling engine that allows you to set call frequencies and even downtime. Don’t be limited to AWS simply because that’s what someone picked as their platform.

Map of the world APImetrics KPIs for APIs global monitoring coverage API KPIs

Intelligent Scheduler

Unless you want to pick specific monitoring combinations, our intelligent scheduler does the work for you. Your APIs are exercised randomly from the locations you pick, giving you full coverage and confidence in performance.

Downtime Manager

Avoid being hit with errors or SLA issues when you expect to be down – schedule downtime for your APIs. We even provide an API to automatically integrate downtime from other developer tools.

API scheduler

Go straight from test cases to global functional monitoring and SLA delivery

Schedule your tests to run from any of our cloud locations at the click of a button and start generating shareable performance metrics and reports with no extra configuration and work.

Hand working monitoring over to other teams like customer success, business analysts and the C suite without any additional work.

API google hosted httpbin


Want to learn more? Check our our technical knowledge base. Browse our sector-by-sector data. Take a look at our guide to the API economy.

When you sign up now, even without a credit card, you’ll be running your first API call in minute

Take a detailed look

Download a detailed introduction to APImetrics and learn how we are bringing common standards to API monitoring with integrated monitoring, performance assurance and compliance analysis!