Checkly

Checkly provides an active reliability layer for developers and software agents. It enables teams to create, manage, and deploy synthetic monitors, tests, and alerts using a code-first approach. The platform supports a range of languages and frameworks, allowing users to define monitoring logic in JavaScript/TypeScript, Terraform, or Pulumi. This method treats reliability checks as version-controlled code, enabling them to be tested and deployed like application features.

The tool uses Playwright to run synthetic checks, letting developers simulate user journeys, such as a checkout flow, across various global regions. Monitors can be deployed to more than 20 locations worldwide from one command. Checkly integrates with AI models like Claude and OpenAI, allowing developers to add agents that test, monitor, and respond to incidents automatically.

Starting the workflow is direct, often beginning with commands such as npx checkly init. After checks are defined, they can be tested locally using npx checkly test and then deployed globally using npx checkly deploy. The platform handles complex monitoring requirements, including setting up heartbeat checks for ETL pipelines or creating browser checks that verify specific UI interactions and response times.

Best for

• DevOps engineers needing to ensure global uptime and performance across multiple regions.
• Product teams building complex user flows, such as e-commerce checkouts.
• Developers integrating AI agents into their CI/CD pipelines for automated incident response.
• Teams that require infrastructure-as-code for defining and managing monitoring resources.
• Engineers who need to verify API routes and service health across various deployment locations.

Frequently asked questions

What technology does Checkly use for synthetic checks?

Checkly uses Playwright to execute synthetic checks and monitor application performance and functionality.

How many global locations can monitors be deployed to?

Monitors can be deployed to over 20 locations worldwide.

What programming languages can monitors be written in?

Monitors can be written and versioned using JavaScript/TypeScript, Terraform, or Pulumi.

How does Checkly integrate with AI?

Checkly allows developers to add agents that use models like Claude and OpenAI to test, monitor, and respond to incidents.

What is the primary function of the platform?

It functions as an active reliability layer, allowing teams to detect, communicate, and resolve software incidents through automated tests and monitoring.

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