# Checkly API Monitoring

**Source**: https://www.checklyhq.com/product/api-monitoring/

> Reduce downtime by proactively monitoring your APIs and web services. Prevent performance issues in the APIs that power your app with the only programmable synthetic monitoring platform.

Quickly create monitors from your OpenAPI spec, or design multistep API monitors that simulate real data moving through your system. Checkly monitors APIs from 20+ global locations with checks running as frequently as every 10 seconds.

## What it does

- **Automate monitor creation**: Programmatically define monitors in TypeScript/JavaScript, or upload an OpenAPI spec. Monitor APIs from 20+ global locations with checks as frequent as every 10 seconds.
- **Instantly alert the right team**: Configure schedules, messages, and alerting channels alongside your application code to build incident automations that notify teams with the context they need for fast resolution.
- **Pinpoint what went wrong**: Checkly Traces gives deep, full-stack visibility so engineers can identify exactly what failed and resolve it quickly.
- **Monitor for performance**: Response times are recorded with TCP, DNS, and first-byte breakdowns. Assertions can validate maximum response-time thresholds.
- **Monitor for correctness**: Validate payloads, return codes, headers, and authentication, and drill into JSON payloads using JSON path expressions.
- **Monitor for uptime**: Monitor APIs multiple times per minute from 20+ global data center locations or from within your firewall.
- **Communicate uptime automatically**: Branded status pages, automatic incident triggering on check alerts, real-time subscriber updates, and transparent uptime history / SLA displays.

## Key facts

- Monitors run from **20+ global locations**.
- API checks can run as frequently as every **10 seconds**.
- Create monitors from an **OpenAPI spec**, or as code in TypeScript/JavaScript.
- Multistep checks chain multiple API calls to test complete workflows.
- Trusted by teams including Deno, Vercel, 1Password, CrowdStrike, Autodesk, and Render.

> "Checkly gives us real-time feedback on what is and isn't working. Using Checkly is a great way for us to create value, and we're confident in the value that we bring to our customers." — Thomas Reither, Associate Consultant at Solutia

## Related

- [API Monitoring (full page)](https://www.checklyhq.com/product/api-monitoring/)
- [Synthetic Monitoring](https://www.checklyhq.com/product/synthetic-monitoring/)
- [Uptime Monitoring](https://www.checklyhq.com/product/uptime-monitoring/)
- [Traces](https://www.checklyhq.com/product/traces/)
- [Pricing](https://www.checklyhq.com/pricing/)
- [API Reference](https://www.checklyhq.com/docs/api-reference/overview/)
- [Start for free](https://app.checklyhq.com/signup/)