# Resource metadata — API reference

> Free-form key/value metadata on monitors and scheduled jobs — owner, playbook link, cost center. REST endpoints with request and response fields, examples in curl, JavaScript, Python, Go and PHP, and an in-browser Try it console.

Source: https://upfour.io/docs/api/metadata

[Developers](https://upfour.io/docs/api.md)/Monitoring

Free-form key/value metadata on monitors and scheduled jobs — owner, playbook link, cost center.

Base URL `https://app.upfour.io/v1`. Send your key as `Authorization: Bearer <key>`; every key acts on your real Company, so [test without paging anyone](https://upfour.io/docs/api/testing.md). New here? Start with the [quickstart](https://upfour.io/docs/api/quickstart.md). The examples read the key from `UP4_API_KEY`.

## Everyday

[GET **List resource metadata** /metadata](https://upfour.io/docs/api/metadata/list-resource-metadata.md)

## Control

[PUT **Replace resource metadata** /metadata](https://upfour.io/docs/api/metadata/replace-resource-metadata.md)