> For the complete documentation index, see [llms.txt](https://docs.parqex.com/-MUyxAVrX9S4wky8UoX6/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parqex.com/-MUyxAVrX9S4wky8UoX6/getting-started/using-restful-tools.md).
# Using RESTful Tools
We love tools. Many of them make prototyping against APIs quick and easy. However, there are limitations to these tools that you must be aware of which will cause errors messages when contacting the Garageio API.
[**Echo**](http://echoapp.net/) - Echo is a great little native app for OSX for testing APIs but it is known to block/override a couple of critical headers required by the Garageio Service, such as `Accept-Charset`.
[**POSTMAN**](https://chrome.google.com/webstore/detail/postman/fhbjgbiflinjbdggehcddcbncdddomop) - Postman is a fairly feature-rich app that runs atop the Google Chrome web browser. It too restricts a ton of headers, which are conveniently listed in Postman’s documentation. Some headers Postman blocks will certainly cause an issue with testing the Garageio Service:
* `Accept-Charset`
* `Accept-Encoding`
* `Host`
[
](https://docs.beamlabs.io/getting-started/requesting-an-account)
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