- API Usage Limits
- API Domain
- Authentication Method and HTTPS Protocol Support
- Setup an API Application in ProntoForms
- Help with Extended Request Types (PUT and DELETE)
- Using POST and PUT Requests to Create and Update
- Supported Media Types
- Date and Time Formats
- UTF-8 Encoding
- ProntoForms REST API Code Samples
- Using CURL to Test and Debug Your API Clients
API calls to the ProntoForms are limited to 2500 a day per team. The limit is shared across all applications within the team. The call count resets at midnight UTC.
API calls are also limited to a maximum of 3 simultaneous requests per API key. Customers are limited to 3 API keys.
Please contact firstname.lastname@example.org if these limits pose a problem for your application.
All API URLs should be accessed via the domain api.prontoforms.com.
The API currently uses basic authentication. This was chosen for the simplicity and pervasiveness that Basic provides. API requests are required to transmit over SSL (HTTPS) to ensure your credentials are safe and secure. The HTTP protocol is not supported.
[ top ]
API URLs contain a version number. This will allow us to upgrade our API in the future while still continuing to support existing API clients. Replace [version] in this document with the version you are developing against. We are currently at version 1.1.
[ top ]
We use the full set of request methods in our API (GET, POST, PUT, DELETE). If you find your client library does not support the extended types, you have the option of reverting to POST and adding the request parameter "_method", setting the value to the desired request method. For example:
will delete the user with ID 13123.
[ top ]
The POST (for create) and PUT (for update) request methods are used in the API. These method types require the inclusion of a request body in XML or JSON format. Sample request bodies, usually in both XML and JSON format, are provided for each method described in this documentation. Please note that the request body should not be URL encoded before being sent to the ProntoForms API.
The API supports XML or JSON message payloads for most provisioning requests, and as the format of data returned from API method calls. The media type is specified by appending ".xml" or ".json" to your request. The Accept and Content-Type request headers are ignored.
- XML –
Request to return an XML-formatted list of users
- JSON –
Request to return an JSON-formatted list of users
IMPORTANT: Strict encoding of JSON is enforced. All keys must be placed in quotes.
Please ensure that any special characters sent to the ProntoForms API are properly escaped. For further information, please consult the following URLs:
All date and time formats follow ISO formats, and should be sent in UTC.
Every string passed to and from the API should be UTF-8 encoded. To avoid any errors or errant characters, please ensure your programs and libraries support UTF-8 and be sure any Unicode strings you take as input from a user are converted before sending the data to ProntoForms.
Please refer to the specific API articles for usage samples. Many of the REST API functions can be executed by simplying loading a URL over HTTPS. Where XML or JSON messages are required for an API function, sample messages have been provided. Additionally, samples of the XML or JSON response body messages from the server can be found in each section. In most cases, REST API samples using the CURL command line utility are provided (see below for more information on CURL).
There are a number of excellent tutorials and code sample libraries for using REST APIs freely available on the web. The ProntoForms API is a typical implementation of REST, so much of this content is directly relevant. One of the best free resources, which includes code samples in 7 programming languages, is the following:
Learn REST: A Tutorial
The following site also provides excellent information on REST APIs:
Learn REST: A RESTful Tutorial
When getting started with the ProntoForms REST API, we recommend using a simple command-line tool like CURL to debug and test your work. In the REST API documentation. We have provided examples of curl commands below that you can customize and try out for yourself.
Please note that CURL and its pre-requisites are 3rd party software. It is freely available for a very wide range of operating system platforms. Please visit the CURL website to download a version for your system. Unfortunately, the ProntoForms support team cannot provide assistance with any problems you may have with the installation or operation of CURL on your computer. Before attempting to install CURL, as with any other software, it is recommended that you check the download with an up-to-date virus scanner and ensure that you have a recent backup of your system. Please also note the important points below.
SSL support is required
For security reasons, the ProntoForms REST API is available only through https connections. Depending on your platform, this may require the installation of a software package like OpenSSL. For Windows computers, we have successfully used distributions from this site. Again, this software is not supported by ProntoForms Support, and you should backup your system before installing.
CURL for Windows Library Issues
Some Windows users who are new to CURL experience various dll-related errors when they first try to use it. Often, these dll errors can be resolved by installing the Microsoft Visual C++ Redistributable Package. There are various versions of this package available, depending on your hardware or OS version. Please consult the Microsoft support site, or try a Google search for the package. It is highly recommended that you perform a backup of your system before installing such a package.