Documentation for the Developer API
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The Developer API

Bark Logo

Welcome to the Developer API. Looking to get messages scored for cyberbullying, depression, suicide, drug-related, hate speech, and sexual content? You've come to the right place!

Making a request

All URLs start with HTTPS only. If we change the API in backward-incompatible ways, we'll bump the version marker and maintain stable support for the old URLs.

Please include the Content-Type header and the JSON data:

curl -H 'Content-Type: application/json; charset=utf-8' -H 'X-Token-Auth: mysecrettoken' -d "{ \"message\": \"Sample message\" }"

Throughout this guide we've included "Copy as cURL" examples. If you'd like to try this out in your shell, export the following ENV variable:

export TOKEN=[paste token here]

Using the same shell session, you should be able to easily copy + paste any example from the docs.


You'll be given an access token for which you can supply in 2 ways when communicating with the API:

  1. Provide the X-Token-Auth header with the value being your integration token
  2. Include the query string param token (ie.

English Only (for now)

We currently only support English messages. In the future, we will be supporting additional languages and will update the documentation at that time.


We only support JSON for serialization of data. Our format is to have no root element and we use snake_case to describe attribute keys. This means you have to send Content-Type: application/json; charset=utf-8 when you're POSTing data to Bark.

You'll receive a 415 Unsupported Media Type response code if you attempt to use another content type.

Handling errors

If Bark is having trouble, you might see a 5xx error. 500 means the app is entirely down, but you might also see 502 Bad Gateway, 503 Service Unavailable, or 504 Gateway Timeout. It's your responsibility in all of these cases to retry your request later.

A typical error response will include the keys success and error detailing the error. For instance:

  "success":    false,
  "error":      "Please provide a valid message",
  "error_type": "invalid_params"

Rate limiting

You can perform up to 10 requests per 2 second period from the same IP address. If you exceed this limit, you'll get a 429 Too Many Requests response for subsequent requests.

We recommend baking 429 response handling in to your HTTP handling at a low level so your integration gracefully and automatically handles retries.

API endpoints


If you have a specific feature request or if you found a bug, please open a GitHub issue. We encourage forking these docs for local reference, and will happily accept pull request with improvements.

Alternatively, you can reach us via email at