Making an API Public


In this document, we explain both how you make an API public and the considerations to take into account before doing so.


Managed Client

A managed client is one that Sentry controls, such as our frontend. In this type of client, we control both which endpoints are used and the attributes used by those endpoints.

Partially Managed Client

A partially-managed client is one that we only partially control, since we do not control the version of the client that is running for our users; for example, our Sentry CLI. While we control the endpoints the CLI uses, once the CLI is installed and running in a customer's implementation, we don't control the version of the client a user runs.

External Client

An external client is a client that Sentry does not control; for example, a script written by a customer run in their repository, or an integration written using the Integration Platform. For this type of client, we have no control over the endpoints they choose to use, nor can we require that they immediately update their endpoint.

Private API

A private API is an undocumented API. Sentry can make breaking changes to this type of API, and no one will blink an eye.

Public API

Our public API is documented at

Private Attributes in a Public Endpoint

You can have private attributes within a public endpoint.

As an example: The response has multiple attributes:

  "id": "2",
  "slug": "the-interstellar-jurisdiction"

Let's say we also return a nickname for a team. If what is returned is not documented as a response in our public documentation, that attribute is a private attribute within a public endpoint.

API Versioning

Currently, Sentry's API is v0 and is considered to be in draft phase. While we don't expect our public endpoints to change greatly, keep in mind that our API is still under development.

Making an endpoint public

When you make an endpoint public, you're committing to always returning at least the set of defined attributes when that endpoint is called. As a result, the attribute(s) cannot be removed from an endpoint after they are public. Additionally, the type of the attribute cannot be changed once the attribute is public. The reason the attribute and its type cannot be changed is because both external and managed clients are relying on the public attribute to be returned from that endpoint.

You can add attributes to a public endpoint.

When to make an API public?

Making an API public offers considerable benefits. A public API allows our customers to incorporate Sentry into their workflows. It also gives Sentry more visibility in our customers' organizations ("Woah that's cool data, where'd it come from?"..."Sentry!"). Remember, however, making an API public means that once an endpoint is public, you can only add to it: You cannot make any breaking changes.

As a guide, use these questions:

  1. Is the feature for which you're making the endpoint stable?
  2. Will the API change substantially in the future?
  3. Does the API offer value to customers who are accessing it?

If your answers are Yes, No and Yes, you're in business - make the API public.

How to make an endpoint public?

We use Open API Spec 3 to write our API documentation. You can find that content here: You can find the tests here:

Once you make changes to an endpoint and merge the change into Sentry, a Github Action will update the schema in sentry-api-schema with a build version. To make your changes go live:

  1. Get the latest SHA from sentry-api-schema.
  2. Go to sentry-docs and update the SHA (

Requesting an API to be public

Want an endpoint to be public?

Look at the issues on sentry with the Component: API label. If a request has already been made to make the endpoint public, give it a thumbs up. If not, create a feature request on Sentry and add the Component: API label.

The team responsible for the endpoint will review the stability of the endpoint. If the endpoint will not have breaking changes in future, they can determine whether to make it public.


When should an attribute be required?

An attribute is required if it will always be returned by the API.

What does it mean when a response doesn't have a schema?

Some endpoints have no response schema. This means that while the endpoint is public, the attributes within that endpoint can change at any time. This is a relic from migrating the documentation from our prior approach. Note that, going forward, we recommend new endpoints always provide response schema.

I have a question and it has not been answered.

No problem. Send us an email so we can answer your question.

Can customers use private endpoints?

Yes, if they wish. However, private endpoints can change at any time, without notice. As a result, the customer's code could break.

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