---
title: "Login"
method: GET
path: "/v0/oauth/login"
tags: ["oauth"]
---

# Login

`GET /v0/oauth/login`

## Request

- Base URL: `https://api.databento.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.databento.com/v0/oauth/login`
- Auth: none declared

## Query parameters

- `login_challenge` string, required
- `retry` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-30** `cb32228622ed`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/databento/apis/databento-openapi-specification/changes/v0/oauth/login/get.md)

---

[API](https://skmtc.dev/databento/apis/databento-openapi-specification.md) - [All operations](https://skmtc.dev/databento/apis/databento-openapi-specification/llms.txt) - [OpenAPI document](https://skmtc.dev/databento/apis/databento-openapi-specification/revisions/9cc41e22eead?raw)