---
title: "Create Session"
method: POST
path: "/v1/connections/onboarding/sessions"
tags: ["public_api", "external", "connections-onboarding"]
---

# Create Session

`POST /v1/connections/onboarding/sessions`

## Request

- Base URL: `https://api.hydracept.com`
- URL: `https://api.hydracept.com/v1/connections/onboarding/sessions`
- Auth: HTTP bearer

## Request body

- OnboardingSessionCreate
  - `capabilities` string[], required
  - `projectId` string, nullable
  - `environment` string
  - `accountClass` string

## Response `200`

Successful Response

- object

## Other responses

- `401`: Structured public error envelope (`code`, `message`, `requestId`, …)
- `403`: Structured public error envelope (`code`, `message`, `requestId`, …)
- `422`: Validation failure: public envelope plus Pydantic `detail` / `validationErrors`
- `429`: Structured public error envelope (`code`, `message`, `requestId`, …)
- `500`: Structured public error envelope (`code`, `message`, `requestId`, …)
- `502`: Structured public error envelope (`code`, `message`, `requestId`, …)
- `503`: Structured public error envelope (`code`, `message`, `requestId`, …)

---

[API](https://skmtc.dev/hydracept/apis/hydracept-public-api.md) · [All operations](https://skmtc.dev/hydracept/apis/hydracept-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/hydracept/apis/hydracept-public-api/revisions/2d41a8069ede?raw)