---
title: "Validate flow JSON definition"
method: POST
path: "/v2/Flows/Validate"
tags: ["StudioV2FlowValidate"]
---

# Validate flow JSON definition

`POST /v2/Flows/Validate`

Validate flow JSON definition

## Response `200`

OK

- StudioV2FlowValidate
  - `valid` boolean, nullable — Boolean if the flow definition is valid.

## Changes

- **2025-07-03** (v2) `88ca5d3cb0bb` — 1 info
  - the `Definition` request property type/format was generalized from `object`/`` to ``/``
- **2025-03-11** (v2) `d6e7767d27a5` — 1 breaking
  - the `Definition` request property type/format changed from ``/`` to `object`/``
- **2023-08-10** (v2) `531843bd1ac8` — 1 info
  - api tag `StudioV2FlowValidate` added

[Change history](https://skmtc.dev/twilio/apis/twilio-studio/changes/v2/Flows/Validate/post.md)

---

[API](https://skmtc.dev/twilio/apis/twilio-studio.md) · [All operations](https://skmtc.dev/twilio/apis/twilio-studio/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/twilio/twilio-studio/revisions/c384dd0ef331/schema)