---
title: "POST /v1/blob/{key}"
method: POST
path: "/v1/blob/{key}"
tags: ["blobs"]
---

# POST /v1/blob/{key}

`POST /v1/blob/{key}`

Store data in blob storage

## Path parameters

- `key` string, required

## Request body

- string, binary — Binary input data

## Response `201`

Default Response

- 'ok'

## Other responses

- `400` — Default Response

## Changes

- **2026-08-05** `4d8b6d2e6db3` — 1 breaking, 2 info
  - the response property `message` became optional for the status `400`
  - api operation id `blobsStore` removed and replaced with `v1blobsStore`
  - removed the `Bad Request` enum value from the `error` response property for the response status `400`
- **2026-04-20** `8f22304950dd` — 1 breaking
  - request body became required
- **2026-03-11** `dc1b3c9e3b2a` — 1 info
  - added the media type `application/json` for the response with the status `201`
- **2026-01-15** `788eacc57f25` — 1 info
  - added the non-success response with the status `400`

[Change history](https://skmtc.dev/val-town/apis/val-town-api/changes/v1/blob/:key/post.md)

---

[API](https://skmtc.dev/val-town/apis/val-town-api.md) · [All operations](https://skmtc.dev/val-town/apis/val-town-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/val-town/val-town-api/revisions/4d8b6d2e6db3/schema)