---
title: "Check if a blob exists"
method: HEAD
path: "/v2/{teamSlug}/{projectSlug}/{repositoryName}/blobs/{digest}"
tags: ["vcr"]
---

# Check if a blob exists

`HEAD /v2/{teamSlug}/{projectSlug}/{repositoryName}/blobs/{digest}`

HEAD /v2/:teamSlug/:projectSlug/:repositoryName/blobs/:digest Check whether a blob exists. Used by the Docker client before pushing a layer to avoid re-uploading content that already exists.

## Path parameters

- `teamSlug` string, required — Single Docker repository team slug component.
- `projectSlug` string, required — Single Docker repository project slug component.
- `repositoryName` string, required — Single Docker repository name component.
- `digest` string, required — Content-addressable digest (algorithm:hex).

## Response `200`

- unknown

## Other responses

- `400` — One of the provided values in the request query is invalid.
- `401` — The request is not authorized.
- `402` — The account is missing a payment so payment method must be updated
- `403` — You do not have permission to access this resource.
- `404`
- `410`

---

[API](https://skmtc.net/vercel/apis/api.md) · [All operations](https://skmtc.net/vercel/apis/api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/vercel/api/revisions/b4d86a3e3479/schema)