---
title: "Set Base URI"
method: PUT
path: "/v1-alpha1/minting/collections/{collectionId}/base-uri"
tags: ["NFT Collections"]
---

# Set Base URI

`PUT /v1-alpha1/minting/collections/{collectionId}/base-uri`

Update the Base URI of a collection. Setting the baseURI enables
excluding the metadata param when minting. Tokens minted without the metadata
param will have a tokenURI of: 

`{BASE_URI}/{TOKEN_ID}`

This API is currently only supported on EVM Chains.

**API scope required**: `collections.update`

## Path parameters

- `collectionId` string, required

## Request body

- object
  - `uri` string — The new Base URI

## Response `204`

No-content success response indicating that the request is being processed

## Other responses

- `400` — Invalid arguments, please make sure you're following the api specification.
- `403` — Forbidden error, please ensure the credentials are correct.
- `404` — Not found error.
- `409` — Not found error.
- `503` — Please try again in a few minutes. If the issue still persists, contact Crossmint support.

---

[API](https://skmtc.net/crossmint/apis/onramp.md) · [All operations](https://skmtc.net/crossmint/apis/onramp/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/crossmint/onramp/revisions/e2143d192130/schema)