RUNELAB / DOCUMENTATION
Token Metadata
Create the metadata URI used by the launch transaction.
Artwork requirements#
| Property | Accepted value |
|---|---|
| Formats | PNG, JPEG, WebP |
| Maximum size | 4 MB |
| Preview | A square, cropped thumbnail in the Create preview |
Artwork is optional. Selecting a file updates the local preview immediately; replacing or removing it updates that preview without changing the underlying launch transaction rules.
Metadata JSON#
The metadata service stores the image, builds the JSON document, and uploads that document to IPFS through the configured storage service. The resulting URI is used during launch and later checked during verification.
- Name, symbol, and description reflect the validated form values.
- Website, Twitter, and Telegram must use HTTP or HTTPS URLs when provided.
- URLs containing embedded usernames or passwords are rejected.