Setup & Installation
Or with the ClawHub CLI, for registry-managed skill folders outside a full OpenClaw workspace:
What This Skill Does
Uploads an image file to img402.dev and returns a public CDN URL. The free tier supports files up to 1MB with 7-day retention and requires no account or API key. A paid tier extends retention to one year with a 5MB limit, using x402 micropayment.
No account, API key, or configuration is needed for the free tier, so an agent can host an image immediately without any setup step.
When to use it
- Sharing a screenshot in a Slack or chat message
- Embedding a generated chart image in a document
- Getting a public URL for an image payload in an API request
- Posting an agent-generated image to a social platform
- Attaching a visual to a bug report or support ticket
Example Workflow
Here's how your AI assistant might use this skill in practice.
User asks: Upload this screenshot and give me a public link
- 1Check the image file size to confirm it is under 1MB
- 2Resize the image using sips or ImageMagick if it exceeds the limit
- 3Send a multipart POST request to https://img402.dev/api/free with the image file
- 4Parse the JSON response and extract the url field
A public CDN URL (e.g. https://i.img402.dev/aBcDeFgHiJ.png) valid for 7 days