picrd-image-hosting（picrd 图像托管）

picrd.com — Free Image Hosting

Upload images to picrd.com and get back permanent, embeddable URLs. No API key required. No account needed. Images are served from a CDN at i.picrd.com.

When to use this skill

• You need to share a screenshot, diagram, or generated image via a public URL.
• You want to embed an image in a GitHub issue, PR, markdown doc, or chat message.
• You need free image hosting with permanent links and no sign-up.
• You are working with file hosting, file sharing, or image hosting tasks.

Supported formats

Rate limits

• 60 uploads per hour per IP address.
• Read/download endpoints are not rate limited.

Upload a single image

Endpoint: POST https://picrd.com/api/upload Content-Type: multipart/form-data

Required field

Optional fields

curl command

curl -s -F "file=@/path/to/image.png" -F "visibility=unlisted" https://picrd.com/api/upload

Example response (HTTP 200)

{
  "image_id": "Ab3xK9xQ2Lm",
  "page_url": "https://picrd.com/Ab3xK9xQ2Lm",
  "image_url": "https://i.picrd.com/images/Ab3xK9xQ2Lm.png",
  "delete_url": "https://picrd.com/delete/<token>",
  "expires_at": null
}

What to do with the response

1. Use image_url to embed the image in markdown: ![description](image_url)
2. Use page_url to link to the image's landing page.
3. Save delete_url somewhere safe — it is a single-use secret URL and cannot be retrieved later.

Create an album

Group multiple images into an album.

Endpoint: POST https://picrd.com/api/albums

curl -s -X POST https://picrd.com/api/albums

Example response (HTTP 200)

{
  "album_id": "J82Lm9Qp2X1",
  "album_url": "https://picrd.com/a/J82Lm9Qp2X1"
}

Then pass the album_id in subsequent upload requests:

curl -s -F "file=@/path/to/image.png" -F "album_id=J82Lm9Qp2X1" https://picrd.com/api/upload

List album images

Endpoint: GET https://picrd.com/api/albums/<album_id>

curl -s https://picrd.com/api/albums/J82Lm9Qp2X1

Example response (HTTP 200)

{
  "album_id": "J82Lm9Qp2X1",
  "images": [
    {
      "image_id": "Ab3xK9xQ2Lm",
      "page_url": "https://picrd.com/Ab3xK9xQ2Lm",
      "image_url": "https://i.picrd.com/images/Ab3xK9xQ2Lm.png"
    }
  ]
}

Error handling

If the upload fails with a 400 error due to file size, try compressing or resizing the image first:

# macOS — resize to max 1920px wide using sips
sips --resampleWidth 1920 /path/to/image.png --out /path/to/resized.png

# Linux — resize using ImageMagick
convert /path/to/image.png -resize 1920x /path/to/resized.png

Then retry the upload with the resized file.

Workflow: screenshot → upload → embed

A common end-to-end workflow:

1. Capture a screenshot (using whatever tool is available).
2. Upload it:

   curl -s -F "file=@screenshot.png" -F "visibility=unlisted" https://picrd.com/api/upload

1. Parse the JSON response to extract image_url.
2. Embed in markdown:

   ![Screenshot](https://i.picrd.com/images/Ab3xK9xQ2Lm.png)

1. Store the delete_url if the image may need to be removed later.

Important notes

• Images uploaded as unlisted are not listed publicly but are accessible if someone has the URL.
• The delete_url is a one-time secret. Store it immediately — it cannot be recovered.
• Image URLs at i.picrd.com are permanent and served with long cache headers.
• This service is free with no account required — do not upload sensitive or private data.