Demo Publish (No Auth)

The demo publish endpoint lets you create a live web page from markdown without signing up or providing an API key. Pages expire after 72 hours.

How it works

1. Send a POST request to /v1/demo/publish with your markdown content
2. Get back a public URL and a claim token
3. The page is live immediately
4. After 72 hours, the page expires and is removed
5. To keep it permanently, claim it with your API key before it expires

Publish a demo page

curl -X POST https://api.unmarkdown.com/v1/demo/publish \
  -H "Content-Type: application/json" \
  -d '{
    "title": "Quick Demo",
    "content": "# Hello World\n\nThis page was published without an account.",
    "template_id": "github"
  }'

const response = await fetch(
  "https://api.unmarkdown.com/v1/demo/publish",
  {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      title: "Quick Demo",
      content: "# Hello World\n\nThis page was published without an account.",
      template_id: "github",
    }),
  }
);

const data = await response.json();
console.log(data.url);         // https://unmarkdown.com/p/abc123
console.log(data.claim_token); // save this to claim the document later

import requests

response = requests.post(
    "https://api.unmarkdown.com/v1/demo/publish",
    json={
        "title": "Quick Demo",
        "content": "# Hello World\n\nThis page was published without an account.",
        "template_id": "github",
    },
)

data = response.json()
print(data["url"])         # https://unmarkdown.com/p/abc123
print(data["claim_token"]) # save this to claim the document later

Response

{
  "url": "https://unmarkdown.com/p/550e8400-e29b-41d4-a716-446655440000",
  "claim_token": "a1b2c3d4-5678-9abc-def0-123456789abc",
  "expires_at": "2026-02-18T12:00:00.000Z",
  "template_id": "github",
  "id": "550e8400-e29b-41d4-a716-446655440000"
}

Use cases

• LLM agents. Give your AI the ability to publish formatted output without managing API keys.
• Quick sharing. Turn markdown into a shareable link with zero setup.
• Try before signing up. Evaluate the rendering quality before creating an account.
• CI/CD previews. Publish preview pages for pull requests that auto-expire.

Limitations

• Pages expire after 72 hours
• No authentication means no editing or management after publish
• Content limited to 100KB per request
• Demo pages are not indexed by search engines
• No custom slugs (URLs use the document ID)

Next steps

To make a demo document permanent, see Claiming Demo Documents.