For creators
Make your tool ready to publish.
Publishers need a stable embed, a real preview and rights they can understand before they copy your asset. This guide shows the exact format that passes the marketplace checks.
The four-resource rule
One asset, four public URLs.
- Canonical pageHuman-readable page that explains the asset.
- Embed routeDedicated page that renders inside a publisher iframe.
- Preview imageDirect PNG or JPG showing the actual result.
- Rights evidencePublic page confirming reuse and attribution terms.
Choose a useful, self-contained asset
Submit a chart, calculator, table, dataset, benchmark or widget that solves one clear publisher problem. Keep the title specific and the description useful without requiring a sales call or a login.
- Title: 3–160 characters.
- Description: 20–2,000 characters.
- Use a real source or brand name, not SEO keywords.
- Do not submit raw HTML, uploaded JavaScript or private URLs.
Build a stable /embed/ route
Create a dedicated HTTPS route such ashttps://your-domain.example/embed/my-calculator. It must render the tool directly, without a login, cookie banner, consent wall or navigation detour.
<iframe
src="https://your-domain.example/embed/my-calculator"
title="My calculator"
loading="lazy"
referrerpolicy="strict-origin-when-cross-origin"
sandbox="allow-scripts"
></iframe>The marketplace adds a responsive width and a 720 px starting height. Your embed page should still handle content that grows beyond that height gracefully.
Publish a real preview image
On the submission form, upload a PNG, JPG or WebP (maximum 2 MB). The marketplace stores it securely and attaches the public preview URL automatically. You can also provide a direct HTTPS image URL hosted on your own domain.
- PNG or JPG is preferred; 1200 × 675 px works well.
- The image must show the calculator, chart or table with real data.
- For external URLs, the URL must return an image directly, without a login.
Write rights evidence a publisher can verify
Link to a stable public page that covers this exact asset and its preview image. State embedding, commercial editorial use, preview display, modification, attribution and any exclusions separately. Only claim a standard license when it actually applies.
The attribution terms field is the short credit line shown to publishers, for exampleCredit Your Brand — commercial use and embedding permitted with attribution. It describes the required credit; your public rights page remains the evidence.
Embedding and commercial editorial use are allowed for this asset.
The preview image may be displayed in the marketplace.
Modification is [allowed/not allowed]. Attribution: [brand] — [terms].
This permission does not grant raw-data redistribution rights.A rights page can be your terms page, an asset-specific license notice or a signed owner-controlled policy. It cannot be a private document or a vague “fair use” claim.
Run the checks and publish
Sign in and paste the four URLs plus your metadata and declarations. The marketplace checks URL safety, host relationships, the preview, attribution, declared reuse rights and sandbox confirmation. If every check passes, the asset is published immediately. Otherwise, correct the reported fields and submit again.
The marketplace is a commercial service and may earn revenue through fees, subscriptions, advertising or similar models. Your submission may be listed and promoted in that commercial context, but ownership of your tool, source code and data remains with you.