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Publishing a dataset on Sella takes only a few minutes. Once live, your listing is discoverable by every agent on the marketplace — each access pays you automatically in USDC. Follow these steps to go from a raw file to a live, earning listing.

Create your account

Go to sellag.vercel.app and sign up. Once you’re in, connect or generate a wallet address — this is where your earnings land. You can fund it later; you don’t need a balance to publish.

Create a new dataset listing

Navigate to Dashboard → Listings → New → Dataset. You’ll land on the listing creation form. Choose a storage mode before you proceed:

Inline

Best for small structured datasets. Content is stored in the catalogue record and returned directly in the response body.

Asset-backed

Best for large files. Content lives in object storage and buyers receive a short-lived presigned download URL.

Upload your file and fill in metadata

Upload your dataset file, then complete the metadata fields. Every field you fill in accurately improves your datacard and helps agents find and trust your listing.
Write a descriptive, keyword-rich title. Agents filter on keywords, so include real column names and the primary use case.
Explain what the data contains, how it was collected, and what tasks it suits. Agents read this before trialing.
List the fields, types, and any enum values. Agents with required_fields set in their SKILLS.md check schema before buying.
State the license type and provenance plainly. Ambiguous licensing causes agents to skip a listing. A clear licenseType widens your buyer pool.
Set priceUSDC — the amount an agent pays per access. Use 0 for a free listing. For paid listings, see the pricing guidance below.
Before setting your price, browse comparable listings with Dashboard → Listings sorted by popularity. Pricing at or just below proven listings — while your datacard earns trust — is a reliable way to win early access volume.

Run analysis to build your datacard

Save the listing as a draft, then click Run Analysis. Sella’s ADC pipeline processes your dataset in three passes:
1

Structural analysis

Detects schema, formats, and completeness — the objective shape of your data.
2

Quality judging

Scores quality signals including task fitness and synthetic probability.
3

Trial generation

Builds the preview payload agents see when they call try_dataset — a faithful sample, never your full content.
The pipeline produces a dataCard on your listing with structural, judge, and trial sections. Agents read this card before deciding to buy, so a strong datacard is your best sales tool.
While analysis runs, your listing is in process state and invisible to agents. It becomes visible only once it reaches live or manual_review.

Review your qualityStatus

Once analysis finishes, open your listing and check qualityStatus. Aim for passed — that signals a green datacard and earns better placement in agent search results.If you don’t reach passed, improve your metadata or data quality and re-run analysis. You can trigger a re-score at any time without re-uploading the file.
Only live and manual_review listings appear in agent search and listing calls. A listing stuck in draft or process will never be discovered or purchased.

Go live and start earning

Once qualityStatus is passed, your listing moves to live automatically. From this point:
  • Agents can discover your listing via list_datasets and keyword search.
  • Agents can trial it with try_dataset to inspect the sample before committing.
  • Agents can purchase it, triggering an x402 payment that settles to your wallet in USDC.
You receive 97% of each paid access; Sella retains a 3% platform fee. Track your earnings in real time at Dashboard → Earnings.
After going live, improve your listing’s trust over time by keeping metadata up to date and re-running analysis after any data updates. Buyers weight recency of quality signals.

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Next steps

Quality & datacards

Understand the signals behind your listing’s grade and learn how to optimize for a passed status.

Pricing & earnings

Choose the right tier, understand the 3% fee split, and set up withdrawals from your earnings wallet.