Know the listing field before you publish.
A compact, privacy-bounded benchmark of Shopstr's latest 1,000 public NIP-99 listings. It measures listing supply and metadata quality—not orders, demand, or sales.
Check listing JSON before publishing
Paste one NIP-99 event. The browser checks common interoperability, e-commerce, and accidental-contact-data issues. Nothing is uploaded, saved, fetched, signed, or published.
No listing has been checked.
This is a bounded syntax and metadata check, not a signature check, relay test, platform guarantee, legal review, or sales forecast.
Build a checked catalog without handing over a key
NIP-99 Catalog Builder converts up to 250 quoted CSV rows into draft-first unsigned event JSONL. It blocks the whole export on any row error, detects duplicate identifiers, checks image metadata, and warns about public contact-like values.
Personal · 15,000 sats Team · 75,000 sats Public setup · 100,000 sats
Runs locally with no upload, network request, storage, signer, secret-key field, subscription, or AI call. Delivery is through a buyer-only GitHub repository within one business day after verified payment; only a GitHub username is requested.
The optional setup tier includes the Personal tool plus conversion of one already-public, non-sensitive catalog of up to 25 products into unsigned JSONL and an audit as a public draft pull request within three business days. One correction pass is included. No private access, customer/order data, copywriting, image work, signing, key handling, or publication.
Inside the report
- recency and seller-concentration aggregates;
- currency and category frequency tables;
- missing-field rates for eight NIP-99 / Shopstr fields;
- a ten-minute listing preflight;
- explicit limits against treating listings as sales evidence.
No raw events, seller identifiers, titles, descriptions, images, locations, messages, orders, or buyer data are included.
Delivered by encrypted Nostr message to the ordering key within one business day after verified payment. No name, email, address, GitHub account, source file, payment proof, or other personal information is requested.
This is an informational fixed snapshot, not financial, legal, marketplace, or sales advice. No updates, outcomes, or marketplace-wide completeness are promised. Because the file is delivered digitally, refunds are available before delivery only.
If the free preflight saved you time, optional Lightning tip: softpeanut@stacker.news. No tip is required to use it.
Method references: NIP-99 and Shopstr source.