NumiAgent features

Turn the photo backlog into a catalog

Get the tray out of your camera roll. Import a batch from your phone or computer, name it so you can find it later, and see which images are ready for review. Keep compatible originals up to 6 MB or let the browser resize supported formats. You can pause and pick up the batch later.

Get unstuck on a mystery coin or banknote

An unfamiliar portrait or worn legend is easier to research with a few candidates. Opt in to AI analysis and review suggested attributions, confidence scores, and crops. Pair front and back photos, correct the record, or catalog the piece by hand.

Build and search a private catalog

Save coins and banknotes in named collection folders. Record issuer, denomination, date, grade, references, notes, measurements, inscriptions, and type-specific details. Find pieces with text search and filters, inspect potential duplicates that share a reference, and see collection and import counts on the overview.

Edit selected fields across up to 50 specimens at once. Look up a Roman coin type in OCRE and attach its source link. Export a standard or insurance inventory CSV, download account data as JSON, or transfer a supported NumisGraph portfolio export.

Find out what comparable pieces sold for

Give every estimate a trail you can follow. Enter comparables or import verified sale records with original lot links. Look up a dated ECB reference rate when sales use different currencies. When enough comparable records support a range, you’ll see it in the specimen’s valuation history. When evidence is thin, the catalog says so.

See which pieces your set still needs

Before you go looking for another piece, see what you already have. Start from a sourced Roman emperor or Canadian banknote checklist, or ask for a draft of your own rules. Review the suggestions, then see what matches, which records need references, and which gaps to research first.

Search auctions and save watches

Keep a set of searches for pieces you’re looking for and revisit them from Marketplace. When an auction source is configured, results show their source and verification status. Saved watches can send alerts for verified active lots through an approved feed. Live auction coverage is currently unavailable.

Connect your own software

Create a revocable REST API key for scripts, or approve an OAuth connection for a compatible MCP client. Both use read-only permissions for your account. Use them to query your catalog, check themes, or pull valuation evidence for research.

Control your account and data

Sign in with an email link. Manage active sessions, check your usage, export records, or request deletion from Settings. Uploaded photographs and catalog records stay private, and you can revoke API keys and MCP connections in Developer.