Documentation

Site confirmation

Main method — the /.well-known/snapca.json file. Fallback — a meta tag in the homepage <head>. Both bind the domain to the mint and are checked with the same strictness.

File (main method)

Place the file at /.well-known/snapca.json with a JSON object:

{
  "claimId": "3f1b7c9e-0f2a-4a1e-9d2f-2b6c1f0a5e77",
  "mint": "YOUR_TOKEN_ADDRESS"
}

The file is publicly available, without auth and without redirects.
Content-Type: application/json.
claimId and mint match the claim.

Meta tag (fallback)

If hosting does not allow placing a file, add the tag to the homepage <head>:

<meta name="snapca-verification" content="v2:eyJ2IjoyLCJjbGFpbV9pZCI6IjAwMDAwMDAwLTAwMDAtNDAwMC04MDAwLTAwMDAwMDAwMDAwMCIsImRvbWFpbiI6InNuYXBjYS5vcmciLCJjaGFpbiI6InNvbGFuYTptYWlubmV0IiwiYXNzZXQiOiJTbmFwQ0ExMTExMTExMTExMTExMTExMTExMTExMTExMTExMTExMTExIiwic2lnbmVyIjoiZWQyNTUxOSIsIm5vbmNlIjoic25hcGNhLWRlbW8tbm9uY2UtMDAwMSIsImlzc3VlZF9hdCI6MTc5MDAwMDAwMCwiZXhwaXJlc19hdCI6MTc5MDA4NjQwMH0:mlJVsYSRA8HyBAc3exQZkPjEV9T6_DEcDq4HaOTXwR_Do-YTEzsC5C4DqeMnhzRqQIaFHeRrqmmtrZm3TLrGeQ">

v2 — format version.
payload — base64url canonical JSON: domain, Solana network, mint, nonce, expiry.
signature — ed25519 signature of the payload by the token creator key.

How to get it

1. Open project verification.
2. Enter the domain and token mint — Snapca creates a claim.
3. Sign the payload in the creator Solana wallet.
4. Copy the file or meta tag from the wizard and publish it on the site.
5. Click “Check publication”, then pay for the registry record.

Requirements

For the meta tag — homepage only /, one tag per domain.
The page or file is publicly available, without auth and without bot challenges.
Domain, Solana network and mint in the proof must match the claim.

Start verification API