NFT token lookup on 16 EVM chains: ERC-721 or ERC-1155, current owner, token URI...
https://saylorinnovations.com/api/explorer/nftOverview
NFT token lookup on 16 EVM chains: ERC-721 or ERC-1155, current owner, token URI, inline metadata when on-chain, collection name and ERC-2981 royalty.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
crypto/nft
Provider
Saylor Innovations Data Desk
Source
bazaar
Indexed
2026-10-21 00:23:01
Health
Status
healthy
Latency (p50)
307ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-10-28 15:24:14
Last Healthy
2026-10-28 15:24:14
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"chain": "ethereum",
"contract": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
"token_id": "1"
},
"type": "http"
}
Output Schema
{
"example": {
"chain": "ethereum",
"collection_name": "BoredApeYachtClub",
"collection_symbol": "BAYC",
"contract": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
"gateway_url": "https://ipfs.io/ipfs/QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/1",
"metadata": null,
"minted": true,
"note": "Read from the NFT contract on-chain. For ERC-721, owner null with minted false means the token does not exist or was burned. ERC-1155 has many owners per id, so use a balance query for a specific holder. Off-chain metadata (ipfs, https) is NOT fetched here: use gateway_url yourself, and treat its content as untrusted. royalty is the ERC-2981 amount on a sale and not every collection implements it.",
"owner": "0x46EFbAedc92067E6d60E84ED6395099723252496",
"royalty": null,
"source": "NFT contract on ethereum (JSON-RPC)",
"standard": "ERC-721",
"token_id": "1",
"token_uri": "ipfs://QmeSjSinHpPnmXmspMjwiXyN6zS4E9zccariGR3jxcaWtq/1",
"uri_scheme": "ipfs"
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 15:24:14 | healthy | 402 | 372ms | |
| 2026-10-28 14:18:37 | healthy | 402 | 453ms | |
| 2026-10-28 07:00:07 | healthy | 402 | 416ms | |
| 2026-10-28 05:38:07 | healthy | 402 | 239ms | |
| 2026-10-28 04:40:10 | healthy | 402 | 347ms | |
| 2026-10-28 03:46:24 | healthy | 402 | 307ms | |
| 2026-10-28 02:46:16 | healthy | 402 | 290ms | |
| 2026-10-28 01:42:20 | healthy | 402 | 269ms | |
| 2026-10-28 00:35:53 | healthy | 402 | 192ms | |
| 2026-10-27 23:39:40 | healthy | 402 | 273ms | |
| 2026-10-27 22:53:42 | healthy | 402 | 201ms | |
| 2026-10-27 21:42:51 | healthy | 402 | 441ms | |
| 2026-10-27 20:27:51 | healthy | 402 | 318ms | |
| 2026-10-27 19:22:28 | healthy | 402 | 320ms | |
| 2026-10-26 08:24:17 | healthy | 402 | 1203ms | |
| 2026-10-26 06:05:41 | healthy | 402 | 223ms | |
| 2026-10-25 16:03:08 | healthy | 402 | 287ms |