NFT metadata by token id on 16 EVM chains
NFT metadata by token id on 16 EVM chains: token URI from the contract, then name, image, description and traits resolved from IPFS, Arweave or inline data.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
507 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/chain/nft-metadata
| Category | Image and media |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.01 | 507 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chain": "ethereum",
"collection": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
"token_id": "1"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"chain": {
"description": "chain name (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, mantle, blast, sonic, celo, berachain, unichain) or chain id",
"type": "string"
},
"collection": {
"description": "the ERC-721 or ERC-1155 contract",
"type": "string"
},
"token_id": {
"description": "the token id (decimal or 0x hex)",
"type": "string"
}
},
"required": [
"chain",
"collection",
"token_id"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"animation_url": {
"description": "animation or media URL",
"type": [
"string",
"null"
]
},
"attributes": {
"description": "traits as trait_type and value pairs, up to 50",
"type": [
"array",
"null"
]
},
"chain": {
"description": "the chain name that was queried",
"type": "string"
},
"chain_id": {
"description": "EIP-155 chain id of that network",
"type": "number"
},
"collection": {
"description": "the NFT contract",
"type": "string"
},
"collection_name": {
"description": "contract name()",
"type": [
"string",
"null"
]
},
"collection_symbol": {
"description": "contract symbol()",
"type": [
"string",
"null"
]
},
"description": {
"description": "description field, truncated to 1,000 characters",
"type": [
"string",
"null"
]
},
"external_url": {
"description": "external page for the token",
"type": [
"string",
"null"
]
},
"fetch_note": {
"description": "why the document was not fetched, if it was not",
"type": [
"string",
"null"
]
},
"image": {
"description": "image URL with ipfs links rewritten to a gateway",
"type": [
"string",
"null"
]
},
"metadata_fetched": {
"description": "true when the metadata document was read",
"type": "boolean"
},
"name": {
"description": "name field of the metadata document",
"type": [
"string",
"null"
]
},
"note": {
"description": "plain-language reading of the result",
"type": "string"
},
"source": {
"description": "where the data was read from",
"type": "string"
},
"standard": {
"description": "ERC-721 or ERC-1155",
"type": "string"
},
"token_id": {
"description": "the token id queried, decimal",
"type": "string"
},
"token_uri": {
"description": "URI returned by the contract",
"type": "string"
},
"uri_scheme": {
"description": "scheme of that URI (ipfs, ar, data, https)",
"type": "string"
}
},
"required": [
"chain",
"chain_id",
"collection",
"token_id",
"token_uri",
"uri_scheme",
"metadata_fetched",
"note",
"source"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}