API reference, NFTs
NFT transfers stream
The transfers of a collection, of a wallet, or both, as each block is indexed (mints and burns included).
- Not on HyperCore: a channel of Elysium and HyperEVM only
WebSocket channel elysium.nfts.transfers on wss://api.femtos.xyz/v1/ws | WebSocket channel hyperevm.nfts.transfers on wss://api.femtos.xyz/v1/ws
Parameters
| Param | In | Example or values | Meaning |
|---|---|---|---|
collection | filter | <collection> | Collection contract (0x…) |
owner | filter | (optional) | Sender or recipient: 0x address or a named wallet's handle |
Subscribe
Elysium
{"op":"subscribe","channel":"elysium.nfts.transfers","filter":{"collection":"<collection>"}}HyperEVM
{"op":"subscribe","channel":"hyperevm.nfts.transfers","filter":{"collection":"<collection>"}}Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.
Response fields
| Field | Type | Meaning |
|---|---|---|
snapshot: true | NftTransfer[] | the last 50 transfers matching (mints and burns included), oldest first; no filter: every collection of the layer |
data | NftTransfer | one transfer (the GET /v1/nfts/transfers row), pushed when the indexer commits its block; with `"batch":"block"`, the block's transfers in one message: {block, t, tx, logIndex, batchIndex, collection, standard, kind, tokenId, amount, from, to, …} |
Related: NFTs
- Active NFT collections GET /v1/nfts/collections Elysium, HyperEVM
Collections with the most transfers over the last 1 h or 24 h. - NFT collection GET /v1/nfts/collections/{address} Elysium, HyperEVM
Metadata, tokens seen and 24 h activity of one collection. - Collection tokens GET /v1/nfts/tokens Elysium, HyperEVM
Tokens of a collection by id, with their owner and metadata URI. - NFTs of a wallet GET /v1/nfts/owned Elysium, HyperEVM
ERC-721 tokens owned and ERC-1155 balances of one address. - NFT transfers GET /v1/nfts/transfers Elysium, HyperEVM
Transfers of a collection or one token, newest first. While HyperEVM syncs: the last 24 h or 7 d of indexed blocks.
More
- This page as Markdown
- The whole API reference
- What Elysium serves
- What HyperEVM serves
- The whole API in one Markdown file
- OpenAPI 3.1 document
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