TokenSee is invisible infrastructure for blockchain data. Decode transactions, fetch portfolios, and stream activity — without touching a node or writing ABI parsers.
Three endpoints. Infinite context.
POST /v1/tx/decodeTurn any tx hash into a human-readable summary — type, assets moved, USD value, protocol, gas cost.
GET /v1/account/:addr/portfolioFull token holdings across ETH + BSC, with real-time prices and per-chain USD totals.
GET /v1/account/:addr/activityPaginated semantic transaction history — every action decoded and sorted by time.
Live Demo
Paste a tx hash from Etherscan or BscScan
For Developers
No ABIs to manage. No multicall boilerplate. No price feed subscriptions. We handle chain complexity so your app just gets clean, typed JSON.
const res = await fetch(
'https://api.tokensee.com/v1/tx/decode',
{
method: 'POST',
headers: {
'Content-Type': 'application/json',
'X-Api-Key': process.env.TOKENSEE_KEY,
},
body: JSON.stringify({
hash: '0x3ca2...329e',
chain: 'ethereum',
}),
}
);
const { data } = await res.json();
// data.summary →
// "Swapped 0.5 ETH for 1,482 USDC
// via Uniswap · $1,482 · fee $2.40"