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Zerion API - Fungible Asset Detail Lookup
x402
Zerion API - Fungible Asset Detail Lookup is a paid API for AI agents from api.zerion.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-29).
Retrieves detailed on-chain metadata and attributes for a specific fungible token by its Zerion fungible asset ID
Price / call$0.01
Success—
StatusUnknown
How this service works
Interpreted wallet data for more than 40 chains and Solana: portfolios, DeFi positions, PnL, transactions and NFTs. REST for apps, x402 pay-per-call for agents.
Output
Returns a JSON object containing the fungible asset's resource ID, resource type, and a rich attributes object with token metadata as documented at developers.zerion.io, plus a self-link for the resource.
Example use cases
Token metadata enrichment for portfolio app
“I need to enrich my portfolio display with full metadata for the token with Zerion fungible ID 'eth-ethereum' — can you fetch its attributes from Zerion?”
DeFi agent token research
“Look up everything Zerion knows about the fungible asset 'usd-coin-usd-coin' — I want to see its type, ID, and all available attributes before deciding whether to include it in my strategy.”
Cross-chain asset verification
“Fetch the Zerion fungible asset details for 'matic-polygon' so I can verify its on-chain metadata and confirm it's the right token before proceeding.”
Technical details
Endpoint
GEThttps://api.zerion.io/v1/fungibles/%7Bfungible_id%7D?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a known Zerion fungible asset ID and need structured token metadata, attributes, or type information for a specific asset. Prefer this over the contract-address lookup endpoint when you already have the Zerion-native ID. Use the search/list tokens sibling endpoint when you need to discover or search for tokens first.
Side effects
- Invalid or unknown fungible_id returns a 404 not found error
- Missing payment header or insufficient USDC balance returns a 402 Payment Required
- Malformed fungible_id format may return a 400 bad request
- Rate limiting or quota exhaustion returns a 429 error
- Network or upstream chain data unavailability may cause 503 errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"id": "<resource id>",
"type": "<resource type>",
"attributes": {}
},
"links": {
"self": "https://api.zerion.io/v1/..."
}
}
}Tags
x402
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