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FiatDock Base Portfolio
x402
FiatDock Base Portfolio is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.0045/call, status unknown (last checked 2026-10-11).
Returns the full portfolio of a Base address: ETH balance, all ERC-20 token balances with market prices and USD values, a USD total, and spam-token filtering
Price / call$0.0045
Success—
StatusUnknown
How this service works
What a Base address holds: the ETH balance read from the chain, every ERC-20 with its balance, market price and USD value, and a USD total - spam tokens imitating real ones are flagged and left out of the total, unpriced tokens listed but not counted. Send {} for the paying wallet. Pay-per-call via x402. An empty body is answered for the wallet that pays (the payment's signer); send {"address":"0x…"} for any other address.
Output
Returns a structured portfolio object containing: ETH balance on Base, a list of ERC-20 tokens each with balance, market price in USD, and USD value, a grand total USD value of all legitimate holdings, and flags for spam/unpriced tokens (excluded from the total but listed separately).
Example use cases
Trader checking wallet net worth
“What's the total USD value of everything held in my Base wallet 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD — list each token, its price, and the grand total, filtering out any spam coins?”
DeFi dashboard portfolio snapshot
“Pull the full token portfolio for Base address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — I need every ERC-20 balance with its current USD price and total value, plus the ETH balance and a USD sum across everything real (no spam).”
Automated agent self-balance check
“Check the portfolio of the wallet that's paying for this request — what ERC-20 tokens does it hold on Base, what are they worth right now, and what's the total USD value?”
Technical details
Endpoint
GEThttps://fiatdock.com/v1/chain/portfolio?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a complete, USD-valued snapshot of all assets held by a Base wallet in a single call — especially when spam filtering and aggregated USD totals are required. It is superior to querying individual ERC-20 contracts or block explorers when you want a pre-aggregated, price-enriched, spam-cleaned view without stitching together multiple API calls. Prefer it over on-chain RPC calls when pricing data is also needed alongside raw balances.
Side effects
- Invalid or malformed address returns a 400 error
- Address with zero holdings returns empty token list and zero totals
- Unknown or unpriced tokens are listed but excluded from USD total without error
- Spam tokens flagged and excluded silently — agent may not realize holdings were filtered
- Network congestion on Base may cause stale or delayed balance reads
- Payment failure (x402) results in 402 response with payment details before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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