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HALOWERK kettenwerk Wallet Balances
x402
HALOWERK kettenwerk Wallet Balances is a paid API for AI agents from kette.netzhandwerker.de, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).
Retrieves token balances for a given wallet address across multiple EVM chains, grouped by asset or chain.
Price / call$0.006
Success—
StatusUnknown
How this service works
HALOWERK kettenwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
Returns token balances for the specified wallet address, organized by both asset and chain. The primary grouping dimension (asset or chain) is specified by group_by, but both dimensions are always included. Each entry typically shows token symbol, amount, and chain context.
Example use cases
Portfolio snapshot across L2s
“Can you pull up all the token balances for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 across Ethereum, Base, Arbitrum, and Optimism, grouped by asset so I can see my total holdings per token?”
DeFi treasury audit by chain
“I need to audit our DAO treasury at 0xAbCd1234abcd1234abcd1234abcd1234abcd1234 — fetch its balances on Base and Arbitrum and group them by chain so I can see what we hold on each network.”
Automated wallet monitoring alert
“Check the current balances on Ethereum and Optimism for wallet 0x1234567890abcdef1234567890abcdef12345678, grouped by asset, so I can see if any token has dropped below a threshold.”
Technical details
Endpoint
POSThttps://kette.netzhandwerker.de/wallet/balancesWhen to prefer
Choose this endpoint when you need to aggregate EVM wallet token balances across Ethereum mainnet and major L2s (Base, Arbitrum, Optimism) in a single call with flexible grouping. It is well-suited for portfolio snapshots, treasury audits, and automated balance checks where multi-chain coverage is needed without building per-chain RPC integrations yourself. It is a paid x402 endpoint, making it appropriate for production agent workflows that can handle micropayments in USDC on Base.
Side effects
- Invalid wallet address format (not 0x + 40 hex chars) returns validation error
- More than 4 chains specified exceeds maxItems limit
- Unsupported or misspelled chain names may return empty results or errors
- Payment failure (insufficient USDC on Base Mainnet) blocks the request via x402
- Network timeout if queried chains are slow to respond
- Wallet with zero activity may return empty balance lists
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chains | array | Chains to query. Default: ethereum, base, arbitrum, optimism. |
| wallet | string | Wallet address, 0x followed by 40 hex characters. |
| group_by | string | Which grouping to put first. Both are always returned. |
Tags
x402
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