LogicNodes EVM Balance

x402

LogicNodes EVM Balance is a paid API for AI agents from logicnodes.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Returns native and ERC-20 token balances for a given address on any EVM chain at a specified block

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.

Output

A JSON object with ok: true and the tool name, plus balance data for each requested asset (native and/or token contract addresses) at the requested block. Each balance is read consistently at the same block, ensuring a coherent snapshot.

Example use cases

DeFi portfolio balance check

“What's the current ETH balance and USDC balance for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet (eip155:1)?”

Pre-transaction balance verification

“Before I execute this swap, confirm that 0xAbCd1234abcd1234abcd1234abcd1234abcd1234 has enough WETH on Arbitrum (eip155:42161) — check the safe block so I know the balance is settled.”

Historical balance audit at specific block

“What was the native MATIC balance and USDT token balance for address 0x1234567890abcdef1234567890abcdef12345678 on Polygon (eip155:137) at block 55000000?”

Technical details

Endpoint

POSThttps://logicnodes.io/paid/v1/tools/evm_balance?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a deterministic, block-consistent balance for one or more assets on any supported EVM chain. Ideal for agents that need exact on-chain data without hallucination risk, need multi-asset balances in a single call, or need a historical snapshot at a specific block. Prefer over generic RPC calls when you want a structured, agent-friendly JSON response with built-in payment via USDC x402.

Side effects

Invalid or non-checksum address returns an error (EIP-55 checksum enforced for mixed-case input)
Chain name strings (e.g. 'ethereum') are refused — must use CAIP-2 or bare numeric chain ID
More than 20 assets in a single request exceeds maxItems limit
Unknown or unsupported chain ID returns an error
Invalid block tag (anything other than 'latest', 'safe', 'finalized', or a decimal number) is rejected
Payment failure via x402 protocol results in 402 response before query is processed

Input

Schema · Request body

Field	Type	Description
block	string	"latest" (default), "safe", "finalized", or a decimal block number. Every value in the answer is read at this one block
chain	string	EVM CAIP-2 chain id such as eip155:8453, or a bare chain id number as a string. Chain names are refused.
assets	array	"native" and/or token contract addresses; default ["native"]
address	string	0x + 40 hex digits (EIP-55 checksum enforced when mixed-case)

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "tool": "evm_balance"
  }
}

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