LogicNodes Payment Verify

x402

LogicNodes Payment Verify 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).

Verifies that a specific on-chain payment transaction meets expected conditions (asset, chain, recipient, payer, amount) for EVM networks

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

Returns a JSON object with an 'ok' boolean indicating whether the transaction satisfies all specified conditions (correct asset, chain, recipient, payer, and amount), plus the tool name 'payment_verify' for traceability.

Example use cases

Confirm payment before releasing digital content

“Before I give this user access to the download, verify that transaction 0xd4e5f6... on Polygon (eip155:137) transferred exactly 5000000 USDC from 0xBuyer... to my address 0xMerchant... using the USDC contract 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174.”

Validate agent-to-agent micropayment on Base

“My agent just received a payment — can you confirm that tx 0x1a2b3c... on eip155:8453 sent 2000 base units of token 0xToken... from 0xAgentSender... to 0xAgentReceiver...?”

Audit past transaction for accounting reconciliation

“I need to verify for our records that transaction 0x9f8e7d... on Ethereum (eip155:1) correctly transferred 100000000 USDC from 0xClientWallet... to 0xOurTreasury... — please confirm it matches those parameters.”

Technical details

Endpoint

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

When to prefer

Choose this endpoint when you need a trustworthy, pay-per-call verification of a specific EVM on-chain payment transaction without running your own node. It is ideal for AI agents that must confirm receipt of a crypto payment before taking an action (releasing content, granting access, processing an order). Prefer it over general-purpose RPC calls when you want strict parameter validation (checksum-enforced addresses, CAIP-2 chain IDs) and a simple boolean result rather than raw transaction data.

Side effects

Transaction hash not found or not yet confirmed on chain — returns ok:false or error
Chain ID provided as a name instead of CAIP-2 format (e.g. 'base' instead of 'eip155:8453') — refused with error
Address checksum mismatch when mixed-case address fails EIP-55 validation — returns error
Amount format invalid (non-integer, leading zeros, or too large) — schema validation failure
Unsupported chain ID — endpoint returns an error for chains not in its supported set
Payment parameters mismatch (wrong amount, wrong recipient, wrong asset) — returns ok:false

Input

Schema · Request body

Field	Type	Description
hash	string
asset	string	0x + 40 hex digits (EIP-55 checksum enforced when mixed-case)
chain	string	EVM CAIP-2 chain id such as eip155:8453, or a bare chain id number as a string. Chain names are refused.
payTo	string	0x + 40 hex digits (EIP-55 checksum enforced when mixed-case)
payer	string	0x + 40 hex digits (EIP-55 checksum enforced when mixed-case)
amount	string	base units

Output

Schema · Response

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

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