Back to Browse
EVM Chain Balance Lookup (x402, Hub Europe Germany)
x402
EVM Chain Balance Lookup (x402, Hub Europe Germany) is a paid API for AI agents from rubycom.ccwu.cc:8443, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-27).
Fetches the native ETH balance, nonce, and block info for a given EVM address on Base or Ethereum, paid per-call via x402/USDC.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from Hub Europe (Germany). USDC on Base via x402. No account or API key.
Output
Returns a JSON object with the queried wallet address, the chain name, the current block number, the address nonce, native ETH balance in both ETH-unit string and raw wei integer. Useful for confirming holdings, gas availability, or transaction count on Base or Ethereum mainnet.
Example use cases
DeFi bot pre-flight balance check
“Before executing a trade, check whether 0xAbc123...def has enough native ETH on Base to cover gas — look up its balance and nonce right now.”
Wallet funding verification
“I just sent ETH to 0x1234567890abcdef1234567890abcdef12345678 on Ethereum — can you confirm the balance updated and what block it's at?”
Portfolio dashboard enrichment
“For each of these Base wallet addresses, look up the current ETH balance and nonce so I can populate my dashboard: 0xAAA...111 and 0xBBB...222.”
Technical details
Endpoint
GEThttps://rubycom.ccwu.cc:8443/v1/chain/balance?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need a lightweight, no-account, pay-per-call native ETH balance and nonce check on Base or Ethereum without setting up API keys with Alchemy, Infura, or similar providers. Ideal for autonomous agents that need sporadic on-chain balance lookups billed in micro-USDC via x402.
Side effects
- Invalid or malformed 0x address returns an error or empty result
- Unsupported chain value (anything other than 'base' or 'ethereum') may return an error
- Node connectivity issues at the Germany hub may cause timeouts
- Payment failure via x402 (insufficient USDC) blocks the request
- Address with no on-chain activity may return zero balance and nonce 0 (not an error)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"block": 36000000,
"chain": "base",
"nonce": 5,
"address": "0x...",
"balance_eth": "0.0123",
"balance_wei": "12300000000000000"
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"