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1gateway — Base wallet balances: ETH + many ERC-20s in one call, with nonce and contract flag

https://1gateway.dev/v1/onchain/base/balances

Overview

Use when an agent needs what a Base address holds in one call instead of one RPC call per token. Input: address; optional tokens (up to 20 ERC-20 addresses, comma-separated; default USDC, EURC, USDbC, WETH, cbBTC, cbETH, wstETH). Output: JSON block+time, ETH balance, per-token symbol, decimals, raw and decimal balance, nonce, isContract. Chain state only, no prices. Bad input: 400, not charged. Example: ?address=0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1 Pay per call with USDC on Base via x402 (no signup, no API key); failed calls are never charged. Docs: https://1gateway.dev/agents.md

Protocol x402
Price —
Payment Asset USD Coin
Payment Network eip155:8453
Category crypto/balances
Provider 1gateway
Source bazaar
Indexed 2026-10-12 16:30:00

Health

Status healthy
Latency (p50) 888ms
Uptime (30d) 100.0%
Reliability Score 87/100
Last Checked 2026-10-18 15:27:01
Last Healthy 2026-10-18 15:27:01
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified Known USDC
Facilitator —

Recent Health Checks

Time Status HTTP Latency Error
2026-10-18 15:27:01 healthy 402 1129ms
2026-10-18 01:23:52 healthy 402 388ms
2026-10-17 11:11:30 healthy 402 888ms
2026-10-17 00:52:19 healthy 402 67ms
2026-10-16 08:13:54 healthy 402 491ms
2026-10-15 21:15:34 healthy 402 997ms