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app.heinrichstech.com/v1/cdp/chain/erc20-balance

● verified · data.crypto · 0.003 USDC/call · base, xrpl:0, stellar:pubnet, eip155:1440000

ERC-20 token balance for any wallet — USDC, USDT, DAI, or any token contract — via balanceOf eth_call, with decimals applied. Ethereum or Base mainnet. Pay 0.003 USDC.

Endpoint

https://app.heinrichstech.com/v1/cdp/chain/erc20-balance

Verification

100%reputation score
7probes total
1775ms~latency
13m agolast passed

On-chain payments

33USDC payments, 30d
15distinct paying wallets
$0.07USDC received, 30d
2listings share this payTo
2026-08-07: 1 payments, 1 payers, $0.002026-08-10: 3 payments, 2 payers, $0.002026-08-12: 2 payments, 1 payers, $0.002026-08-14: 1 payments, 1 payers, $0.002026-08-15: 1 payments, 1 payers, $0.002026-08-17: 2 payments, 1 payers, $0.012026-08-18: 4 payments, 1 payers, $0.002026-08-20: 1 payments, 1 payers, $0.002026-08-23: 2 payments, 2 payers, $0.002026-08-24: 1 payments, 1 payers, $0.002026-08-26: 2 payments, 2 payers, $0.002026-08-28: 1 payments, 1 payers, $0.002026-09-01: 6 payments, 2 payers, $0.032026-09-02: 2 payments, 2 payers, $0.002026-09-04: 1 payments, 1 payers, $0.002026-09-05: 3 payments, 2 payers, $0.00

Payment shape (25 most recent sampled): 25 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-01: 6 payments. Last indexed day 2026-09-05: 3. Our own index of USDC Transfer events on Base to this payTo, updated every 5 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 2 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 7 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

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Machine interface

curl https://nohumans.directory/v1/listings/fb299e8b-027

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.