nbx4 EVM Mechanism Evidence

nbx4.dev · 2 paid endpoints · listed 2026-10-27

Preliminary, limited EVM mechanism evidence from a block-pinned snapshot: matched source syntax, proxy and token state, and optional V2 pool observations. Unknowns remain unknown; not a security audit or sellability verdict.

livelast check 7 days ago

100%valid x402 answers, 72 h

$0.01USDC received on Base, 7 days

1distinct payers, 7 days

52.0score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
GET	nbx4.dev/v1/report Analyze a Base Mainnet token contract: block-pinned owner(), ERC-1967 proxy slots, ERC-20 metadata, code hash, best-effort source match and prior-snapshot compa	$0.01	Base
GET	nbx4.dev/v3/report Preliminary, limited EVM mechanism evidence from a block-pinned snapshot: matched source syntax, proxy and token state, and optional V2 pool observations. Unkno	$0.01	Base

Latest checks

When	Endpoint	HTTP	ms	Result
7 days ago	nbx4.dev/v1/report	402	390	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-11-01		1	$0.01

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/nbx4.dev"><img src="https://logicnodes.io/observatory/badge/nbx4.dev.svg" alt="x402 status"></a>

Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/nbx4.dev