NBX4 EVM Mechanism Evidence

Block-pinned EVM contract facts across 16 configured chains: code, proxy, token state and evidence for nine risk mechanisms. Unknowns remain unknown. Not an audit or sellability test.

1 of 6 routes settlement-verified · $0.01 USDC/request · 6 endpoints · Data · base network · x402 protocol

Verified routes

• GET /v3/report · $0.01 · 2026-10-24 · receipt

Other routes are unverified.

Networks: Base (settlement-verified)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

Listing facts

Provider

Kamil Kot

Hosted at

nbx4.dev

Category

Data

Price

$0.01 USDC per request

Endpoints

6

Payment networks

Base

Settlement-verified

1 route, last checked 2026-10-24

Listed on PayAPI Market

2026-10-24

Try NBX4 EVM Mechanism Evidence

Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.

curl -i "https://nbx4.dev/v3/report"

About this API

NBX4 EVM Mechanism Evidence is listed in the Data category with pricing at $0.01 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-10-24. View receipt on Basescan.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 6 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.

Questions about this API

What does NBX4 EVM Mechanism Evidence do?

Block-pinned EVM contract facts across 16 configured chains: code, proxy, token state and evidence for nine risk mechanisms. Unknowns remain unknown. Not an audit or sellability test. It is provided by Kamil Kot.

How much does NBX4 EVM Mechanism Evidence cost?

NBX4 EVM Mechanism Evidence is priced at $0.01 USDC per request, paid per call with no subscription. PayAPI Market paid 0.01 USDC for one call to /v3/report when it verified the listing. The exact amount for each call is in the HTTP 402 response before any money moves.

Do I need an API key or account to use NBX4 EVM Mechanism Evidence?

No. NBX4 EVM Mechanism Evidence uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.

Has NBX4 EVM Mechanism Evidence been verified?

Yes, 1 route of its 6 endpoints. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-10-24. Routes that were not paid for are unverified.

How does an AI agent find NBX4 EVM Mechanism Evidence?

Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.

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By Kamil Kot