N0brains

N0brains is an x402-native service at https://api.n0brains.com, indexed from the x402 Bazaar (Coinbase's public discovery directory). It charges callers itself in USDC on Base and is paid directly at its own wallet; Monex Protocol passes your request and payment headers through untouched. 3 endpoints listed.

Base

Offers

Offer	Endpoint	Price
X402 Macro Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.	`/m/bz-api-n0brains-com/x402/macro`	0.002 USDC
X402 Rotation Crypto market rotation and altseason regime detector: sector/asset rotation score, breadth, relative strength, and which coins are rotating in vs out. Tells an agent whether capital is flowing to BTC, ETH, or alts right now. Not financial advice.	`/m/bz-api-n0brains-com/x402/rotation`	0.002 USDC
X402 Signals Real-time crypto trading signals for BTC, ETH, SOL and 400+ coins — classified by type (whale flows, funding, liquidations, listings, news, on-chain), scored, with direction, confidence and conviction. Emitted signals' forward-return record is public at n0brains.com/proof. Not financial advice.	`/m/bz-api-n0brains-com/x402/signals`	0.005 USDC

Machine-readable: openapi.json with x-payment-info offers.

Try it live

Run the full MPP flow from your browser: catch the 402, sign the payment with your wallet, and watch it settle on-chain.

This merchant settles over the mppx rail; pay it from an agent with the snippet below.

Pay with an agent

Any MPP or x402-compatible client works. With mppx, payment is automatic:

import { Mppx, evm } from 'mppx/client'
import { privateKeyToAccount } from 'viem/accounts'

const mppx = Mppx.create({
  methods: [evm({
    account: privateKeyToAccount(process.env.KEY),
    currencies: [evm.assets.base.USDC],
  })],
})

const res = await mppx.fetch('https://api.meshgateway.co/m/bz-api-n0brains-com/x402/macro')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-api-n0brains-com/x402/macro
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …