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Payperbyte

Payperbyte is an x402-native service at https://x402.payperbyte.io, 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. 11 endpoints listed.

Base

Offers

OfferEndpointPrice
Feeds Address Reputation
Know-Your-Agent counterparty screening — reputation pillar. Signed ALLOW/WARN/BLOCK verdict on (domain, receiving address, amount, chain) before you release USDC. Screens the counterparty tuple you supply — not the calling agent's identity. Full method + scope: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/address-reputation0.1 USDC
Feeds Cctp Attestation Latency
Measured Circle CCTP v2 attestation latency: Fast/Standard distributions (never blended), first-party burn polling. Bounded observations; percentiles withheld below sample floor. Embedded EIP-712 receipt proves who signed the bytes, not that latency holds. Full: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/cctp-attestation-latency0.01 USDC
Feeds Earthquakes
USGS recent earthquakes worldwide (M2.5+)
/m/bz-x402-payperbyte-io/feeds/earthquakes0.003 USDC
Feeds Merchant Screen
Pre-settlement merchant screen: signed ALLOW/WARN/BLOCK on (domain, payTo, price) before you settle. Queries are logged (domain, payTo, price); screening is not covert — the merchant sees the probe. Full disclosure: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/merchant-screen0.1 USDC
Feeds Pkg Verdict
Signed ALLOW/WARN/BLOCK on installing a package@version: OSV.dev malicious-corpus + typosquat distance + registry signals. Verify before you install.
/m/bz-x402-payperbyte-io/feeds/pkg-verdict0.1 USDC
Feeds Positioning Snapshot
Cross-venue perp positioning (funding + open interest) from Hyperliquid, dYdX v4, Aevo; raw fields, abstains honestly where a venue lacks data.
/m/bz-x402-payperbyte-io/feeds/positioning-snapshot0.03 USDC
Feeds Reasoning Verdict
Verify-before-act risk oracle: POST an action context and get a signed ALLOW/WARN/BLOCK/ABSTAIN verdict + 0-100 score + reasons from a LOCAL model (no data egress). Advisory: the receipt proves provenance/integrity, not correctness. Full method: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/reasoning-verdict0.1 USDC
Feeds Regime Signal
BTC/ETH regime + realized-vol above/below call, 4h or 24h horizon. Signed EIP-712 delivery receipt, anchored on Base via EAS; scoring is a published deterministic rule against public Chainlink rounds, independently recomputable. Full method: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/regime-signal0.02 USDC
Feeds Sanctions Screen
Know-Your-Agent counterparty screening — sanctions pillar. Signed OFAC SDN + Consolidated screen on an address or name, pinned to the exact list-state (date + sha256). Screens the counterparty you supply — not the calling agent's identity. Full scope: https://x402.payperbyte.io/feeds
/m/bz-x402-payperbyte-io/feeds/sanctions-screen0.1 USDC
Feeds Threat Intel
Recent CVE highlights + CISA known-exploited-vulnerability entries, relayed from public sources (NVD, CISA KEV)
/m/bz-x402-payperbyte-io/feeds/threat-intel0.05 USDC
Feeds Weather
NWS weather forecasts for 5 US cities (NYC, LA, Chicago, Houston, Miami)
/m/bz-x402-payperbyte-io/feeds/weather0.005 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-x402-payperbyte-io/feeds/address-reputation')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-x402-payperbyte-io/feeds/address-reputation
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …