Hyperextend

Hyperextend is an x402-native service at https://api.hyperextend.xyz, 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. 6 endpoints listed.

Base

Offers

Offer	Endpoint	Price
1m Latest The most-recent N OHLCV candles (≤5000). Same per-row pricing as the windowed read ($0.00001 base for main/spot, $0.000025 premium for HIP-3/HIP-4); candles lag ~2 days.	`/m/bz-api-hyperextend-xyz/v1/candles/BTC/1m/latest`	0.002 USDC
Liquidations BTC Forced-liquidation tape over a time window, reconstructed from the node-fills archive (Hyperliquid has no public liquidations feed). Each row is a trade row (coin, side, px, sz, time, hash, tid, users:[buyer, seller]) plus the liquidation markers (method market\|backstop, markPx, liquidatedUser, dir). Priced per asset-hour ($0.005 base, $0.01 HIP-3/HIP-4) plus $0.05 per uncached archive hour pulled	`/m/bz-api-hyperextend-xyz/v1/liquidations/BTC`	0.011 USDC
Liquidations Coverage Archive coverage for a coin's liquidations over a window (≤7 days): which archived hours hold liquidations and where the gaps are. Warms the cache for everyone after. Priced floor ($0.001) + $0.05 per archived hour examined.	`/m/bz-api-hyperextend-xyz/v1/liquidations/coverage`	0.001 USDC
100 Oi Derived two-sided open interest for a HIP-4 outcome market, per minute (circulating-supply times mark, summed over both sides). Priced per row ($0.000025 premium); served live. Takes the integer outcome id (e.g. 100).	`/m/bz-api-hyperextend-xyz/v1/outcome/100/oi`	0.125725 USDC
%231000 Latest The most-recent N HIP-4 outcome-side rows (≤5000). Priced per row ($0.000025 premium); served live.	`/m/bz-api-hyperextend-xyz/v1/outcome_ctx/%231000/latest`	0.003475 USDC
Trades BTC Raw market trades over a time window — the live hot tier (~24h) plus S3 read-through for older history (archive from 2025-05-25), merged. Each row mirrors HL's WsTrade verbatim, including the buyer/seller addresses (`users`) and the trade `hash`. Priced per asset-hour ($0.015 base, $0.03 HIP-3/HIP-4) plus $0.05 per uncached archive hour pulled (warms the cache); ≤24 asset-hours/request.	`/m/bz-api-hyperextend-xyz/v1/trades/BTC`	0.031 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-hyperextend-xyz/v1/candles/BTC/1m/latest')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-api-hyperextend-xyz/v1/candles/BTC/1m/latest
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …