Arkm

Arkm is an x402-native service at https://api.arkm.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. 11 endpoints listed.

Base

Offers

Offer	Endpoint	Price
Balances Address Get Arkham token balances for an address. $0.20 per call.	`/m/bz-api-arkm-com/x402/balances/address`	0.2 USDC
Flow Address Get Arkham historical USD flows for an address. $0.40 per call.	`/m/bz-api-arkm-com/x402/flow/address`	0.4 USDC
Intelligence Address Get Arkham intelligence for an address. $0.20 per call.	`/m/bz-api-arkm-com/x402/intelligence/address`	0.2 USDC
Intelligence Address Enriched Get enriched Arkham intelligence for an address. $0.40 per call.	`/m/bz-api-arkm-com/x402/intelligence/address-enriched`	0.4 USDC
Intelligence Entity Get Arkham intelligence for an entity. $0.20 per call.	`/m/bz-api-arkm-com/x402/intelligence/entity`	0.2 USDC
Intelligence Entity Summary Get Arkham summary statistics for an entity. $0.20 per call.	`/m/bz-api-arkm-com/x402/intelligence/entity-summary`	0.2 USDC
Intelligence Token Get Arkham token intelligence by pricing ID or chain/address. $0.20 per call.	`/m/bz-api-arkm-com/x402/intelligence/token`	0.2 USDC
Token Balance Get Arkham token balance by pricing ID or chain/address. $0.20 per call.	`/m/bz-api-arkm-com/x402/token/balance`	0.2 USDC
Holders By Address Get Arkham top token holders by chain/address. $6.00 per call.	`/m/bz-api-arkm-com/x402/token/holders/by-address`	6 USDC
X402 Transfers Get Arkham transfers with filters. Priced per row: $0.40 × limit (default 20, max 1650); pass the smallest useful limit.	`/m/bz-api-arkm-com/x402/transfers`	8 USDC
Transfers Unenriched Get Arkham unenriched transfers. Priced per row: $0.20 × limit (default 20, max 1650); pass the smallest useful limit.	`/m/bz-api-arkm-com/x402/transfers/unenriched`	4 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-arkm-com/x402/balances/address')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

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