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<div className="blog-narrow">
  <a href="/blog" className="blog-back">Blog</a>

  <p className="blog-date" style={{ color: 'var(--vocs-color_text3)', fontSize: '14px' }}>Monday, June 8, 2026</p>

  # EVM and x402 support \[Use one SDK for MPP and x402 payments on any EVM blockchain]

  MPP now supports `charge` payments on any EVM network, including Ethereum, Base, and Polygon. `mppx` also supports x402 [`exact`](https://docs.x402.org/schemes/exact) flows through the same payment-method interface.

  Use `evm.charge` when you want one integration for MPP Challenges and compatible x402 payment requests. The server advertises both protocols, then verifies whichever Credential the client returns.

  ## Server

  Configure one EVM charge method. Add `x402.facilitator` when the endpoint accepts x402 `exact` payments.

  ```ts [server.ts]
  import { Mppx, evm } from 'mppx/server'

  const mppx = Mppx.create({
    methods: [
      // [!code hl:start]
      evm.charge({
        currency: evm.assets.baseSepolia.USDC,
        recipient: '0xYourAddress',
        x402: {
          facilitator: 'https://example.com/facilitator',
        },
      }),
      // [!code hl:end]
    ],
  })

  const paid = mppx.evm.charge({
    amount: '0.01',
    description: 'Premium API access',
  })
  ```

  ## Client

  The client signs MPP Challenges and compatible x402 Challenges. It selects a protocol from the payment methods available to the request.

  ```ts [client.ts]
  import { Fetch, evm } from 'mppx/client'
  import { privateKeyToAccount } from 'viem/accounts'

  const fetch = Fetch.from({
    methods: [
      // [!code hl:start]
      evm.charge({
        account: privateKeyToAccount(
          '0x0123456789012345678901234567890123456789012345678901234567890123',
        ),
        currencies: [evm.assets.baseSepolia.USDC],
        maxAmount: '1.00',
      }),
      // [!code hl:end]
    ],
  })

  const response = await fetch('https://mpp.dev/api/ping/paid')
  console.log(response.status)
  // @log: 200
  ```

  ## Learn more

  * [Use MPP with x402](/guides/use-mpp-with-x402)
  * [`evm.charge` payment method](/payment-methods/evm/charge#evm-charge)
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