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Developers

Payments

An order is paid only when a provider confirms it. Opening a pay link, creating a checkout or an agent saying it paid starts nothing.

Methods

  • Hosted invoice payment (card or crypto) (invoice_link): enabled, a person pays
  • Prepaid balance (balance): enabled, autonomous
  • PayPal Agent Ready (paypal_agent_ready): disabled — Needs PayPal merchant onboarding and approval for digital services; the account behind MediaKit's PayPal REST app is restricted (PAYEE_ACCOUNT_RESTRICTED).
  • Stripe Shared Payment Tokens (stripe_shared_payment_token): disabled — Preview programme: needs Stripe approval for this account and for digital advertising services.
  • Stripe Machine Payments Protocol (stripe_mpp): disabled — Not available to this Stripe account; eligibility for publishing services unverified.
  • x402 / USDC stablecoin (x402_usdc): disabled — No verified facilitator, receiving wallet or compliance review for crypto settlement.
  • OpenAI Agentic Commerce Protocol (openai_acp): disabled — Merchant onboarding with OpenAI not done; digital-service eligibility unverified.
  • Google Universal Commerce Protocol (google_ucp): disabled — Merchant onboarding with Google not done; digital-service eligibility unverified.

invoice_link

The order gets an invoice e-mailed to the account owner and a hosted pay page (card or crypto). The order moves to paid when Stripe's signed webhook or a confirmed NOWPayments crypto payment arrives; then publishing starts.

balance

The owner tops up a prepaid balance (recorded by MediaKit after payment). An order in an autonomous agent's limits debits it once — a database key makes a second charge for the same order impossible — and is released at once.

Currency, tax, refunds

GBP. No VAT/sales tax is charged by the seller (US LLC). Failed press release outlets are replaced or credited; refunds follow the refund policy. Everything is a digital service delivered online — nothing is shipped.