AgentDrives
For ownersFree check

MPP.

The Machine Payments Protocol: a way for a server to ask for payment over HTTP, so an agent can pay for a call or a plan without a checkout page.

Also called Machine Payments Protocol.

In our drives.

Each drive records whether the product takes MPP payments. Where it does, our agent may make one small payment there.

Agent payments in our data

From the source

“Servers MUST return 402 with a WWW-Authenticate: Payment header when payment is required or when a payment credential fails validation”

IETF draft, checked 3 Oct 2026

Products that offer MPP payments.

11 of the 151 products we drove.

  1. AgentMailL4Runs on its own
  2. FirecrawlL4Runs on its own
  3. ParallelL4Runs on its own
  4. StripeL3Does the work
  5. TavilyL3Does the work
  6. BrowserbaseL2Gets in
  7. ExaL2Gets in
  8. ApifyL1Needs a person

Every product we drove

See where an agent gets stuck in your product.

Free: what an agent finds on your site and any wall in its way.