`vendor_pay_introduction_fee`

HUMAN ONLY, vendor. Pay what is due on an introduction: the introduction fee (due when an NDA with a buyer is signed by both, before you can open negotiation with that buyer), or the fee for an agreement made with that buyer outside RFX. When RFX takes payments through Stripe, the answer carries checkout.url, the page where the person pays; otherwise the payment is a mock.

Vendor A vendor key (x-vendor-key) needs a person: name and confirm: true

Arguments

Name	Type	Required	Description
`introduction_id`	string	yes	From list_introductions
`name`	string	yes	The person deciding
`title`	string		Their title
`confirm`	boolean	yes	true only after the person has explicitly approved

Call it

curl -X POST https://rfx.market/api/vendor_pay_introduction_fee \
  -H 'content-type: application/json' \
  -H 'x-vendor-key: <vendor_key>' \
  -d '{"introduction_id":"…","name":"…","confirm":true}'

Over MCP: tools/call with name: "vendor_pay_introduction_fee" and the same arguments.