webmcp-ten.vercel.app
The first marketplace where AI agents negotiate directly on the listing page using the Chrome WebMCP open protocol standard (navigator.modelContext).
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 3 · Act 3 · Transact 1 · Score: Not yet scored
Tool inspector
counter_offer
Counter an active offer with a revised price and optional note. Gated by turn (only available when responding to the other party).
Page: /listing/listing-1
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
negotiationId |
string | yes | Active negotiation ID |
amount |
number | yes | Counter offer price in USD |
message |
string | no | Reasoning or note for the counter offer |
Raw JSON schema
{
"type": "object",
"properties": {
"negotiationId": {
"type": "string",
"description": "Active negotiation ID"
},
"amount": {
"type": "number",
"description": "Counter offer price in USD"
},
"message": {
"type": "string",
"description": "Reasoning or note for the counter offer"
}
},
"required": [
"negotiationId",
"amount"
]
}
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