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Countersignatory

Countersignatory Ltd · countersignatory.com

Claude

Let an agent buy a verified human's approval, verification or judgment at a published spot price, paid by x402 (USDC on Base) or card, answered by hand or refunded.

Open in Claude Marketplace

How to connect Countersignatory to Claude

  1. Open the Claude Marketplace listing and check the clients it supports.
  2. In Claude, open Customize → Connectors or use the option in the marketplace listing. Sign in to the service if prompted.
  3. Check that Countersignatory is available in your conversation before asking Claude to use it.
Official Claude setup guide

How to use Countersignatory

Tools listed by the marketplace

  • countersignatory_quote
  • countersignatory_register_interest
  • countersignatory_spot_index
  • countersignatory_place_order
  • countersignatory_get_order

Countersignatory on Claude Marketplace

Listing checked

Frequently asked questions

Why can’t Claude use Countersignatory?

Check that the connector is enabled in the current client and that the connected account can access the resource. In a managed workspace, check whether an administrator must enable it.