Integrations
OpenClaw × Invoice

Kauf auf Rechnung for OpenClaw

Kauf auf Rechnung is classic Swiss invoice payment with a QR reference. With OpenClaw, the open-source agent gateway with MCP support, your agent can create payment links and invoices — customers then pay with Kauf auf Rechnung. The bridge is zahls.ch remote MCP: create an account, activate Kauf auf Rechnung, connect MCP in OpenClaw. Your agent uses the tools directly; transactions and payouts stay in the zahls.ch dashboard.

OpenClawInvoice

OpenClaw is an open-source agent gateway: you run a gateway process and connect chat channels plus tools — including MCP servers.

Via zahls.ch remote MCP, OpenClaw gets the same payment tools as Cursor or Claude: create payment links, invoices and donations, query transactions. Authenticate with X-API-KEY and X-Instance.

Your agent can drive payments without building a custom glue API. For async events when a payment arrives, still add webhooks.

Suitable for developers and teams running OpenClaw self-hosted who need Swiss payments in agent workflows.

Features

  • Connect via remote MCP
  • Payment links, invoices, status as tools
  • Auth with X-API-KEY and X-Instance
  • No custom backend in between
  • Complements webhooks for real-time events

Benefits

  • Trust through familiar invoice payment
  • Remote MCP instead of a custom glue API
  • Payment links and status as agent tools
  • Drive payments from the agent workflow — without a custom glue API

Use cases

Kauf auf Rechnung for OpenClaw pays off in many scenarios:

  • Customers and companies that deliberately pay by invoice
  • Support or ops agents that create and share payment links with Kauf auf Rechnung
  • Teams connecting agent workflows to Swiss payments — without a custom backend in between

Setup

How to use Kauf auf Rechnung with OpenClaw

  1. Create a zahls.ch account and complete verification.
  2. Activate Kauf auf Rechnung in your zahls.ch dashboard under payment methods.
  3. Create an API key and note your instance name.
  4. Add the zahls.ch remote MCP endpoint to your OpenClaw MCP config (URL plus X-API-KEY and X-Instance headers).
  5. Have the agent create a test payment link and complete a Kauf auf Rechnung payment in test mode.

FAQ

Do I need a separate contract for Kauf auf Rechnung?

No. You activate Kauf auf Rechnung in your zahls.ch account – without a separate acquiring contract.

How does OpenClaw connect to zahls.ch?

Via remote MCP: endpoint https://www.zahls.ch/mcp with the X-API-KEY and X-Instance headers. Details are in the connect guide under Help → Agents.

What does Kauf auf Rechnung with OpenClaw cost?

Transaction fees depend on your zahls.ch plan. There are no setup fees for MCP or the agent connection.