Integrations
Hermes × Visa

Visa for Hermes

Visa is one of the most widely used card brands in the world. With Hermes, the self-hosted agent runtime with a native MCP client, your agent can create payment links and invoices — customers then pay with Visa. The bridge is zahls.ch remote MCP: create an account, activate Visa, connect MCP in Hermes. Your agent uses the tools directly; transactions and payouts stay in the zahls.ch dashboard.

HermesVisa

Hermes Agent (Nous Research) is a self-hosted agent runtime with a native MCP client: external tools show up as first-class capabilities.

Add zahls.ch remote MCP to your Hermes config — endpoint https://www.zahls.ch/mcp with headers X-API-KEY and X-Instance. Hermes can then create payment links, trigger invoices, and query payment status.

Exact syntax depends on your Hermes version (HTTP / streamable HTTP MCP). Details and safety notes are in the connect guide.

Suitable for teams running Hermes self-hosted who want to drive payments without a custom bridge.

Features

  • Native MCP client in Hermes
  • zahls.ch remote HTTP endpoint
  • Payment tools without glue code
  • Same auth as the REST API
  • Fits self-hosted agent setups

Benefits

  • International reach for customers paying by card
  • Remote MCP instead of a custom glue API
  • Payment links and status as agent tools
  • zahls.ch tools as first-class capabilities in Hermes

Use cases

Visa for Hermes pays off in many scenarios:

  • International customers used to paying with credit or debit cards
  • Support or ops agents that create and share payment links with Visa
  • Teams connecting agent workflows to Swiss payments — without a custom backend in between

Setup

How to use Visa with Hermes

  1. Create a zahls.ch account and complete verification.
  2. Activate Visa 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 Hermes MCP config (HTTP URL plus X-API-KEY and X-Instance headers).
  5. Have the agent create a test payment link and complete a Visa payment in test mode.

FAQ

Do I need a separate contract for Visa?

No. Card acceptance runs through your zahls.ch account; you do not need your own acquiring contract.

How does Hermes 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 Visa with Hermes cost?

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