Let your AI agent
do the billing.

This path uses our open-source reference server. It requires cloning the honestinvoice-live repo locally. If you want a no-checkout setup, use the REST API via the curl examples further down.

1. 1Clone the honestinvoice-live repo and run npm install.
2. 2Open Settings → Developer → MCP Servers in Claude Desktop.
3. 3Add a new server named honest-invoice. Set command to npx and args to tsx,src/mcp-server.ts. Point the working directory to the honestinvoice-live checkout.
4. 4Add HONEST_INVOICE_API_KEY (your dedicated key) and APP_BASE_URL (https://honestinvoice.com). Keep the key private and never commit it to source control.
5. 5Click Save. A green status means you are connected.

1. 1Open Settings → Features → MCP in Cursor.
2. 2Add a new MCP server with the JSON config below. Replace the placeholder values with your actual credentials.
3. 3Restart Cursor and check the MCP panel — Honest Invoice tools should appear.

{
  "mcpServers": {
    "honest-invoice": {
      "command": "npx",
      "args": ["tsx", "src/mcp-server.ts"],
      "env": {
        "HONEST_INVOICE_API_KEY": "hi_mcp_your-dedicated-key",
        "APP_BASE_URL": "https://honestinvoice.com"
      }
    }
  }
}

1. 1Open Settings → MCP in the OpenClaw Control UI, or edit ~/.openclaw/openclaw.json.
2. 2Add the JSON config below under mcp.servers. Replace the placeholder API key and ensure the OpenClaw gateway can run npx. For a remote server, use the Streamable HTTP config below instead.
3. 3Verify the connection with openclaw mcp doctor honest-invoice --probe. Reload or restart the gateway if the tools do not appear. For remote HTTP setup, set the transport to streamable-http and use the hosted endpoint above.

{
  "mcp": {
    "servers": {
      "honest-invoice": {
        "command": "npx",
        "args": ["tsx", "src/mcp-server.ts"],
        "env": {
          "HONEST_INVOICE_API_KEY": "hi_mcp_your-dedicated-key",
          "APP_BASE_URL": "https://honestinvoice.com"
        },
        "enabled": true
      }
    }
  }
}

{
  "mcp": {
    "servers": {
      "honest-invoice": {
        "url": "https://honestinvoice.com/api/mcp",
        "transport": "streamable-http",
        "headers": {
          "Authorization": "Bearer hi_mcp_your-dedicated-key"
        },
        "enabled": true
      }
    }
  }
}

1. 1Edit ~/.hermes/config.yaml or run hermes mcp to manage MCP servers interactively. For a remote setup, use the hosted Streamable HTTP config above with a URL-based server entry.
2. 2Add the YAML config below under mcp_servers. Replace the placeholder API key and keep this file private. For a remote server, use the Streamable HTTP config below instead.
3. 3Start Hermes with hermes chat. After changing the config, use /reload-mcp to rediscover the Honest Invoice tools.

mcp_servers:
  honest-invoice:
    command: "npx"
    args: ["tsx", "src/mcp-server.ts"]
    env:
      HONEST_INVOICE_API_KEY: "hi_mcp_your-dedicated-key"
      APP_BASE_URL: "https://honestinvoice.com"
    enabled: true

mcp_servers:
  honest-invoice:
    url: "https://honestinvoice.com/api/mcp"
    headers:
      Authorization: "Bearer hi_mcp_your-dedicated-key"
    enabled: true