---
title: "Claude for small business: give Claude your tools"
url: https://conecto.chat/solutions/claude-for-small-business
description: "Connect Claude to an inbox, a phone line, invoices, bookings and books for your business. One connector for every area, paid per action, $1.00 to start."
updated: 2026-10-27
---

# Claude for small business

Claude can already write and plan for your business. Conecto gives it your inbox, phone line, invoices and books to act on.

Give this to your agent: `Set up Conecto from https://conecto.chat/SKILL.md, then show me what you can run for our business.`

## Example: `invoices_send`

Request: "Send the Elbblick invoice to Lukas Meyer with a short thank-you."

The documented reply of `invoices_send` ($0.10), for Hansen & Voss, a restaurant-equipment wholesaler in Hamburg with 60 staff (https://conecto.chat/tools/invoices/invoices_send.md):

```json
{
 "invoice": {
  "invoice_id": "2d9c4e7b-1a3f-4c5d-8e6f-0b1a2c3d4e5f",
  "kind": "invoice",
  "number": "INV-0042",
  "status": "sent",
  "currency": "EUR",
  "issue_date": "2026-10-14",
  "due_date": "2026-10-28",
  "overdue": false,
  "days_overdue": 0,
  "customer": {
   "contact_id": null,
   "company_id": null,
   "name": "Hotel Elbblick GmbH",
   "email": "lukas.meyer@hotel-elbblick.example",
   "address": "Elbchaussee 120\n22763 Hamburg",
   "tax_id": "",
   "country": null
  },
  "total": "13887.30",
  "total_formatted": "€13,887.30",
  "amount_paid": "0.00",
  "balance": "13887.30",
  "balance_formatted": "€13,887.30",
  "public_url": "https://cncto.co/i/_u3Gmo2r0-jnEA3tOB97r7VmHS0qK7TS",
  "created_at": "2026-10-14T08:00:00+00:00",
  "sent_at": "2026-10-14T08:00:00+00:00",
  "credited": "0.00",
  "items": [
   {
    "description": "Bistro chair, beech\nStackable, for terraces",
    "quantity": "40",
    "unit_price": "320",
    "tax_rate": "19",
    "discount_percent": "10",
    "amount": "12800.00",
    "discount": "1280.00",
    "tax": "2188.80",
    "total": "13708.80"
   },
   {
    "description": "Delivery and setup",
    "quantity": "1",
    "unit_price": "150",
    "tax_rate": "19",
    "discount_percent": "0",
    "amount": "150.00",
    "discount": "0.00",
    "tax": "28.50",
    "total": "178.50"
   }
  ],
  "totals": {
   "subtotal": "12950.00",
   "subtotal_formatted": "€12,950.00",
   "discount": "1280.00",
   "discount_formatted": "€1,280.00",
   "tax": "2217.30",
   "tax_formatted": "€2,217.30",
   "total": "13887.30",
   "total_formatted": "€13,887.30",
   "credited": "0.00",
   "credited_formatted": "€0.00",
   "amount_paid": "0.00",
   "amount_paid_formatted": "€0.00",
   "balance": "13887.30",
   "balance_formatted": "€13,887.30",
   "taxes": [
    {
     "rate": "19",
     "base": "11670.00",
     "amount": "2217.30",
     "amount_formatted": "€2,217.30"
    }
   ]
  },
  "supply": {
   "label": "Date of supply",
   "text": "October 14, 2026",
   "from": "2026-10-14",
   "until": "2026-10-14"
  },
  "tax_exemption": null,
  "tax_note": null,
  "vat_exchange_rate": null,
  "national_vat": null,
  "e_invoice": null,
  "notes": "",
  "payment_link": null,
  "business": {
   "name": "Hansen & Voss GmbH",
   "address": "Billbrookdeich 112\n22113 Hamburg\nGermany",
   "tax_id": "DE123456789",
   "email": "billing@hansenvoss.example",
   "phone": "+49 40 66969 100",
   "logo_file_id": "",
   "footer": "Please pay by bank transfer to Hansen & Voss GmbH\nIBAN DE89 3704 0044 0532 0130 00, BIC COBADEFFXXX",
   "tax_label": "VAT",
   "paper": "a4",
   "country": "DE",
   "legal_notes": "Hansen & Voss GmbH, Amtsgericht Hamburg HRB 123456\nManaging directors: Clara Hansen, Henrik Voss",
   "document_language": ""
  },
  "pdf": {
   "file_id": "adfc06f7-22c0-45d5-bb24-bdfe19af441e",
   "name": "Invoice INV-0042.pdf",
   "content_type": "application/pdf",
   "size": "582 bytes",
   "size_bytes": 582,
   "sha256": "7a628ee1199dd863f0236a61a39b6729a977b4ea18a669e9930a57280cb2326e",
   "created_at": "2026-10-14T08:00:00+00:00",
   "download_url": "https://cncto.co/d/adfc06f7-22c0-45d5-bb24-bdfe19af441e?t=eyJmIjoiYWRmYzA2ZjctMjJjMC00NWQ1LWJiMjQtYmRmZTE5YWY0NDFlIiwiZXhwIjoxNzkyMTYwODk3fQ:1xHMRN:8J2-MHhqPVO21ZmnbiGiq9g8BSSRnWwvZxr10NUQ3Bs",
   "link_expires_in_hours": 24
  },
  "payments": [],
  "quote_id": null,
  "credit_notes": [],
  "viewed_at": null,
  "accepted_at": null,
  "declined_at": null,
  "paid_at": null,
  "voided_at": null,
  "void_reason": null,
  "last_emailed_at": "2026-10-14T08:00:00+00:00",
  "reminders_sent": 0,
  "history": [
   {
    "at": "2026-10-14T08:00:00+00:00",
    "event": "created",
    "detail": "",
    "by": "key 4101 (Pip)"
   },
   {
    "at": "2026-10-14T08:00:00+00:00",
    "event": "sent",
    "detail": "INV-0042",
    "by": "key 4101 (Pip)"
   }
  ]
 },
 "emailed_to": "lukas.meyer@hotel-elbblick.example",
 "warnings": []
}
```

## How it works

1. **Add the connector**: In Claude: Customize, Connectors, Add custom connector. Address: https://api.conecto.chat/v1/mcp
2. **Sign in once**: You tick the areas it may use, and it runs on a key of its own with a daily budget.
3. **Ask** (`invoices_send`, $0.10): Claude picks the tool and pays for the call. For example: "Send the Elbblick invoice to Lukas Meyer with a short thank-you."

## What it costs

Your agent pays per call from one prepaid balance, with no plan or seat fee.

| What | Price |
| --- | --- |
| Adding the connector | Free |
| Reading your records | Free |
| A change to a record | $0.01 |
| An email | $0.001 |
| An invoice sent | $0.10 |

Reading is free up to 1,000,000 reads a month for the whole account, then $0.50 per 10,000. Your agent starts with $1.00 of credit. Top-ups start at $5.00, plus a 7% + $0.35 fee, and the first one is doubled, up to $20.00 extra.

## Tools

- [`email_send`](https://conecto.chat/tools/email/email_send.md) ($0.001 per recipient, plus $0.001 per started MB of attachments for each recipient ($0.001 to one person without attachments), up to $0.52): Sends an email from one of the business's inboxes, with files from the store attached, or answers a received message in its thread.
- [`invoices_send`](https://conecto.chat/tools/invoices/invoices_send.md) ($0.10): Sends a draft: it gets the next number, its PDF is made, and the customer is emailed a link to view, pay or accept it.
- [`calendar_book`](https://conecto.chat/tools/calendar/calendar_book.md) ($0.01): Books a free time for someone, who gets a confirmation email with an invite and a link to change it.
- [`phone_list_calls`](https://conecto.chat/tools/phone/phone_list_calls.md) (free): Calls to and from the business's numbers, newest first: who, when, how long and what it cost, missed ones included.
- [`ticket_reply`](https://conecto.chat/tools/helpdesk/ticket_reply.md) ($0.05): Emails the requester a reply in the ticket's thread, with files if needed, or adds a private note, and can set the status.
- [`books_report`](https://conecto.chat/tools/books/books_report.md) (free): A report: profit and loss, balance sheet, trial balance, ledger, tax, the VAT or OSS return, the cash flow ahead or a snapshot of the business.
- [`crm_get_customer`](https://conecto.chat/tools/crm/crm_get_customer.md) (free): Everything open with one customer in one read: deals, tickets, invoices, quotes, signatures, meetings and their last messages.
- [`m365_mail_send`](https://conecto.chat/tools/microsoft365/m365_mail_send.md) ($0.001): Sends an email, or a reply in the same thread, as one of the company's mailboxes.

All 581 tools: https://conecto.chat/tools.md

## Good to know

- One connector for every area: you tick the ones Claude may use when you sign in.
- Claude's free plan allows one custom connector, which is all Conecto needs.
- The connector runs on its own key with a daily budget, and risky actions can wait for your approval.
- Your Gmail or Outlook can stay where it is: the Google Workspace and Microsoft 365 tools work inside them.

## Questions

### Is Claude free?

Claude has a free plan, and on it you can add one custom connector. Conecto itself starts with $1.00 of credit and charges per action after that, with no plan or seat fee.

### Can Claude send emails?

Yes. Claude's own Gmail connector sends after you approve each message. Conecto adds an inbox on your business's own subdomain, or sends from your Gmail or Outlook mailbox through the Google Workspace and Microsoft 365 tools.

### How do I connect Claude to my business tools?

In Claude, open Customize, then Connectors, add a custom connector and paste Conecto's address, https://api.conecto.chat/v1/mcp. Choose "Register automatically" under OAuth client, sign in and tick the areas Claude may use. It can then use those tools in any chat.

### Who hosts it?

Conecto hosts the servers, the database, the phone lines, the mail, the file store and the MCP servers. Your agent only needs the address.

## Read next

- [Claude connectors](https://conecto.chat/guides/claude-connectors.md)
- [Can ChatGPT and Claude send emails?](https://conecto.chat/guides/can-chatgpt-and-claude-send-emails.md)
- [What is an MCP server?](https://conecto.chat/guides/what-is-an-mcp-server.md)
- [Zapier MCP alternatives in 2026](https://conecto.chat/guides/zapier-mcp-alternatives.md)

## For agents

- Start here: https://conecto.chat/SKILL.md
- This page in Markdown: https://conecto.chat/solutions/claude-for-small-business.md
- Sign up: POST https://api.conecto.chat/v1/signup
- Skills index: https://conecto.chat/.well-known/agent-skills/index.json
- MCP (Email): https://api.conecto.chat/mcp/email
- MCP (Invoices): https://api.conecto.chat/mcp/invoices
- MCP (Calendar): https://api.conecto.chat/mcp/calendar
- Connector for ChatGPT, Claude or Grok, one for every area: https://api.conecto.chat/v1/mcp
- Tools (Email): https://conecto.chat/tools/email.md
- Tools (Invoices): https://conecto.chat/tools/invoices.md
- Tools (Calendar): https://conecto.chat/tools/calendar.md
- Every reply carries `cost_usd` and `balance_usd`.

A `invoices_send` call:

```bash
curl -X POST https://api.conecto.chat/v1/tools/invoices_send \
  -H "Authorization: Bearer $CONECTO_KEY" \
  -H "Content-Type: application/json" \
  -d '{"invoice_id":"2d9c4e7b-1a3f-4c5d-8e6f-0b1a2c3d4e5f","message":"Thank you for your order. The chairs arrive in week 49."}'
```

## Related

- [ChatGPT for small business](https://conecto.chat/solutions/chatgpt-for-small-business.md): Connect ChatGPT Business, Enterprise or Edu to your business's inbox, calendar, invoices and books. It acts through Conecto and pays per action.
- [AI invoicing](https://conecto.chat/solutions/ai-invoicing.md): Quotes and invoices in your business's name, sent by your own AI agent. Each one has a page where the customer pays online.
- [AI receptionist](https://conecto.chat/solutions/ai-receptionist.md): A phone number in the US or Canada for your business, answered by your own AI agent. Every call ends with a transcript and a short summary.
