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# Create contractor

> Add a contractor to your iFirma list. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/ifirma/create_contractor

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Add a contractor to your iFirma list.

iFirma MCP tools: https://cotlet.dev/docs/mcp/ifirma.md

MCP tool: `ifirma_write → create_contractor`

Access: write.

Creates a contractor record. Name, postal code and city are required. Nothing is sent to anyone, and the contractor can be edited or deleted in the app, so create_contractor runs without asking first.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `name` | string | yes | Contractor name, up to 150 characters. |
| `postal_code` | string | yes | Postal code. |
| `city` | string | yes | City. |
| `street` | string | no | Street and number. |
| `nip` | string | no | Tax number (NIP). |
| `country_code` | string | no | Two-letter country code. |
| `email` | string | no | Email address used for sending invoices and reminders. |
| `private_person` | boolean | no | true for a private person. Default: false. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "ifirma_write",
    "arguments": {
      "operation": "create_contractor",
      "arguments": {
        "name": "Jane Doe",
        "postal_code": "postal code",
        "city": "city"
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "id": "c_4901",
    "name": "Lime Courier Sp. z o.o.",
    "nip": "9512345678",
    "email": "office@limecourier.example",
    "city": "Warsaw",
    "postal_code": "00-001",
    "country_code": "PL"
  },
  "isError": false
}
```

Previous: [List KSeF purchase invoices](https://cotlet.dev/docs/mcp/ifirma/list_ksef_purchase_invoices.md)
Next: [Save invoice draft](https://cotlet.dev/docs/mcp/ifirma/save_invoice_draft.md)

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## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

One call creates the account and sends the access request; we email the user when access is granted.