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# List relations

> Customers and suppliers (relations) with code, name, city and email, filtered by name, email, code, city or type. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/e-boekhouden/list_relations

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)

Customers and suppliers (relations) with code, name, city and email, filtered by name, email, code, city or type.

e-Boekhouden MCP tools: https://cotlet.dev/docs/mcp/e-boekhouden.md

MCP tool: `e_boekhouden_read → list_relations`

Access: read.

Returns relations from the administration you are signed in to. Filter by name, email, relation code, city or type (B for business, P for private) to find one before you invoice it. Use limit and offset for the next page. The relation_id from each item goes into the other tools.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `name` | string | no | Company or person name. Wildcards ? and % are allowed. |
| `email` | string | no | Exact email address. |
| `code` | string | no | Relation code. |
| `city` | string | no | Primary city. |
| `type` | enum | no | B (business) or P (private). |
| `limit` | integer | no | Number of items to return. |
| `offset` | integer | no | Number of items to skip, for the next page. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "e_boekhouden_read",
    "arguments": {
      "operation": "list_relations",
      "arguments": {}
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "relations": [
      {
        "relation_id": 1042,
        "code": "STN001",
        "type": "B",
        "name": "Studio Noord BV",
        "city": "Utrecht",
        "email": "admin@studionoord.example",
        "term_of_payment": 14,
        "inactive": false
      }
    ],
    "total": 1
  },
  "isError": false
}
```

Next: [Get relation](https://cotlet.dev/docs/mcp/e-boekhouden/get_relation.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.