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# Kustomer API

> Every Kustomer endpoint on Cotlet: inputs, JSON Schema, cURL, Python and Node.js examples and an example response for each call.

Source: https://cotlet.dev/docs/api/kustomer

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)

12 endpoints for Kustomer, each at its own method and path, called with your API key. Open an endpoint for its inputs, examples and response.

- Base URL: `https://cotlet.dev/api/v1/kustomer`
- Connects with: Your own Kustomer user login (agent, or a role that can reply and merge). What your agent can do follows your role. You sign in in your own browser and keep your SSO or 2-step verification.
- Integration page: https://cotlet.dev/integrations/kustomer-api-mcp-server

## Read

Return data and change nothing in the account.

| Endpoint | Description |
|---|---|
| [`GET /conversations/search`](https://cotlet.dev/docs/api/kustomer/search_conversations.md) | Conversations that match a status, tag, customer or update date, with the newest update first. |
| [`GET /conversations/{conversation_id}`](https://cotlet.dev/docs/api/kustomer/get_conversation.md) | One conversation with status, priority, assignment, tags and linked conversations. |
| [`GET /conversations/{conversation_id}/messages`](https://cotlet.dev/docs/api/kustomer/get_conversation_messages.md) | The message thread of a conversation, oldest first, with channel and direction. |
| [`GET /customers/search`](https://cotlet.dev/docs/api/kustomer/search_customers.md) | Customers by name, email, tag or company, with their open conversation count. |
| [`GET /customers/{customer_id}`](https://cotlet.dev/docs/api/kustomer/get_customer.md) | One customer profile with contact details, company, tags and recent conversations. |
| [`GET /tags`](https://cotlet.dev/docs/api/kustomer/list_tags.md) | Active conversation tags with their names. |

## Write

Change the account. Calls marked Confirm wait for the user to approve them.

| Endpoint | Description |
|---|---|
| [`POST /conversations/{conversation_id}/replies`](https://cotlet.dev/docs/api/kustomer/reply_to_conversation.md) (Confirm) | Send a reply to the customer on the channel of the last message. |
| [`POST /conversations/{conversation_id}/notes`](https://cotlet.dev/docs/api/kustomer/add_note.md) (Confirm) | Add a note only people in your organization can see. |
| [`POST /conversations/{conversation_id}/tags`](https://cotlet.dev/docs/api/kustomer/add_tags.md) | Add existing tags to one conversation and keep the others. |
| [`POST /conversations/{conversation_id}/snooze`](https://cotlet.dev/docs/api/kustomer/snooze_conversation.md) | Snooze a conversation until a time or until the customer replies. |
| [`POST /conversations/{conversation_id}/done/mark`](https://cotlet.dev/docs/api/kustomer/mark_conversation_done.md) | Set a conversation to Done. |
| [`POST /target-conversations/{target_conversation_id}/conversations/merge`](https://cotlet.dev/docs/api/kustomer/merge_conversations.md) (Confirm) | Merge one conversation into another of the same customer. |

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**Resources:** [Blog](https://cotlet.dev/blog.md) · [API docs](https://cotlet.dev/docs.md) · [Help center](https://cotlet.dev/help.md) · [Changelog](https://cotlet.dev/changelog.md) · [GitHub](https://github.com/cotletdev/cotlet)

**Solutions:** [For developers](https://cotlet.dev/for-developers.md) · [For automation agencies](https://cotlet.dev/for-agencies.md)

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Cotlet is an independent service. It is not affiliated with, endorsed by or sponsored by any of the products listed on this site. Product names are trademarks of their respective owners.

## 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.