> ## Documentation Index
> Fetch the complete documentation index at: https://docs.talkover.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Callback Sources

> Update the list of source agents for a callback agent

# Update Callback Sources

Replace the list of source agents associated with this callback agent. The provided list completely replaces the existing one.

## Endpoint

```
PUT /api/v1/agents/{agent_id}/callback
```

## Path parameters

<ParamField path="agent_id" type="string" required>UUID of the callback agent.</ParamField>

## Request headers

<ParamField header="Authorization" type="string" required>
  Bearer token. Format: `Bearer talq_your_environment_token_here`
</ParamField>

<ParamField header="Content-Type" type="string" required>
  Must be set to `application/json`
</ParamField>

## Request body

<ParamField body="source_agent_ids" type="array" required>
  New full list of outbound agent UUIDs that should route callbacks here. Must contain at least one entry.
</ParamField>

## Examples

<RequestExample>
  ```bash theme={null}
  curl -X PUT "https://app.talkover.ai/api/v1/agents/agent-uuid-1/callback" \
    -H "Authorization: Bearer talq_your_environment_token_here" \
    -H "Content-Type: application/json" \
    -d '{
      "source_agent_ids": ["agent-uuid-2"]
    }'
  ```
</RequestExample>

## Response

<ResponseExample>
  ```json theme={null}
  {
    "success": true,
    "data": {
      "id": "agent-uuid-1",
      "callback_config": {
        "source_agent_ids": ["agent-uuid-2"]
      }
    }
  }
  ```
</ResponseExample>

## Notes

* This is a **replace** operation, not append. To remove all sources but keep the callback role, send an empty array — but note that an empty array fails validation; use [Remove Callback Role](/api-reference/endpoints/remove-callback-role) instead.
* To add or remove individual sources, fetch the current list with [Get Callback Agent](/api-reference/endpoints/get-callback-agent), modify it, then send the full updated list here.