# agent_brokerage_at_date

> Resolve which brokerage an agent was at on a specific date.

<!-- Source: https://docs.actuallycare.com/tools/agent-brokerage-history/agent_brokerage_at_date -->

Resolve which brokerage an agent was at on a specific date. Returns the brokerage name, DRE license number, and date range of the matching responsible-broker relationship from CA DRE public records. Use this when a user asks "which brokerage was X at on Y date" or for historical escrow attribution. Returns null when the date predates the agent's recorded history (DRE typically goes back ~5–10 years).

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `user_id` | string | No | Platform user UUID. Defaults to the calling user when omitted. |
| `dre_license_id` | string | No | CA DRE 8-digit license number (alternative to user_id, useful for non-platform agents on a listing). |
| `on_date` | string | Yes | Date to resolve, in YYYY-MM-DD format. Both period start_date and end_date are inclusive bounds. · Format: Date (YYYY-MM-DD) |

## Example prompts

- "Which brokerage was I working under on March 15, 2022?"
- "Which brokerage was the agent with DRE license 01987654 at on June 15, 2019?"

## Safety

**Read-only.** This tool never changes your data — it only looks things up. Safe to run anytime.