---
title: "Backfill Signup History"
method: POST
path: "/admin/backfill_signup_history"
tags: ["accepts-api-key"]
---

# Backfill Signup History

`POST /admin/backfill_signup_history`

## Request

- Base URL: `https://api.tellers.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.tellers.ai/admin/backfill_signup_history`
- Auth: none declared

Seed signup history from existing users, streaming progress (SSE). Admin only.

The table ships empty, which would let every pre-existing user delete their
account and re-register for a second signup grant. This walks ``ta_user``
(ordered by creation date) and inserts one history row per email, marked as
already granted.

Idempotent and resumable: rows that exist are left untouched, so re-running
is a no-op. Keep calling with the returned ``next_offset`` until ``scanned``
comes back as 0.

## Query parameters

- `limit` integer
- `offset` integer
- `batch_size` integer
- `dry_run` boolean: Report what would be inserted without writing

## Headers

- `x-api-key` string, nullable
- `authorization` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/tellers/apis/tellers-api.md) - [All operations](https://skmtc.dev/tellers/apis/tellers-api/llms.txt) - [OpenAPI document](https://skmtc.dev/tellers/apis/tellers-api/revisions/fdaa0fa44a26?raw)