---
title: "Changes to Backfill token usage from AgentsView payloads"
method: POST
path: "/api/tokens/backfill"
---

# Changes to Backfill token usage from AgentsView payloads

`POST /api/tokens/backfill`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 23 revisions.

- **2026-07-30** `54a65a0ebf15` — 1 info
- **2026-06-22** `5b911260736f` — 2 info
- **2026-06-09** `538b457f849b` — 2 warning

## Changes

- **2026-07-30** `54a65a0ebf15` — 1 info
  - added the new optional request property `sessions/items/cost`
- **2026-06-22** `5b911260736f` — 2 info
  - added the new optional request property `sessions/items/cached_input_tokens`
  - added the new optional request property `sessions/items/input_tokens`
- **2026-06-09** `538b457f849b` — 2 warning
  - removed the request property `sessions/items/cached_input_tokens`
  - removed the request property `sessions/items/input_tokens`

---

[Operation](https://skmtc.dev/kenn-io/apis/roborev/docs/api/tokens/backfill/post.md) · [API](https://skmtc.dev/kenn-io/apis/roborev.md) · [Page](https://skmtc.dev/kenn-io/apis/roborev/changes/api/tokens/backfill/post)