---
title: "Tool-definition transparency log: signed tree head"
method: GET
path: "/api/v1/tools-log/sth"
---

# Tool-definition transparency log: signed tree head

`GET /api/v1/tools-log/sth`

## Request

- Base URL: `https://app.axiorank.com`
- URL: `https://app.axiorank.com/api/v1/tools-log/sth`
- Auth: none required

PUBLIC, unauthenticated. The current signed tree head of the tool-definition log. Pin it over time to confirm the log only ever grows.

## Response `200`

The current signed tree head.

- object

## Other responses

- `404`: No checkpoints sealed yet.
- `429`: Rate limited.

---

[API](https://skmtc.dev/axiorank/apis/axiorank-gateway-api.md) · [All operations](https://skmtc.dev/axiorank/apis/axiorank-gateway-api/llms.txt) · [OpenAPI document](https://skmtc.dev/axiorank/apis/axiorank-gateway-api/revisions/d8a7a33656e4?raw)