---
title: "Share refresh, round 2"
method: POST
path: "/v1/keys/{key_id}/tss/refresh/round2"
tags: ["Key Custody"]
---

# Share refresh, round 2

`POST /v1/keys/{key_id}/tss/refresh/round2`

## Request

- Base URL: `https://api.1claw.co`
- URL: `https://api.1claw.co/v1/keys/{key_id}/tss/refresh/round2`
- Auth: HTTP bearer

Same shapes as keygen round 2: round-1 packages from participants 2 and 3.

## Path parameters

- `key_id` string, uuid, required

## Request body

- object
  - `session_id` string, uuid, required
  - `client_round1` string, required
  - `recovery_round1` string, required

## Response `200`

The vault's round-2 packages

- object
  - `session_id` string, uuid
  - `server_round2` string
  - `server_round2_for_recovery` string

## Other responses

- `400`: Invalid request
- `404`: Resource not found
- `409`: Resource already exists or conflict

---

[API](https://skmtc.dev/1claw/apis/1claw-api.md) · [All operations](https://skmtc.dev/1claw/apis/1claw-api/llms.txt) · [OpenAPI document](https://skmtc.dev/1claw/apis/1claw-api/revisions/5fa0918f3b41?raw)