---
title: "Changes to Update Agent"
method: PATCH
path: "/v1/agents/{agent_id}"
---

# Changes to Update Agent

`PATCH /v1/agents/{agent_id}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 42 revisions.

- **2026-10-30** `dbecff17a352`: 1 warning, 3 info
- **2026-10-07** `0d7df4435963`: 1 warning, 1 info
- **2026-10-02** `344aa757057e`: 1 warning

## Changes

- **2026-10-30** `dbecff17a352`: 1 warning, 3 info
  - added the new `live` enum value to the `modelTier` response property for the response status `200`
  - added the new optional request property `voicePrompt`
  - added the new `live` enum value to the request property `modelTier`
  - added the optional property `voicePrompt` to the response with the `200` status
- **2026-10-07** `0d7df4435963`: 1 warning, 1 info
  - added the new `realtime` enum value to the `modelTier` response property for the response status `200`
  - added the new `realtime` enum value to the request property `modelTier`
- **2026-10-02** `344aa757057e`: 1 warning
  - the `systemPrompt/anyOf[subschema #1]/` request property's maxLength was set to `20000`

---

[Operation](https://skmtc.dev/agentphone/apis/agentphone-api/docs/v1/agents/:agent_id/patch.md) - [API](https://skmtc.dev/agentphone/apis/agentphone-api.md) - [Page](https://skmtc.dev/agentphone/apis/agentphone-api/changes/v1/agents/:agent_id/patch)