---
title: "Changes to Invoke Agent A2A"
method: POST
path: "/a2a/{agent_id}"
---

# Changes to Invoke Agent A2A

`POST /a2a/{agent_id}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 42 revisions.

- **2026-09-18** `082b5fabd909` — 2 info

## Changes

- **2026-09-18** `082b5fabd909` — 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status

---

[Operation](https://skmtc.dev/flock/apis/litellm-api/docs/a2a/:agent_id/post.md) · [API](https://skmtc.dev/flock/apis/litellm-api.md) · [Page](https://skmtc.dev/flock/apis/litellm-api/changes/a2a/:agent_id/post)