---
title: "Get Agent Well Known"
method: GET
path: "/v1/agents/{agent_id}/a2a/well-known"
tags: ["v1", "protected"]
---

# Get Agent Well Known

`GET /v1/agents/{agent_id}/a2a/well-known`

The agent card, also served at ``.well-known/agent-card.json``.

## Path parameters

- `agent_id` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-26** `d3ad8e1a3681` — 1 info
  - for the `path` request parameter `agent_id`, the format was generalized from `uuid` to no format
- **2026-09-24** `b644aa8a6a70` — 5 breaking, 9 warning
  - the response's body type changed from `object` to no type for status `200`
  - removed the required property `capabilities` from the response with the `200` status
  - removed the required property `name` from the response with the `200` status
  - removed the required property `skills` from the response with the `200` status
  - …10 more
- **2026-07-08** `8940d7f77282` — 1 breaking, 3 warning, 3 info
  - removed the required property `url` from the response with the `200` status
  - removed the optional property `capabilities/stateTransitionHistory` from the response with the `200` status
  - removed the optional property `protocolVersion` from the response with the `200` status
  - removed the optional property `supportsAuthenticatedExtendedCard` from the response with the `200` status
  - …3 more
- **2026-06-18** `dad98bb65260` — 2 info
  - added the optional property `capabilities/extendedAgentCard` to the response with the `200` status
  - added the optional property `supportedInterfaces` to the response with the `200` status
- …earlier changes not shown

[Full history](https://skmtc.dev/agentarea/apis/agentarea-api/changes/v1/agents/:agent_id/a2a/well-known/get.md)

---

[API](https://skmtc.dev/agentarea/apis/agentarea-api.md) · [All operations](https://skmtc.dev/agentarea/apis/agentarea-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agentarea/apis/agentarea-api/revisions/d3ad8e1a3681?raw)