---
title: "Changes to Get Agent Well Known Card"
method: GET
path: "/v1/agents/{agent_id}/.well-known/agent-card.json"
---

# Changes to Get Agent Well Known Card

`GET /v1/agents/{agent_id}/.well-known/agent-card.json`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 98 revisions.

- **2026-09-24** `b644aa8a6a70`: 5 breaking, 9 warning
- **2026-08-14** `082e677c141c`: 6 info
- **2026-07-08** `8940d7f77282`: 1 breaking, 3 warning, 3 info
- **2026-06-18** `dad98bb65260`: 1 info
- **2026-03-30** `e9c153221160`: 1 breaking

## Changes

- **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
  - removed the required property `supportedInterfaces` from the response with the `200` status
  - removed the optional property `authentication` from the response with the `200` status
  - removed the optional property `defaultInputModes` from the response with the `200` status
  - removed the optional property `defaultOutputModes` from the response with the `200` status
  - removed the optional property `description` from the response with the `200` status
  - removed the optional property `documentationUrl` from the response with the `200` status
  - removed the optional property `provider` from the response with the `200` status
  - removed the optional property `security` from the response with the `200` status
  - removed the optional property `securitySchemes` from the response with the `200` status
  - removed the optional property `version` from the response with the `200` status
- **2026-08-14** `082e677c141c`: 6 info
  - the endpoint scheme security `bearer` was added to the API
  - the endpoint scheme security `HTTPBearer` was removed from the API
  - api tag `public` added
  - api tag `agents` removed
  - api tag `agents-well-known` removed
  - api tag `protected` removed
- **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
  - added the optional property `skills/items/securityRequirements` to the response with the `200` status
  - the response property `supportedInterfaces` became required for the status `200`
  - response property `supportedInterfaces` list-of-types was narrowed by removing types `null` from media type `application/json` of response `200`
- **2026-06-18** `dad98bb65260`: 1 info
  - endpoint added
- **2026-03-30** `e9c153221160`: 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/agentarea/apis/agentarea-api/docs/v1/agents/:agent_id/.well-known/agent-card.json/get.md) - [API](https://skmtc.dev/agentarea/apis/agentarea-api.md) - [Page](https://skmtc.dev/agentarea/apis/agentarea-api/changes/v1/agents/:agent_id/.well-known/agent-card.json/get)