---
title: "Get ARD manifest"
method: GET
path: "/well-known/ard.json"
tags: ["AiCatalog"]
---

# Get ARD manifest

`GET /well-known/ard.json`

## Request

- The document declares no server URL.
- Auth: none declared

## Response `200`

The AI Catalog document (ARD v0.91 normative path).

- AiCatalog: AI Catalog document per the ai-catalog.io specification, listing agent and tool entries hosted by this registry.
  - `specVersion` string, required
  - `host` AiCatalogHost: Information about the AI Catalog host (this registry instance).
    - `displayName` string
    - `identifier` string
    - `documentationUrl` string
    - `logoUrl` string
  - `entries` AiCatalogEntry[], required
    - `identifier` string, required
    - `displayName` string
    - `type` string, required
    - `url` string
    - `description` string
    - `tags` string[]
    - `capabilities` string[]
    - `version` string
    - `updatedAt` string
    - `representativeQueries` string[]

## Other responses

- `401`: Common response for all operations that can return a `401` error indicating authentication is required.
- `403`: Common response for all operations that can return a `403` error indicating the user is authenticated but not authorized.
- `500`: Common response for all operations that can fail with an unexpected server error.

## Changes

- **2026-10-31** `ff9684af2aad`: 15 info
  - added the optional property `ruleViolation/causes/items/code` to the response with the `401` status
  - added the optional property `ruleViolation/causes/items/code` to the response with the `403` status
  - added the optional property `ruleViolation/causes/items/code` to the response with the `500` status
  - added the optional property `ruleViolation/causes/items/direction` to the response with the `401` status
  - …11 more
- **2026-10-29** `f17f5df4e79c`: 3 info
  - added the optional property `ruleViolation` to the response with the `401` status
  - added the optional property `ruleViolation` to the response with the `403` status
  - added the optional property `ruleViolation` to the response with the `500` status
- **2026-09-29** `ae86d58ef8d8`: 1 warning
  - removed the optional property `nextPageToken` from the response with the `200` status
- **2026-09-03** `349e4c0a9515`: 1 info
  - added the optional property `entries/items/representativeQueries` to the response with the `200` status
- **2026-09-03** `2a4c89ab9c9e`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/changes/well-known/ard.json/get.md)

---

[API](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3.md) - [All operations](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/llms.txt) - [OpenAPI document](https://skmtc.dev/apicurio/apis/apicurio-registry-api-v3/revisions/ff9684af2aad?raw)