# Current topics and shared cited-document edges. Connections do not establish causation.

listPublicTopics · GET /data/topics/index.json

## Endpoint
`GET /data/topics/index.json`

No account required. Reading dates mark analysis revisions, not policy effective dates. Preserve source URLs, coverage notes and the AI-assisted interpretation label. Citation additions/removals do not mean publications/retractions.

## Authentication
```json
[]
```
An empty security requirement means this operation does not declare authentication. Read operation notes for entitlement and protocol-method requirements.

## Parameters
No parameters declared by the specification.

## Responses and errors
| HTTP status | Meaning |
| --- | --- |
| 200 | Current topics and shared cited-document edges. Connections do not establish causation. |
| 404 | No published topic or revision at this URL. |

## Response examples
No response example is supplied by OpenAPI for this operation. The complete response schemas are preserved below; use an actual response for observed values.

## Retry guidance
See [errors and retries](/docs/api/overview#errors-and-retries). Honor operation-specific response headers. A POST may create state; do not replay it automatically.

## Complete operation contract
The expanded contract below includes all parameter constraints, response headers, schemas and examples from OpenAPI.

```json
{
  "path": "/data/topics/index.json",
  "method": "GET",
  "parameters": [],
  "operationId": "listPublicTopics",
  "summary": "Current topics and shared cited-document edges. Connections do not establish causation.",
  "tags": [
    "data"
  ],
  "security": [],
  "description": "No account required. Reading dates mark analysis revisions, not policy effective dates. Preserve source URLs, coverage notes and the AI-assisted interpretation label. Citation additions/removals do not mean publications/retractions.",
  "responses": {
    "200": {
      "description": "Current topics and shared cited-document edges. Connections do not establish causation.",
      "content": {
        "application/json": {
          "schema": {
            "type": "object"
          }
        }
      }
    },
    "404": {
      "description": "No published topic or revision at this URL."
    }
  },
  "x-codeSamples": [
    {
      "lang": "curl",
      "label": "curl",
      "source": "curl -s 'https://china-snapshot.com/data/topics/index.json'"
    }
  ]
}
```