> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.rydhm.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.rydhm.ai/_mcp/server.

# Version history

GET https://api.rydhm.ai/v1/agents/{id}/versions

Needs the experts:read scope. A key without it gets 403 insufficient_scope. Routes not in this reference cannot be called with a key at all (403 not_available_to_api_keys).

Reference: https://docs.rydhm.ai/api-reference/experts/versions/list

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `id` (string, required) — The expert id.

### Query parameters

- `cursor` (integer, optional) — nextCursor from the previous page: the versions older than it.
- `limit` (integer, optional) — How many, 1 to 100 (default 30).

## Response

### 200

OK

- `items` (list of ExpertVersion, required)
- `nextCursor` (integer, required, nullable)
- `latest` (integer, required) — The newest version’s number.

## Errors

### 401 Unauthorized Error

The key is missing, not valid, disabled or expired (error: invalid_api_key, api_key_disabled, api_key_expired).

- `statusCode` (integer, required)
- `message` (string, required)
- `error` (string, optional) — A stable code such as insufficient_scope, expert_not_allowed, rate_limited, plan_limit, payment_required.
- `code` (string, optional) — The stable code on the refusals that carry it here instead of in `error`: stale_edit (409 on an expert save).
- `requestId` (string, optional) — The X-Request-Id of the call, to quote to support.
- `upgradeHint` (ErrorUpgradeHint, optional) — On 402 payment_required and 403 plan_limit: what fixes it.
- `requiredScopes` (list of string, optional) — On 403 insufficient_scope: what the route needs.
- `missingScopes` (list of string, optional)
- `retryAfterSeconds` (integer, optional) — On 429: how long to wait.

### 403 Forbidden Error

The key lacks a scope (insufficient_scope), may not use this expert (expert_not_allowed), or the route is session-only (not_available_to_api_keys).

- `statusCode` (integer, required)
- `message` (string, required)
- `error` (string, optional) — A stable code such as insufficient_scope, expert_not_allowed, rate_limited, plan_limit, payment_required.
- `code` (string, optional) — The stable code on the refusals that carry it here instead of in `error`: stale_edit (409 on an expert save).
- `requestId` (string, optional) — The X-Request-Id of the call, to quote to support.
- `upgradeHint` (ErrorUpgradeHint, optional) — On 402 payment_required and 403 plan_limit: what fixes it.
- `requiredScopes` (list of string, optional) — On 403 insufficient_scope: what the route needs.
- `missingScopes` (list of string, optional)
- `retryAfterSeconds` (integer, optional) — On 429: how long to wait.

### 429 Too Many Requests Error

Rate limited; wait Retry-After seconds.

- `statusCode` (integer, required)
- `message` (string, required)
- `error` (string, optional) — A stable code such as insufficient_scope, expert_not_allowed, rate_limited, plan_limit, payment_required.
- `code` (string, optional) — The stable code on the refusals that carry it here instead of in `error`: stale_edit (409 on an expert save).
- `requestId` (string, optional) — The X-Request-Id of the call, to quote to support.
- `upgradeHint` (ErrorUpgradeHint, optional) — On 402 payment_required and 403 plan_limit: what fixes it.
- `requiredScopes` (list of string, optional) — On 403 insufficient_scope: what the route needs.
- `missingScopes` (list of string, optional)
- `retryAfterSeconds` (integer, optional) — On 429: how long to wait.

## Types

### ExpertVersion

- `number` (integer, required) — The version number, per expert (1, 2, 3…).
- `reason` (enum, required)
  - Allowed values: `create`, `save`, `publish`, `restore`, `baseline`
- `author` (ExpertVersionAuthor, required, nullable) — Who saved it; null for Rydhm itself (a baseline) or a removed member.
- `note` (string, required, nullable)
- `changedFields` (list of string, required)
- `restoredFrom` (integer, required, nullable)
- `createdAt` (datetime, required)
- `snapshot` (map from string to any, optional) — The expert as it was (on the single-version route).

### ErrorUpgradeHint

On 402 payment_required and 403 plan_limit: what fixes it.

- `action` (enum, optional)
  - Allowed values: `top_up`, `upgrade`, `contact`
- `planCode` (string, optional) — The smallest plan that allows it, when action is upgrade.
- `href` (string, optional) — Where to go in the app.

### ExpertVersionAuthor

Who saved it; null for Rydhm itself (a baseline) or a removed member.

- `id` (string, required) — A UUID.
- `name` (string, required)

## Examples

**Response**

```json
{
  "items": [
    {
      "number": 1,
      "reason": "create",
      "author": {
        "id": "string",
        "name": "string"
      },
      "note": "string",
      "changedFields": [
        "string"
      ],
      "restoredFrom": 1,
      "createdAt": "2024-01-15T09:30:00Z",
      "snapshot": {}
    }
  ],
  "nextCursor": 1,
  "latest": 1
}
```

**SDK Code**

```python
import requests

url = "https://api.rydhm.ai/v1/agents/id/versions"

headers = {"Authorization": "Bearer <apiKey>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.rydhm.ai/v1/agents/id/versions';
const options = {method: 'GET', headers: {Authorization: 'Bearer <apiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```