Reference

List versions

Saved versions of the configuration, newest first.

REST	`GET /api/v1/agents/{agent_id}/versions`
MCP tool	`list_versions`
Classification	Read (changes nothing)
Scope	`agents:read`
Minimum role on the agent	editor
Confirmation	Not needed
Retry safety	Safe to retry with the same input
Success status	200

What it does

Saved versions of the configuration, newest first. Versions are saved automatically before every API change and on publish, and on request with create_version.

Side effects

None. It only reads.

Inputs

Name	Type	Required	In	Description
`agent_id`	string	yes	path	The agent id (agt_...), from list_agents.
`limit`	integer	no	query	At most 100. Default 20.
`offset`	integer	no	query	Default 0.

Example

REST

curl "https://covo.lanaai.io/api/v1/agents/agt_4edc89bb2964/versions?limit=5" \
  -H "Authorization: Bearer $COVO_TOKEN"

MCP (POST /mcp)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_versions",
    "arguments": {
      "agent_id": "agt_4edc89bb2964",
      "limit": 5
    }
  }
}

Response

Returns an object with items, total, limit and offset. This is a real response, shortened to two items per list.

200 response

{
  "items": [
    {
      "number": 3,
      "label": "Before launch",
      "revision": 7,
      "created_by": "avery@example.test",
      "client": {
        "name": "docs-examples",
        "interface": "rest"
      },
      "created_at": "2026-10-07T20:14:41.903Z"
    },
    {
      "number": 2,
      "label": "Before applying draft \"Spring greeting (final)\"",
      "revision": 6,
      "created_by": "avery@example.test",
      "client": {
        "name": "docs-examples",
        "interface": "rest"
      },
      "created_at": "2026-10-07T20:14:41.891Z"
    }
  ],
  "total": 3,
  "limit": 5,
  "offset": 0
}

Over MCP the same object comes back as the tool result, in structuredContent and as JSON text.

Errors

Status	Code	Meaning
401	`unauthorized`	No token, or it is unknown, revoked or expired. OAuth apps refresh or reconnect.
403	`account_suspended`	The account that owns the token is paused.
403	`insufficient_scope`	The token lacks `agents:read`.
404	`agent_not_found`	Unknown agent, or not reachable with this token.
400	`bad_request`	An input is invalid; `field` names it.
429	`rate_limited`	Wait `Retry-After` seconds.