Your account · MCP TOOL

add_favorite

Save an app, creative or keyword to your watchlist.

Set up your assistant · Authentication and errors

When to use it

Change the connected user’s watchlist with mcp:user approval or an existing personal token. kind controls ID validation; folderId must come from an existing folder. Repeating an add is idempotent.

Parameters

Name	Type	Required	Default	Allowed values	Description
`kind`	string	No	`"apps"`	apps, ads, keywords	Saved resource kind.
`id`	string	Yes	`—`	—	app id ("ios:284882215"), ad id ("meta:123") or the keyword itself — validated against `kind` Minimum length: 1. Maximum length: 300.
`label`	string	No	`—`	—	display name; the app or keyword name is a good choice Maximum length: 300.
`folderId`	string	No	`—`	—	an existing folder id from list_favorites Minimum length: 1. Maximum length: 80. Pattern: ^[A-Za-z0-9._:-]{1,80}$.

Defaults and constraints come from the published Zod input schema. “—” means no schema default or no enum restriction. Use JSON values of the listed type; additional handler rules are described above.

Example prompts

Save Facebook to my app watchlist with the label Facebook.

Example call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "add_favorite",
    "arguments": {
      "kind": "apps",
      "id": "ios:284882215",
      "label": "Facebook"
    }
  }
}

Example result

Illustrative, abridged JSON-RPC result. Only selected fields are shown; empty arrays illustrate a response with no rows. These are not current catalog observations. Parse the JSON inside content[].text.

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "content": [
      {
        "type": "text",
        "text": "{\"ok\":true,\"count\":1}"
      }
    ]
  }
}

Free vs paid results

Saving your own watchlist entry works on every plan and keeps its identity. The result is a mutation acknowledgement, not a revenue profile.

Paid access does not fill coverage gaps or unknown values. Returned plan metadata and lock notes explain redaction where applicable. Read the full Free data policy.

Rate limits and usage credit

Plan	Calls per tool / day	All tools / week
Free	5	50
Basic	100	700
Pro	300	2,500

Days reset at 00:00 UTC. The combined ISO week resets Monday at 00:00 UTC. Every served tool call counts, including cached reads. Failed or refused calls are released along with any charge. Compare plans.

After either allowance, Basic and Pro can opt in to pay $0.02 in usage credit per call to add_favorite. A call exceeding both windows is charged once. Free is refused past its allowances; paid plans without opt-in or enough credit are also refused with HTTP 402 / JSON-RPC -32004.

Credential request throttles and, for live keyword work, store-work throttles also apply. Follow retry instructions in the error reference.