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POST
Call ads.set_words

Authorizations

Authorization
string
header
required

An API key minted at Settings › API & MCP. Send it as Authorization: Bearer <key>. A key carries its holder's own permissions, resolved on every call — revoking a membership closes the key's reach immediately. Keep it in an environment variable (GOOSY_API_KEY), never in a committed file.

Headers

x-request-id
string

Your own id for this request, echoed back and recorded on the audit trail. 1–128 characters from A–Z a–z 0–9 . _ : -, starting with a letter or digit; anything else is replaced by a generated id.

Maximum string length: 128

Body

application/json
creative_id
string<uuid>
required

One ad's id on the board, as the board's tools returned it.

field
enum<string>
required

Which line: headline (the bold line), primary_text (the main text above the picture), description (the line under the headline) or call_to_action (the button's words).

Available options:
headline,
primary_text,
description,
call_to_action
text
string
required

The new line exactly as the person wants it — their words, never a rewrite of them.

Minimum string length: 1
campaign_id
string

The campaign's id. Leave it out to use the campaign the person is looking at.

workspace
string

Which workspace to run in — its slug. Omit to use your default. With more than one reachable workspace and no default, the call is refused and the choices are listed.

Minimum string length: 1

Response

The call was admitted and dispatched. ok says whether the tool succeeded — a refusal the tool itself produced is still a 200, exactly as it is a successful JSON-RPC result over MCP.

The tool ran and answered.

ok
boolean
required
creative_id
string
required
field
enum<string>
required
Available options:
headline,
primary_text,
description,
call_to_action
text
string
required
workspace
string
required

The slug of the workspace this call ran in.

working_in
object
required

Which workspace this call ran in, and how that was decided. Present on every workspace-scoped result.