Use the Speak AI MCP server tool list_fields to list all custom fields defined in
the workspace.
What does it do?
List all custom fields defined in the workspace. Each field returns a slug (for
example regulator_comment) alongside its id, name, and type. Put
{{field.<slug>}} in the prompt text you send and Speak substitutes that field’s
value for the media before the model sees it. A slug is unique per company and never
changes when the field is renamed, so prefer it over the field name. A field with no
slug yet resolves by id in the same token.
Parameters
list_fields takes no parameters.
Behaviour
The Speak AI MCP server publishes these behaviour hints for list_fields.
- Only reads data. Does not modify your workspace.
- Does not delete or overwrite existing data.
- Repeating an identical call is safe.
- Stays inside Speak AI. Does not reach other systems.
Related
- Custom fields lists the rest of the Custom fields category.
- Tool reference lists every Speak AI MCP server tool.
- MCP server covers setup, supported clients, and what agents can do once connected.