action telnyx_get_mdr_message_body { label: "Fetch message body by id." description: "Fetch Mdr message body " provider: telnyx method: GET path: "/message_detail_records/{id}/message_body" encoding: json input: { type: "object" properties: { id: { type: "string" } } required: ["id"] additionalProperties: false } output: { type: "object" properties: { data: { type: "object" properties: { message_body: { type: "string" description: "Text of the message. This is available only for last 7 days" } record_type: { type: "string" } } } } } }