action telnyx_get_telephony_credential { label: "Get a credential" description: "Get the details of an existing On-demand Credential." provider: telnyx method: GET path: "/telephony_credentials/{id}" encoding: json input: { type: "object" properties: { id: { type: "string" } } required: ["id"] additionalProperties: false } output: { type: "object" additionalProperties: true } }