CustomToolCallInputDeltaEvent Type | OpenRouter TypeScript SDK | OpenRouter

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Event emitted when a custom tool call’s freeform input is being streamed. Mirrors response.function_call_arguments.delta but for custom tools whose input is opaque text rather than JSON arguments.

Example Usage

1 import { CustomToolCallInputDeltaEvent } from "@openrouter/sdk/models";
2 
3 let value: CustomToolCallInputDeltaEvent = {
4   delta: "<value>",
5   itemId: "<id>",
6   outputIndex: 992628,
7   sequenceNumber: 0,
8   type: "response.custom_tool_call_input.delta",
9 };

Fields

Field	Type	Required	Description
`delta`	string	✔️	N/A
`itemId`	string	✔️	N/A
`outputIndex`	number	✔️	N/A
`sequenceNumber`	number	✔️	N/A
`type`	”response.custom_tool_call_input.delta”	✔️	N/A