OpenAI Responses API Tool Calling

Overview

You can use this Snap to provide external tools for the model to call, supplying internal data and information for the model's responses.

OpenAI Responses API Tool Calling

Limitations

  • The Previous response ID cannot be used in an organization that enables Zero Data Retention since the response will not be stored. Learn more.
  • Feature availability may vary by model. For instance, some models, such as reasoning models, do not support web search. Learn more

Snap views

Type Description Examples of upstream and downstream Snaps
Input This Snap has one document input view, typically carrying the input message for the OpenAI model.
Output This Snap has exactly two document output views. The first one outputs the full response from the model. The second one outputs the list of tools to call. It includes a JSON argument, whose value is a JSON object derived from converting the string-formatted argument of the model's response tool call.
Learn more about Error handling.

Snap settings

Legend:
  • Expression icon (): Allows using JavaScript syntax to access SnapLogic Expressions to set field values dynamically (if enabled). If disabled, you can provide a static value. Learn more.
  • SnapGPT (): Generates SnapLogic Expressions based on natural language using SnapGPT. Learn more.
  • Suggestion icon (): Populates a list of values dynamically based on your Snap configuration. You can select only one attribute at a time using the icon. Type into the field if it supports a comma-separated list of values.
  • Upload : Uploads files. Learn more.
Learn more about the icons in the Snap settings dialog.
Field/Field set Type Description
Label String

Required. Specify a unique name for the Snap. Modify this to be more appropriate, especially if more than one of the same Snaps is in the pipeline.

Default value: OpenAI Responses API Tool Calling

Example: Tool Caller
Model name String/Expression/ Suggestion

Required. The model name to use for the responses API.

Default value: N/A

Example: gpt-4o
Message String/Expression

Required. Specify the message string or list of input items to send as input to the responses endpoint.

Default value: N/A

Example: $inputMessage
Tool payload String/Expression

Required. Specify the list of tool definitions to send to the model.

Default value: N/A

Example: $specifiedTools
Previous response ID String/Expression

The unique ID of the previous response to the model. Use this to create multi-turn conversations.

Default value: N/A

Example:

resp_685bd91eed58819898936ac8a0ba237e05433b6b77d284a7

(expression) $prev_resp_id
Output handling

Settings for response output management.
Store Checkbox/Expression

Indicate whether to store or not store the generated model response.

Default status: Selected
Built-in tools

Configure the built-in tools to be used
Score threshold Decimal/Expression

The score threshold for the file search, a number between 0 and 1. Numbers closer to 1 will attempt to return only the most relevant results, but may return fewer results.

Default value: N/A

Example: 0.7
Web search Checkbox/Expression

Select this checkbox to allow model to search the web for the latest information.

Default status: Deselected
Web search type String/Expression/ Suggestion

Required. Select the type of web search tool.

Default value: web_search_preview Example: web_search_preview
Search context size Dropdown list/Expression

High level guidance for the amount of context window space to use for the search.

  • medium
  • low
  • high
Default value: medium Example: medium
File search Checkbox/Expression

Select this checkbox to allow the model to search the files.

Default status: Deselected
User location String/Expression

An approximate user location to refine search results based on geography.

Default value: N/A

Example:
Include file search results Checkbox/Expression

Select this checkbox to include the file search results in the response.

Default status: Deselected
Maximum number of file search results Integer/Expression

The maximum number of file search results to return. This number should be between 1 and 50

Default value: N/A

Example: 25
Ranker String/Expression

The ranker to use for the file search.

Default value: auto

Example: auto

Filters String/Expression

The filters to apply to the file search.

Default value: N/A

Example: (expression) {"type": "eq", "key": "Region", "value": "US"}
Vector store IDs String/Expression

Required. The IDs of the vector stores to be used.

Default value: N/A

Example: "vs_682c22b077ac8191b5d671adda994d11"
Advanced tool configuration

Modify the tool call settings to guide the model responses and optimize output processing.
Tool choice Dropdown list/Expression

Controls which (if any) tool is called by the model.

  • SPECIFY A BUILT-IN TOOL
  • REQUIRED
  • SPECIFY A FUNCTION
  • AUTO
  • NONE
Default value: AUTO

Example: AUTO

Function name String/Expression

Required. The name of the function to force the model to call.

Default value: N/A

Example: get_weather
Built-in tool Dropdown list/Expression

Required. Select built-in tool to be used

  • WEB SEARCH
  • FILE SEARCH

Default value: N/A

Example: Web Search
Parallel tool call Checkbox/Expression

Select this checkbox to enable parallel tool calling.

Default status: Selected
Model parameters

Parameters used to tune the model runtime.
Temperature Decimal/Expression

The sampling temperature to use, a decimal value between 0 and 2. If left blank, the endpoint uses its default value.

Default value: N/A

Example: 0.2
Reasoning effort Dropdown list/Expression

Required. Reasoning effort level for the selected model. Currently supported only for OpenAI o-series models.

  • medium
  • low
  • high
Default value: medium

Example: medium

Reasoning summary Dropdown list/Expression

A summary of the reasoning performed by the model. This can be useful for debugging and understanding the model's reasoning process.

  • none
  • auto
  • detailed
Default value: none

Example: none

Maximum output tokens Integer/Expression

Maximum number of tokens that can be generated for a response, including visible output tokens and reasoning tokens. If left blank, the endpoint uses its default value.

Default value: N/A

Example: 200
Top P Decimal/Expression

Nucleus sampling value, a decimal value between 0 and 1. If left blank, the endpoint uses its default value.

Default value: N/A

Example: 0.2
Advanced prompt configurations

Modify the prompt settings to guide the model responses and optimize output processing.
Instructions String/Expression

Specify the persona for the model to adopt in its responses. When using along with previous response ID, the instructions from a previous response will not be carried over to the next response.

Default value: N/A

Example: Provide concise, bullet‑point answers
JSON mode Checkbox/Expression
Select this checkbox to enable the model to generate strings that can be parsed into valid JSON objects. The output includes the parsed JSON object in a field named json_output that contains the data.
Note:
  • This field does not support input values from the upstream Snap.
  • When you select this checkbox, ensure the word JSON is included in the prompt, either in the Prompt field or the System prompt field. Otherwise, the Snap results in an error.
    OpenAI Chat Completions Prompt field with JSON enabled

  • When you select JSON mode, the Continuation requests checkbox is hidden, as this feature is not supported in JSON mode.

Default status: Deselected
Advanced response configurations

Modify the response settings to customize the responses and optimize output processing.
Structured outputs String/Expression

Ensures the model always returns outputs that match your defined JSON Schema.

Default value: N/A

Example: $response_format.json_schema
Truncation Dropdown list/Expression

The truncation strategy to use for the model response.

  • disabled
  • auto
Default value: disabled Example: disabled
Include reasoning encrypted content Checkbox/Expression

Select this checkbox to include an encrypted version of reasoning tokens in the output. This allows reasoning items to be used when store is false.

Default status: Deselected
Snap execution Dropdown list
Choose one of the three modes in which the Snap executes. Available options are:
  • Validate & Execute: Performs limited execution of the Snap and generates a data preview during pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during pipeline runtime.
  • Execute only: Performs full execution of the Snap during pipeline execution without generating preview data.
  • Disabled: Disables the Snap and all Snaps that are downstream from it.

Default value: Validate & Execute

Example: Execute only