API Reference

Conversations

Items

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conversations.items.list(conversation_id, **kwargs) -> ConversationCursorPage<ConversationItem>

GET/conversations/{conversation_id}/items

List all items for a conversation with the given ID.

ParametersExpand Collapse

conversation_id: String

after: String

An item ID to list items after, used in pagination.

include: Array[ResponseIncludable]

Specify additional output data to include in the model response. Currently supported values are:

• web_search_call.action.sources: Include the sources of the web search tool call.
• code_interpreter_call.outputs: Includes the outputs of python code execution in code interpreter tool call items.
• computer_call_output.output.image_url: Include image urls from the computer call output.
• file_search_call.results: Include the search results of the file search tool call.
• message.input_image.image_url: Include image urls from the input message.
• message.output_text.logprobs: Include logprobs with assistant messages.
• reasoning.encrypted_content: Includes an encrypted version of reasoning tokens in reasoning item outputs. This enables reasoning items to be used in multi-turn conversations when using the Responses API statelessly (like when the store parameter is set to false, or when an organization is enrolled in the zero data retention program).

limit: Integer

A limit on the number of objects to be returned. Limit can range between 1 and 100, and the default is 20.

order: :asc | :desc

The order to return the input items in. Default is desc.

• asc: Return the input items in ascending order.
• desc: Return the input items in descending order.

ReturnsExpand Collapse

ConversationItem = Message { id, content, role, 3 more } | ResponseFunctionToolCallItem { id, status, created_by } | ResponseFunctionToolCallOutputItem { id, call_id, output, 6 more } | 25 more

A single item within a conversation. The set of possible types are the same as the output type of a Response object.

One of the following:

class Message { id, content, role, 3 more }

A message to or from the model.

class ResponseFunctionToolCallItem { id, status, created_by }

A tool call to run a function. See the function calling guide for more information.

class ResponseFunctionToolCallOutputItem { id, call_id, output, 6 more }

class ResponseFileSearchToolCall { id, queries, status, 2 more }

The results of a file search tool call. See the file search guide for more information.

class ResponseFunctionWebSearch { id, action, status, type }

The results of a web search tool call. See the web search guide for more information.

class ImageGenerationCall { id, result, status, type }

An image generation request made by the model.

class ResponseComputerToolCall { id, call_id, pending_safety_checks, 4 more }

A tool call to a computer use tool. See the computer use guide for more information.

class ResponseComputerToolCallOutputItem { id, call_id, output, 4 more }

class ResponseToolSearchCall { id, arguments, call_id, 4 more }

class ResponseToolSearchOutputItem { id, call_id, execution, 4 more }

class AdditionalTools { id, role, tools, type }

class ResponseReasoningItem { id, summary, type, 3 more }

A description of the chain of thought used by a reasoning model while generating a response. Be sure to include these items in your input to the Responses API for subsequent turns of a conversation if you are manually managing context.

class Program { id, call_id, code, 2 more }

class ProgramOutput { id, call_id, result, 2 more }

class ResponseCompactionItem { id, encrypted_content, type, created_by }

A compaction item generated by the v1/responses/compact API.

class ResponseCodeInterpreterToolCall { id, code, container_id, 3 more }

A tool call to run code.

class LocalShellCall { id, action, call_id, 2 more }

A tool call to run a command on the local shell.

class LocalShellCallOutput { id, output, type, status }

The output of a local shell tool call.

class ResponseFunctionShellToolCall { id, action, call_id, 5 more }

A tool call that executes one or more shell commands in a managed environment.

class ResponseFunctionShellToolCallOutput { id, call_id, max_output_length, 5 more }

The output of a shell tool call that was emitted.

class ResponseApplyPatchToolCall { id, call_id, operation, 4 more }

A tool call that applies file diffs by creating, deleting, or updating files.

class ResponseApplyPatchToolCallOutput { id, call_id, status, 4 more }

The output emitted by an apply patch tool call.

class McpListTools { id, server_label, tools, 2 more }

A list of tools available on an MCP server.

class McpApprovalRequest { id, arguments, name, 2 more }

A request for human approval of a tool invocation.

class McpApprovalResponse { id, approval_request_id, approve, 2 more }

A response to an MCP approval request.

class McpCall { id, arguments, name, 6 more }

An invocation of a tool on an MCP server.

class ResponseCustomToolCall { call_id, input, name, 4 more }

A call to a custom tool created by the model.

class ResponseCustomToolCallOutput { call_id, output, type, 2 more }

The output of a custom tool call from your code, being sent back to the model.

List items

Ruby

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Python

TypeScript

Go

Ruby

Java

CLI Tool

require "openai"

openai = OpenAI::Client.new(api_key: "My API Key")

page = openai.conversations.items.list("conv_123")

puts(page)

{
  "object": "list",
  "data": [
    {
      "type": "message",
      "id": "msg_abc",
      "status": "completed",
      "role": "user",
      "content": [
        {"type": "input_text", "text": "Hello!"}
      ]
    }
  ],
  "first_id": "msg_abc",
  "last_id": "msg_abc",
  "has_more": false
}

Returns Examples

{
  "object": "list",
  "data": [
    {
      "type": "message",
      "id": "msg_abc",
      "status": "completed",
      "role": "user",
      "content": [
        {"type": "input_text", "text": "Hello!"}
      ]
    }
  ],
  "first_id": "msg_abc",
  "last_id": "msg_abc",
  "has_more": false
}