List Events

GET

sessions

{session_id}

events

List Events

curl --request GET \
  --url http://localhost:38080/v1/sessions/{session_id}/events \
  --header 'X-Api-Key: <api-key>'

const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};

fetch('http://localhost:38080/v1/sessions/{session_id}/events', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://localhost:38080/v1/sessions/{session_id}/events"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-Api-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "data": [
    {
      "type": "user.message",
      "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
      "content": [
        {
          "type": "text",
          "text": "Where is my order #1234?"
        }
      ],
      "processed_at": "2026-03-15T10:00:00Z"
    },
    {
      "type": "agent.message",
      "id": "sevt_011CZkZHPq1jCdq5lbRTjiVnz",
      "content": [
        {
          "type": "text",
          "text": "Let me look up order #1234 for you."
        }
      ],
      "processed_at": "2026-03-15T10:00:00Z"
    }
  ],
  "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo="
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

Every request requires ?beta=true.

Authorizations

X-Api-Key

string

header

default:sk-ant-local-default

required

OMA workspace API key.

Headers

anthropic-version

string

anthropic-beta

string

Path Parameters

session_id

string

required

Path parameter session_id

Query Parameters

beta

enum<boolean>

required

Selects the beta API contract for this endpoint. Must be true.

Available options:

true

limit

integer<int32>

Query parameter for limit

page

string

Opaque pagination cursor from a previous response's next_page.

order

enum<string>

Sort direction for results, ordered by the event's processed_at. Defaults to asc (chronological). ListOrder enum

Available options:

asc,

desc

types[]

string[]

Filter by event type. Values match the type field on returned events (for example, user.message or agent.tool_use). Omit to return all event types.

created_at[gte]

string<date-time>

Return events created at or after this time (inclusive). Compared against the event's processed_at value. A timestamp in RFC 3339 format

created_at[gt]

string<date-time>

Return events created after this time (exclusive). Compared against the event's processed_at value. A timestamp in RFC 3339 format

created_at[lte]

string<date-time>

Return events created at or before this time (inclusive). Compared against the event's processed_at value. A timestamp in RFC 3339 format

created_at[lt]

string<date-time>

Return events created before this time (exclusive). Compared against the event's processed_at value. A timestamp in RFC 3339 format

Response

Successful response (OK)

Paginated list of events for a session.

data

object[]

Events for the session, ordered by processed_at.

A user message event in the session conversation.

Show child attributes

Example:

{
  "type": "user.message",
  "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
  "content": [
    {
      "type": "text",
      "text": "Where is my order #1234?"
    }
  ],
  "processed_at": "2026-03-15T10:00:00Z"
}

Example:

[
  {
    "type": "user.message",
    "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
    "content": [
      {
        "type": "text",
        "text": "Where is my order #1234?"
      }
    ],
    "processed_at": "2026-03-15T10:00:00Z"
  },
  {
    "type": "agent.message",
    "id": "sevt_011CZkZHPq1jCdq5lbRTjiVnz",
    "content": [
      {
        "type": "text",
        "text": "Let me look up order #1234 for you."
      }
    ],
    "processed_at": "2026-03-15T10:00:00Z"
  }
]

next_page

string | null

Opaque cursor for the next page. Null when no more results.

Example:

"page_MjAyNS0wNS0xNFQwMDowMDowMFo="

List Events

curl --request GET \
  --url http://localhost:38080/v1/sessions/{session_id}/events \
  --header 'X-Api-Key: <api-key>'

const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};

fetch('http://localhost:38080/v1/sessions/{session_id}/events', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://localhost:38080/v1/sessions/{session_id}/events"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-Api-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "data": [
    {
      "type": "user.message",
      "id": "sevt_011CZkZGOp0iBcp4kaQSihUmy",
      "content": [
        {
          "type": "text",
          "text": "Where is my order #1234?"
        }
      ],
      "processed_at": "2026-03-15T10:00:00Z"
    },
    {
      "type": "agent.message",
      "id": "sevt_011CZkZHPq1jCdq5lbRTjiVnz",
      "content": [
        {
          "type": "text",
          "text": "Let me look up order #1234 for you."
        }
      ],
      "processed_at": "2026-03-15T10:00:00Z"
    }
  ],
  "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo="
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

Get started

Core API

Managed Agents

Webhooks

Authorizations

Headers

Path Parameters

Query Parameters

Response