List a Session thread's events

Pages a primary thread’s condensed Session history or a child thread’s complete history. The page uses Checkfu EventEnvelope values and the same resumable sequence cursor as Session events.

Checkfu support posture: alpha; hosted. Required evidence journey: session-threads. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.

GET /v1/sessions/{session_id}/threads/{thread_id}/events

List a Session thread's events

cURL

curl --request GET \
  --url https://api.checkfu.com/v1/sessions/{session_id}/threads/{thread_id}/events \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>'

200

{
  "data": [
    {
      "id": "<string>",
      "seq": 1,
      "schema_version": 1,
      "created_at": "<string>",
      "type": "user.message",
      "payload": {
        "content": "<string>",
        "authored_by": "<string>",
        "caused_by": {
          "kind": "api",
          "request_id": "<string>"
        },
        "attachments": [
          "<string>"
        ],
        "prompt_integrity": {
          "analyzer_version": "unicode-17.0.0-uts39-r32-checkfu-1",
          "disposition": "accepted_normalization",
          "original_digest": "<string>",
          "findings": [
            {
              "kind": "mixed_script_confusable",
              "utf16_offset": 1,
              "code_point": "<string>",
              "replacement": "<string>",
              "answer_id": "<string>",
              "value_index": 1
            }
          ]
        },
        "connected_runtime": "<string>",
        "run_delivery": "next_run",
        "host_context": {
          "source": "<string>",
          "data": {}
        },
        "surface_scope_id": "<string>"
      },
      "provenance": "wire",
      "presentation": {
        "canonical_type": "<string>",
        "provenance": "wire",
        "known": true,
        "classification": "input",
        "visibility": "default",
        "coalescible": true,
        "notification": "none",
        "milestone": true,
        "terminal": true,
        "summary": "<string>"
      },
      "attested": true
    }
  ],
  "next_page": "<string>",
  "unavailable": [
    {
      "seq": 1,
      "content_class": "message",
      "reason": "shredded",
      "structural_replay": "complete",
      "replay_fact": {
        "version": 1,
        "seq": 1,
        "kind": "state_neutral"
      },
      "prompt_integrity": {
        "analyzer_version": "unicode-17.0.0-uts39-r32-checkfu-1",
        "disposition": "accepted_normalization"
      }
    }
  ]
}

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

checkfu-version · enum<string> · required

Available options: 2026-08-27

Path Parameters

session_id · string · required

Pattern: ^sess_[0-9a-f]{32}$

thread_id · string · required

Pattern: ^sthr_[0-9a-f]{32}$

Query Parameters

limit · integer

Required range: 1 <= x <= 1000

page · string

Maximum string length: 14

Pattern: ^c1_[0-9a-z]+$

after · integer

Required range: 0 <= x <= 9007199254740991

Response

200

application/json

Success

data · object[] · required

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Show child attributes

next_page · string | null · required

unavailable · object[]

Show child attributes