PageOne Travel AI Agent API - PageOne Travel B2B API

Overview

Version: v1
Endpoints: 3
Base path: /api/partner/v1/core-chat
Source: Migrated from https://www.brek.ai/docs/partner-core-chat on February 19, 2026.

Onboard now action

Contact leo@pageonelab.com.
Brek will issue your partner API key (and sandbox base URL).
Start testing with Postman or your own HTTP client.

Authentication (API key usage)

Send one of these headers on every request (POST /sessions, POST /events, GET /sessions/{sessionId}):

x-partner-api-key: <partner_api_key> (recommended)
Authorization: Bearer <partner_api_key>
api-key: <partner_api_key>

Example:

curl "$BREK_BASE_URL/api/partner/v1/core-chat/sessions" \
  -H "x-partner-api-key: $BREK_PARTNER_API_KEY" \
  -H "content-type: application/json" \
  -d '{"actor":{"actorId":"partner_user_001"}}'

POST /events uses the same auth header:

curl "$BREK_BASE_URL/api/partner/v1/core-chat/events" \
  -H "x-partner-api-key: $BREK_PARTNER_API_KEY" \
  -H "content-type: application/json" \
  -d '{"sessionId":"sess_xxx","text":"find me a refundable vegas hotel"}'

Base path

/api/partner/v1/core-chat

Common response headers

x-request-id: request trace ID
x-ratelimit-limit
x-ratelimit-remaining
x-partner-id

POST `/sessions`

Creates a new partner chat session. Input variables (field | definition | required):

actor.actorId | Stable end-user ID in your partner system (for profile/history continuity). | Yes
actor.timezoneOffsetMinutes | End-user timezone offset in minutes (for date parsing like “tomorrow”). | No
channel.workspaceId | Optional partner workspace/group identifier used for routing/analytics. | No
conversation.channelId | Optional conversation bucket key from your client app. | No
conversation.id | Optional explicit conversation ID for your own traceability. | No
conversation.threadTs | Optional explicit thread key for your own thread model. | No

Auth header:

x-partner-api-key: <partner_api_key> (or Authorization: Bearer <partner_api_key>, or api-key)

Request body:

{
  "actor": {
    "actorId": "partner_user_001",
    "timezoneOffsetMinutes": -480
  },
  "channel": {
    "workspaceId": "partner-workspace"
  },
  "conversation": {
    "channelId": "partner-chat"
  }
}

Example response (201):

{
  "data": {
    "sessionId": "sess_1771456953407_g7p6233d",
    "tenantId": "demo-tenant",
    "channel": {
      "type": "partner_api",
      "workspaceId": "partner-workspace"
    },
    "conversation": {
      "id": "partner-chat:sess_1771456953407_g7p6233d",
      "channelId": "partner-chat",
      "threadTs": "sess_1771456953407_g7p6233d"
    },
    "actor": {
      "actorId": "partner_user_001",
      "timezoneOffsetMinutes": -480
    },
    "createdAt": "2026-02-18T23:22:33.407Z",
    "updatedAt": "2026-02-18T23:22:33.407Z",
    "events": []
  }
}

POST `/events`

Sends one event into an existing session. Input variables (field | definition | required):

sessionId | Session ID returned by POST /sessions. | Yes
actor.actorId | Optional safety check. If provided, it must match the actor bound to the session. | No
text | Natural-language user message. | Yes for natural-language flow
kind | Explicit event type (for action-based integrations). | No (but required for explicit action-kind calls)
payload | Structured action payload (for example optionId, bookingId, paymentMethodId). | No (but required by certain kind values)
idempotencyKey | Client idempotency token to make write retries safe. | No (required for write kinds listed below)

Auth header:

x-partner-api-key: <partner_api_key> (or Authorization: Bearer <partner_api_key>, or api-key)

Request body:

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "actor": { "actorId": "partner_user_001" },
  "text": "Seattle Mar 20-23 1 room refundable",
  "payload": {},
  "idempotencyKey": "demo:sess_1771456953407_g7p6233d:search:001"
}

Integration rule:

Persist sessionId by actorId on your side. Reusing one session across different actors will mix user state.

kind behavior:

Optional for normal natural-language messages.
Required only when you explicitly call action kinds (for example: action_book_option, action_cancel_booking).

Partner UI mapping:

data.result.status = action/state code for your UI logic.
data.result.message.text = assistant text to render to end users.
data.result.artifacts = structured payload (shortlist, payment setup URL, booking confirmation, etc.).

Idempotency key is required for write kinds:

command_book_by_option_id
action_book_option
action_confirm_price_change
action_confirm_payment_card
action_cancel_booking

Example response (200):

{
  "data": {
    "sessionId": "sess_1771456953407_g7p6233d",
    "event": {
      "id": "evt_1771456966998",
      "kind": "search_query"
    },
    "result": {
      "traceId": "demo-tenant:partner_api:partner-chat:sess_1771456953407_g7p6233d:evt_1771456966998",
      "status": "shortlist",
      "message": {
        "text": "I found options matching your request in Seattle."
      },
      "artifacts": {
        "shortlist": [
          {
            "optionId": "3d49d4cb-22b1-4963-9280-508fb1190f5c",
            "name": "Inn at the Market",
            "pricePerNight": 276.66,
            "totalPrice": 980.67,
            "currency": "USD",
            "refundable": true,
            "rating": 4.8
          }
        ]
      }
    }
  }
}

GET `/sessions/{sessionId}`

Returns current session snapshot and event history. Input variables (field | definition | required):

sessionId (path) | Existing session ID. Must belong to your partner tenant. | Yes

Auth header:

x-partner-api-key: <partner_api_key> (or Authorization: Bearer <partner_api_key>, or api-key)

Example response (200):

{
  "data": {
    "sessionId": "sess_1771456953407_g7p6233d",
    "tenantId": "demo-tenant",
    "actor": {
      "actorId": "partner_user_001"
    },
    "events": [
      {
        "eventId": "evt_1771456966998",
        "kind": "search_query",
        "resultStatus": "shortlist",
        "recordedAt": "2026-02-18T23:22:46.998Z"
      }
    ]
  }
}

Golden path example (search -> booking intent -> guest name -> payment setup -> done -> booked)

The sequence below was captured from a real sandbox run on February 18, 2026.

Step 0: Create session

Variables for this step (field | definition | required):

actor.actorId | Stable end-user ID in your partner system. | Yes
actor.timezoneOffsetMinutes | User timezone offset in minutes. | No
channel.workspaceId | Optional partner workspace/group identifier. | No
conversation.channelId | Optional conversation key in your client app. | No

Input (POST /sessions):

{
  "actor": {
    "actorId": "partner_golden_user_done",
    "timezoneOffsetMinutes": -420
  },
  "channel": {
    "workspaceId": "partner-demo"
  },
  "conversation": {
    "channelId": "partner-chat"
  }
}

Output (201):

{
  "data": {
    "sessionId": "sess_1771456953407_g7p6233d",
    "tenantId": "demo-tenant",
    "channel": {
      "type": "partner_api",
      "workspaceId": "partner-demo"
    },
    "conversation": {
      "id": "partner-chat:sess_1771456953407_g7p6233d",
      "channelId": "partner-chat",
      "threadTs": "sess_1771456953407_g7p6233d"
    },
    "actor": {
      "actorId": "partner_golden_user_done",
      "timezoneOffsetMinutes": -420
    }
  }
}

Step 1: Search request

Variables for this step (field | definition | required):

sessionId | Session ID returned in Step 0. | Yes
text | Natural-language search request from the user. | Yes
idempotencyKey | Retry-safe dedupe key from partner side. | Recommended

Input (POST /events):

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "text": "find me a las vegas hotel from 5/15 to 5/16 that is cheap and refundable",
  "idempotencyKey": "demo:sess_1771456953407_g7p6233d:search:001"
}

Output (status=shortlist):

{
  "data": {
    "result": {
      "status": "shortlist",
      "message": {
        "text": "I found options matching your request in Las Vegas. Matched core filters: refundable only. Sorted by lowest total price first."
      },
      "artifacts": {
        "shortlist": [
          {
            "optionId": "1375108c-d021-4e45-a54a-e11ef553af07",
            "name": "Branding Iron Motel",
            "pricePerNight": 98.11,
            "totalPrice": 110.26,
            "currency": "USD",
            "refundable": true,
            "rating": 2,
            "distanceTo": "2.7 miles from Las Vegas",
            "detailsUrl": "https://portal.example.com/book/hotel/69450b14fc4f2dc72399a9ba?..."
          }
        ]
      }
    }
  }
}

Step 2: User asks to book option 1

Variables for this step (field | definition | required):

sessionId | Session ID returned in Step 0. | Yes
text | User booking-intent message. | Yes

Input (POST /events):

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "text": "can you help me book option 1"
}

Output (status=guest_name_required):

{
  "data": {
    "result": {
      "status": "guest_name_required",
      "message": {
        "text": "Before I book, I need the check-in guest name for room 1: first name + last name exactly as shown on an official ID."
      }
    }
  }
}

Step 3: User provides guest name

Variables for this step (field | definition | required):

sessionId | Session ID returned in Step 0. | Yes
text | Guest-name message (for example: “guest name is John Doe”). | Yes

Input (POST /events):

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "text": "guest name is John Doe"
}

Output (status=payment_setup_required):

{
  "data": {
    "result": {
      "status": "payment_setup_required",
      "message": {
        "text": "No payment method is set up for this account. Please add a card before booking. Set up here: https://portal.example.com/portal/payment?token=psu_1771456992743_e2634ddd\nPlease reply \"Done\" once you finished set up."
      },
      "artifacts": {
        "payment": {
          "setupUrl": "https://portal.example.com/portal/payment?token=psu_1771456992743_e2634ddd"
        }
      }
    }
  }
}

Step 3.5: User finishes card setup in payment portal

This happens outside Partner Core Chat endpoints (in Brek payment stack), but shown here for end-to-end clarity. Variables for this step (field | definition | required):

portalToken | Payment setup token returned in artifacts.payment.setupUrl. | Yes
paymentMethodId | Payment method token from payment provider. | Yes
cardBrand | Card brand (for example visa). | Yes
cardLast4 | Last 4 digits of card. | Yes
expMonth | Card expiration month. | Yes
expYear | Card expiration year. | Yes
setAsDefault | Whether to set this card as default. | No

Input (POST /v1/hotel-ea/payment-methods/attach on Brek payment backend):

{
  "portalToken": "psu_1771456992743_e2634ddd",
  "paymentMethodId": "pm_card_visa",
  "cardBrand": "visa",
  "cardLast4": "4242",
  "expMonth": 12,
  "expYear": 2030,
  "setAsDefault": true
}

Output:

{
  "data": {
    "status": "ATTACHED",
    "paymentMethod": {
      "paymentMethodId": "pm_card_visa",
      "brand": "visa",
      "last4": "4242",
      "expMonth": 12,
      "expYear": 2030
    }
  },
  "message": "success"
}

Step 4: User returns to chat and says “Done”

Variables for this step (field | definition | required):

sessionId | Session ID returned in Step 0. | Yes
text | Completion message after card setup (for example: “Done”). | Yes

Input (POST /events):

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "text": "Done"
}

Output (status=payment_confirmation_required):

{
  "data": {
    "result": {
      "status": "payment_confirmation_required",
      "message": {
        "text": "I found your updated card: VISA **** 4242. Use this card to continue booking?"
      },
      "artifacts": {
        "payment": {
          "paymentMethodId": "pm_card_visa",
          "cardBrand": "visa",
          "cardLast4": "4242",
          "expMonth": 12,
          "expYear": 2030
        }
      }
    }
  }
}

Step 5: User confirms payment and booking

Variables for this step (field | definition | required):

sessionId | Session ID returned in Step 0. | Yes
text | Confirmation message (for example: “yes, use this card”). | Yes

Input (POST /events):

{
  "sessionId": "sess_1771456953407_g7p6233d",
  "text": "yes, use this card"
}

Output (status=booked + confirmationUrl):

{
  "data": {
    "result": {
      "status": "booked",
      "message": {
        "text": "Booked Branding Iron Motel."
      },
      "artifacts": {
        "booking": {
          "bookingId": "A1WDDC",
          "confirmationBookingId": "699649fae0ee4bb440ddccf7",
          "hotelName": "Branding Iron Motel",
          "totalPrice": 110.26,
          "currency": "USD",
          "confirmationUrl": "https://portal.example.com/my-bookings/699649fae0ee4bb440ddccf7",
          "cancelPolicy": "Refundable until 2026-05-15T01:00:00Z"
        }
      }
    }
  }
}

More scenarios and outputs

Scenario A: user says “Done” but card is not attached yet

Variables for this scenario (field | definition | required):

sessionId | Existing session ID. | Yes
text | Completion message (for example: “Done”). | Yes

Input (POST /events):

{
  "sessionId": "sess_1771457039985_uf2ydexs",
  "text": "Done"
}

Output (status=payment_setup_required again):

{
  "data": {
    "result": {
      "status": "payment_setup_required",
      "message": {
        "text": "Sure, you can update your payment method here: https://portal.example.com/portal/payment?token=psu_1771457050204_3d35ca69\nAfter setup, reply \"done\" in this thread and I will verify the new card before booking."
      },
      "artifacts": {
        "payment": {
          "setupUrl": "https://portal.example.com/portal/payment?token=psu_1771457050204_3d35ca69"
        }
      }
    }
  }
}

Scenario B: user already has a saved card

Variables for this scenario (field | definition | required):

sessionId | Existing session ID. | Yes
text | Guest-name message after booking intent. | Yes

Input (POST /events, after guest name):

{
  "sessionId": "sess_1771457174011_gavkkfv5",
  "text": "guest name is Jane Doe"
}

Output (status=payment_confirmation_required, no setup URL):

{
  "data": {
    "result": {
      "status": "payment_confirmation_required",
      "message": {
        "text": "Are you ok to pay with VISA **** 4242?"
      },
      "artifacts": {
        "payment": {
          "paymentMethodId": "pm_card_visa",
          "cardBrand": "visa",
          "cardLast4": "4242",
          "expMonth": 12,
          "expYear": 2030
        }
      }
    }
  }
}

Scenario C: user declines payment confirmation

Variables for this scenario (field | definition | required):

sessionId | Existing session ID. | Yes
text | Decline message (for example: “no”). | Yes

Input (POST /events):

{
  "sessionId": "sess_1771457174011_gavkkfv5",
  "text": "no"
}

Output:

{
  "data": {
    "result": {
      "status": "error",
      "message": {
        "text": "No problem. I will not charge this card or continue this booking."
      }
    }
  }
}

Error responses

Missing API key (401):

{
  "success": false,
  "error": "Missing partner API key.",
  "code": "missing_partner_api_key",
  "details": null,
  "requestId": "d813d7e3-ba0b-4a97-899d-0847590d7560"
}

Invalid API key (403):

{
  "success": false,
  "error": "Invalid partner API key.",
  "code": "invalid_partner_api_key",
  "details": null,
  "requestId": "c75e34ff-aa06-4393-ae7d-cf1d31c3af25"
}

Missing idempotency key for write action (400):

{
  "success": false,
  "error": "idempotencyKey is required for kind=action_book_option",
  "requestId": "2a5ea99c-9884-448f-a442-35a883b64b31"
}

Unknown session (404):

{
  "success": false,
  "error": "session_not_found",
  "details": {
    "error": "session_not_found"
  },
  "requestId": "ca6fc510-87ef-434a-a945-ba19ed0e118f"
}

Retry guidance

Retry 429 and 5xx with exponential backoff.
Reuse the same idempotencyKey when retrying write actions.
Log x-request-id for every failed request.

Security requirements

Keep partner API keys server-side only.
Use HTTPS/TLS for all requests.
Do not send raw PCI card data in chat payloads.

Documentation Index

​Overview

​Onboard now action

​Authentication (API key usage)

​Base path

​Common response headers

​POST /sessions

​POST /events

​GET /sessions/{sessionId}

​Golden path example (search -> booking intent -> guest name -> payment setup -> done -> booked)

​Step 0: Create session

​Step 1: Search request

​Step 2: User asks to book option 1

​Step 3: User provides guest name

​Step 3.5: User finishes card setup in payment portal

​Step 4: User returns to chat and says “Done”

​Step 5: User confirms payment and booking

​More scenarios and outputs

​Scenario A: user says “Done” but card is not attached yet

​Scenario B: user already has a saved card

​Scenario C: user declines payment confirmation

​Error responses

​Retry guidance

​Security requirements

Overview

Onboard now action

Authentication (API key usage)

Base path

Common response headers

POST `/sessions`

POST `/events`

GET `/sessions/{sessionId}`

Golden path example (search -> booking intent -> guest name -> payment setup -> done -> booked)

Step 0: Create session

Step 1: Search request

Step 2: User asks to book option 1

Step 3: User provides guest name

Step 3.5: User finishes card setup in payment portal

Step 4: User returns to chat and says “Done”

Step 5: User confirms payment and booking

More scenarios and outputs

Scenario A: user says “Done” but card is not attached yet

Scenario B: user already has a saved card

Scenario C: user declines payment confirmation

Error responses

Retry guidance

Security requirements