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List messages in a thread

List all messages in a conversation thread --- **Related endpoints** - `POST /comms/send` — Send a message - `GET /comms/threads` — List conversation threads **Common errors** - `404 resource_missing` — the referenced resource does not exist or is not visible to your key. **Pagination** Offset-based with `limit` (default 25, max 100) and `offset`. The response `pagination` block includes `total` and `hasMore`. See [the pagination guide](/docs/fundamentals/pagination) for SDK auto-paging helpers.

GET
/comms/threads/{threadId}/messages

List all messages in a conversation thread

Related endpoints

  • POST /comms/send — Send a message
  • GET /comms/threads — List conversation threads

Common errors

  • 404 resource_missing — the referenced resource does not exist or is not visible to your key.

Pagination

Offset-based with limit (default 25, max 100) and offset. The response pagination block includes total and hasMore. See the pagination guide for SDK auto-paging helpers.

Authorization

x-api-key<token>

Your RevKeen merchant API key. Create and manage keys in Dashboard → Settings → Developer. Use rk_sandbox_* for staging/test and rk_live_* for production. The same key may be sent as Authorization: Bearer <key> if that suits your HTTP client better. A missing, invalid, expired, or revoked key returns 401 with a WWW-Authenticate: Bearer challenge; a valid key without the required scope returns 403.

In: header

Path Parameters

threadId*string

Thread UUID

Formatuuid

Query Parameters

limit?number

Maximum number of results (1-100)

Range1 <= value <= 100
Default50
offset?|

Number of results to skip

Range0 <= value
Default0

Response Body

application/json

application/json

application/json

application/json

Stuck on an error response? Ask the RevKeen assistant to explain it.
curl "https://api.revkeen.com/v2/comms/threads/00000000-0000-0000-0000-000000000000/messages" \
  -H "x-api-key: $REVKEEN_API_KEY"
{  "messages": [    {      "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",      "conversation_id": "cc71b11a-25cd-4c2d-9950-df2cc38e3407",      "content": "string",      "direction": "string",      "sender_type": "string",      "created_at": "2019-08-24T14:15:22Z"    }  ],  "total": 0,  "limit": 0,  "offset": 0}

Retrieve a checkout session GET

Retrieve a checkout session by its ID. --- **Related endpoints** - `POST /checkout-sessions` — Create a checkout session - `POST /checkout-sessions/{id}/expire` — Expire a checkout session **Common errors** - `401 authentication_error` — missing, invalid, expired, or revoked credential. Codes: `authentication_failed`, `invalid_api_key`, `expired_api_key`, `api_key_revoked`, `session_invalid`, `merchant_required`. Carries a `WWW-Authenticate: Bearer` challenge. - `404 resource_missing` — the referenced resource does not exist or is not visible to your key.

Send a message POST

Send a direct message to a customer via email, SMS, or WhatsApp --- **Related endpoints** - `GET /comms/threads` — List conversation threads - `GET /comms/threads/{threadId}/messages` — List messages in a thread **Common errors** - `400 invalid_request` — malformed payload or failed validation. **Idempotency** Pass an `Idempotency-Key` header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see [the idempotency guide](/docs/fundamentals/idempotency).