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Send to shared thread
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Send to Shared Thread

Posts a message to the live-shared conversation behind a share link, as the recipient who joined via this slug — the slug-scoped twin of Create a Response for a participant who is not the owner (and may be in a different organization). It accepts the same request body and returns the same response: an SSE event stream when stream is true, otherwise a single JSON response.

Allowed only when the link's access_level is live (a view or fork slug returns 403); an unknown or unauthorized link returns 404. The posted message is attributed to the caller, and the turn runs under the shared thread's organization. Any thread_id in the body is ignored — the slug determines the target thread.

POSThttps://api.aitronos.com/v1/shared-threads/{slug}/response

Authentication

Requires user authentication. Authenticate with a Bearer token or x-api-key header. Native EventSource clients that cannot set an Authorization header may pass the token via the token query param (streaming only).

Path Parameters

slug string required

The share-link slug, taken from the share URL.

Query Parameters

token string optional

Access token for clients that cannot set an Authorization header (native EventSource). Ignored when a header credential is present.

Body Parameters

The body is identical to Create a Response. The most common fields:

inputs array required

The conversation inputs for this turn — a list of message objects (role, content).

stream boolean optional

When true, returns an SSE event stream; otherwise a single JSON response. Defaults to false.

thread_id string optional

Ignored on this endpoint — the target thread is always the one the slug resolves to.

mention_mode string optional

Routes the @-tags in this message; see Create a Response for the accepted IDs. Whether the assistant answers is decided by the slug's thread, not by the thread_id in the body, and that thread already exists — so this field never changes the thread's assistant participation here. A thread created in conversation mode stays a group chat: an untagged message posts without an assistant turn, and tagging an assistant pulls it in for that turn.

Returns

When stream is false, a single JSON response describing the assistant's reply (same shape as Create a Response). When stream is true, a text/event-stream response carrying the same SSE event sequence as the owner send.

Code Examples

cURL

curl -X POST "https://api.aitronos.com/v1/shared-threads/abc123slug/response" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "inputs": [{"role": "user", "content": "Let'\''s add a rollback step."}],
    "stream": false
  }'

Python SDK

from aitronos import Aitronos

client = Aitronos(api_key="", token="YOUR_TOKEN")
result = client.threads.shared.respond(
    slug="abc123slug",
    inputs=[{"role": "user", "content": "Let's add a rollback step."}],
    stream=False,
)
print(result)

Python (requests)

import requests

response = requests.post(
    "https://api.aitronos.com/v1/shared-threads/abc123slug/response",
    headers={"Authorization": "Bearer YOUR_TOKEN"},
    json={
        "inputs": [{"role": "user", "content": "Let's add a rollback step."}],
        "stream": False,
    },
)
print(response.json())

JavaScript

const response = await fetch(
  "https://api.aitronos.com/v1/shared-threads/abc123slug/response",
  {
    method: "POST",
    headers: {
      Authorization: "Bearer YOUR_TOKEN",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      inputs: [{ role: "user", content: "Let's add a rollback step." }],
      stream: false,
    }),
  },
);
console.log(await response.json());

Response Examples

Success (200) — non-streaming

{
  "success": true,
  "thread_id": "thread_5f8c2a1b9d4e4c3f8a7b6c5d4e3f2a1b",
  "response": [{"type": "text", "text": "Added a rollback step before the deploy."}],
  "response_id": "resp_8a7b6c5d",
  "stop_reason": "end_turn"
}

Error — Link does not grant live access (403)

{
  "success": false,
  "error": {
    "code": "INSUFFICIENT_PERMISSIONS",
    "message": "This share link does not grant live co-working access",
    "system_message": "Insufficient permissions",
    "type": "authorization_error",
    "status": 403,
    "details": {
      "link_id": "slink_2b1c3d4e5f6a7b8c9d0e1f2a3b4c5d6e",
      "access_level": "view"
    },
    "trace_id": "...",
    "timestamp": "..."
  }
}

Error — Link not found or not authorized (404)

{
  "success": false,
  "error": {
    "code": "RESOURCE_NOT_FOUND",
    "message": "That share link could not be found.",
    "system_message": "Share link unresolved for user",
    "type": "client_error",
    "status": 404,
    "details": {},
    "trace_id": "...",
    "timestamp": "..."
  }
}
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