Slack

Slack Connect API

The Connect API from Slack — 1 operation(s) for connect.

GitHub OpenAPI

Operations 1

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /rtm.connect Start a Real Time Messaging session · Slack Get Rtm Connect #
Ask an LLM
“What starts a Real Time Messaging websocket session for my bot?”
“Can the RTM session only send presence events for users I subscribe to?”
Tell an agent
Start an RTM session with token {token}.
Connect to RTM with presence subscriptions {presence_sub}, token {token}.

Documentation

📖
Documentation
https://docs.slack.dev/admins
📖
Documentation
https://docs.slack.dev/reference/methods
📖
Documentation
https://docs.slack.dev/authentication
📖
Documentation
https://docs.slack.dev/surfaces/canvases
📖
Documentation
https://docs.slack.dev/apis/web-api/using-the-conversations-api
📖
Documentation
https://docs.slack.dev/workflows/workflow-steps
📖
Documentation
https://docs.slack.dev/surfaces/lists
📖
Documentation
https://docs.slack.dev/authentication/sign-in-with-slack
📖
Documentation
https://docs.slack.dev/legacy/legacy-rtm-api
📖
Documentation
https://docs.slack.dev/workflows
📖
Documentation
https://docs.slack.dev/apis/web-api
📖
APIReference
https://docs.slack.dev/reference/methods
📖
RateLimits
https://docs.slack.dev/apis/web-api/rate-limits

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/slack/refs/heads/main/openapi/slack-connect-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/slack/refs/heads/main/json-schema/slack-message-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/slack/refs/heads/main/json-schema/slack-channel-schema.json

Other Resources

🔗
JSONLD
https://raw.githubusercontent.com/api-evangelist/slack/refs/heads/main/json-ld/slack-context.jsonld

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OpenAPI Specification

slack-connect-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  version: '1.0'
  title: Slack RTM Connect API
  description: The Slack Real Time Messaging (RTM) API lets an app open a WebSocket connection to Slack and receive a live stream of JSON events from a workspacesuch as new messages, edits, reactions, user presence and typing indicators, channel joins, and moreso you can build lowlatency, interactive bots and clients.
tags:
- name: Connect
paths:
  /rtm.connect:
    get:
      tags:
      - Connect
      description: Starts a Real Time Messaging session.
      externalDocs:
        description: API method documentation
        url: https://api.slack.com/methods/rtm.connect
      operationId: getRtmConnect
      parameters:
      - name: token
        in: query
        description: 'Authentication token. Requires scope: `rtm:stream`'
        required: true
        schema:
          type: string
      - name: batch_presence_aware
        in: query
        description: Batch presence deliveries via subscription. Enabling changes the shape of `presence_change` events. See [batch presence](/docs/presence-and-status#batching).
        schema:
          type: boolean
      - name: presence_sub
        in: query
        description: Only deliver presence events when requested by subscription. See [presence subscriptions](/docs/presence-and-status#subscriptions).
        schema:
          type: boolean
      responses:
        '200':
          description: Typical success response
          content:
            application/json:
              schema:
                title: rtm.connect schema
                required:
                - ok
                - self
                - team
                - url
                type: object
                properties:
                  ok:
                    $ref: '#/components/schemas/defs_ok_true'
                  self:
                    type: object
                    additionalProperties: false
                  team:
                    type: object
                    additionalProperties: false
                  url:
                    type: string
                    format: uri
                additionalProperties: false
                description: Schema for successful response from rtm.connect method
              example:
                ok: true
                self:
                  id: U4X318ZMZ
                  name: robotoverlord
                team:
                  domain: slackdemo
                  id: T2U81E2FP
                  name: SlackDemo
                url: wss://...
        default:
          description: Typical error response
          content:
            application/json:
              schema:
                title: rtm.connect error schema
                required:
                - error
                - ok
                type: object
                properties:
                  callstack:
                    type: string
                    description: 'Note: PHP callstack is only visible in dev/qa'
                  error:
                    type: string
                    enum:
                    - not_authed
                    - invalid_auth
                    - account_inactive
                    - token_revoked
                    - no_permission
                    - invalid_arg_name
                    - invalid_array_arg
                    - invalid_charset
                    - invalid_form_data
                    - invalid_post_type
                    - missing_post_type
                    - team_added_to_org
                    - invalid_json
                    - json_not_object
                    - request_timeout
                    - upgrade_required
                    - fatal_error
                  ok:
                    $ref: '#/components/schemas/defs_ok_false'
                additionalProperties: false
                description: Schema for error response from rtm.connect method
              example:
                error: invalid_auth
                ok: false
      security:
      - slackAuth:
        - rtm:stream
      summary: Slack Get Rtm Connect
      x-api-evangelist-processing:
        GenerateOperationSummariesFromPath: true
        PascalCaseOperationSummaries: true
        CaselCaseOperationIds: true
        ChooseTags: true
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK