MCP server

Stream MCP by usefulapi

io.usefulapi/stream

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Query channels, search messages, and read threads, users and reactions in your Stream Chat app.

Website Source

At a glance

Type

MCP server

Publisher

usefulapi.io (verified by the MCP Registry)

Status

Working at last check

Tools

13

Token cost

About 2,764 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http stream https://stream.usefulapi.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.stream]
url = "https://stream.usefulapi.io/mcp"

Gemini CLI

{"mcpServers":{"stream":{"httpUrl":"https://stream.usefulapi.io/mcp"}}}

Cursor

{"mcpServers":{"stream":{"url":"https://stream.usefulapi.io/mcp"}}}

VS Code

{"servers":{"stream":{"type":"http","url":"https://stream.usefulapi.io/mcp"}}}

Antigravity

agy mcp add stream https://stream.usefulapi.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"stream","server_url":"https://stream.usefulapi.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"stream","server_url":"https://stream.usefulapi.io/mcp"}

Tools

• stream_get_app ~87 tokens
  Fetch the Stream app's settings and configured channel types. Good first call to confirm credentials and discover available channel types. GET /api/v2/app.
• stream_get_channel ~209 tokens
  Fetch a single channel's state (config, members) and its most recent messages. Note: uses Stream's get-or-create endpoint — for an existing channel it reads; if the type/id does not exist it may be created empty. POST /api/v2/chat/channels/{type}/{id}/query.
• stream_get_message ~112 tokens
  Fetch a single message by its id. GET /api/v2/chat/messages/{id}.
• stream_get_reactions ~144 tokens
  List the reactions on a message. GET /api/v2/chat/messages/{id}/reactions.
• stream_get_replies ~137 tokens
  Fetch the reply messages in a thread, given the parent message id. GET /api/v2/chat/messages/{parent_id}/replies.
• stream_get_unread_counts ~102 tokens
  Fetch total and per-channel unread message/mention counts for one user. GET /api/v2/chat/unread.
• stream_query_channels ~348 tokens
  List/filter channels by a Stream query filter. e.g. filter {"type":"messaging"} or {"members":{"$in":["user-1"]}}. Returns channels with recent state. POST /api/v2/chat/channels.
• stream_query_members ~331 tokens
  List/filter the members of one channel. Requires the channel type + id. Optional member filter, e.g. {"name":{"$autocomplete":"jo"}}. GET /api/v2/chat/members.
• stream_query_threads ~249 tokens
  List threads (messages with replies). Server-side calls should pass a user_id to scope thread read-state to that user. POST /api/v2/chat/threads.
• stream_query_users ~276 tokens
  List/filter users in the app. e.g. filter {"role":{"$eq":"admin"}} or {"id":{"$in":["u1"]}}. GET /api/v2/users.
• stream_search_messages ~389 tokens
  Search messages across channels. Scope with a channel filter (filter, e.g. {"type":"messaging"}) plus EITHER a full-text `query` OR a `message_filter` object (e.g. {"text":{"$q":"refund"}}). GET /api/v2/chat/search.
• stream_send_message Sends messages · ~207 tokens
  ⚠️ WRITE: post a new message to a channel, attributed to user_id (must be an existing user in the app). POST /api/v2/chat/channels/{type}/{id}/message.
• stream_send_reaction Sends messages · ~173 tokens
  ⚠️ WRITE: add a reaction (e.g. "like", "love") to a message, attributed to user_id (must be an existing user). POST /api/v2/chat/messages/{id}/reaction.

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