usefulapi

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

Claude

Open Settings → Connectors → Add custom connector
Paste this URL:
https://stream.usefulapi.io/mcp
Authenticate with Stream when prompted

Cursor · VS Code · Windsurf · Cline

Add to your MCP config, then reload & authorize:

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

live15 toolsFree 100 tool calls / monthPro $9/mo · $90/yr

Tools 15

Tool	Type	What it does
`stream_get_app`	read	Get app Fetch the Stream app's settings and configured channel types — a good first call to confirm your credentials and discover which channel types are available.
`stream_query_channels`	read	Query channels List and filter channels across the app by a Stream filter (e.g. by type or member), returning each channel's recent state and messages.
`stream_get_channel`	read	Get channel Fetch a single channel's full state — its config, members and most recent messages — by channel type and id.
`stream_search_messages`	read	Search messages Search messages across channels using full-text queries or structured message filters, scoped by a channel filter.
`stream_get_message`	read	Get message Fetch a single message by its id, optionally including it even when it has been soft-deleted.
`stream_get_replies`	read	Get replies Fetch the reply messages within a thread given the parent (thread-root) message id.
`stream_get_reactions`	read	Get reactions List the reactions attached to a specific message, with pagination for messages that have many reactions.
`stream_query_members`	read	Query members List and filter the members of one channel, with optional member filters like name autocomplete and sort order.
`stream_query_users`	read	Query users List and filter users across the app by attributes such as role or id, with sorting and pagination.
`stream_query_threads`	read	Query threads List threads (messages that have replies), optionally scoped to a user's participation and read-state, with a preview of recent replies.
`stream_get_unread_counts`	read	Get unread counts Fetch total and per-channel unread message and mention counts for a single user.
`stream_send_message`	write	Send message Post a new message to a channel, attributed to an existing user id, with optional @mentions.
`stream_send_reaction`	write	Send reaction Add a reaction (such as like or love) to a message, attributed to an existing user id.
`stream_usage_status`	meta	Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter.
`stream_upgrade`	meta	Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED Stream tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Read-only; does not count against the meter.

Pricing

Plan	Price	Limit
Free	$0	100 tool calls / month
Pro	$9/mo · $90/yr	Unlimited

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.