OmniStream MCP

An MCP server that lets AI clients discover and query the OmniStream marketplace, browse APIs, and inspect available operations through a structured tool interface.

GitHub

Documentation

omnistream-mcp

MCP (Model Context Protocol) server for OmniStream. Lets AI assistants discover and call any marketplace API directly.

npx omnistream-mcp

What it does

Exposes the OmniStream marketplace as MCP tools that AI assistants (Claude Desktop, Cursor, Continue, etc.) can call:

Tool	Auth needed	Description
`list_apis`	No	Browse all published APIs
`search_apis`	No	BM25 keyword search
`get_api`	No	Full API details + all endpoints
`list_endpoints`	No	Endpoint list for one API
`call_api`	Yes (OMNI_KEY)	Proxy-call any API endpoint

Why one server instead of one per service

Most MCP servers wrap a single service, so covering ten APIs means installing and configuring ten servers. This one connects your assistant to a whole marketplace: 195+ REST APIs behind a single install and a single key, from Hacker News, Wikipedia and the World Bank to GitHub, Stripe and Anthropic.

Adding an API to the marketplace makes it callable here immediately, with no client update.

Keys stay out of the conversation

Many of the listed APIs are keyless and work the moment you connect. For the ones that need a provider key (bring your own key), you store that key once on OmniStream and the proxy injects it server-side on each call. The assistant only ever holds your Omni key, so an upstream credential is never pasted into a prompt or exposed in a tool result.

Claude Desktop setup

Add to ~/.claude/claude_desktop_config.json:

{
  "mcpServers": {
    "omnistream": {
      "command": "npx",
      "args": ["omnistream-mcp"],
      "env": {
        "OMNI_KEY": "omni_live_your_key_here"
      }
    }
  }
}

Get an Omni key at omnistream.skinvaults.online (free to start).

Cursor / Continue / other MCP clients

Same pattern - set OMNI_KEY as an environment variable and point the client at npx omnistream-mcp.

Environment variables

Variable	Default	Description
`OMNI_KEY`	-	Your Omni API key (required for `call_api`)
`OMNI_GATEWAY`	`https://grid.skinvaults.online`	Gateway base URL (override for self-hosted)

Example AI prompts

With this MCP server connected, you can ask your AI assistant:

"What APIs are available on OmniStream?"
"Search OmniStream for CS2 skin price APIs"
"Get the endpoints for the skinapi API"
"Call skinapi/items-search with q=ak47 and show me the results"

OmniStream - the marketplace this server talks to, with a browsable list of every API, live uptime and a try-it console
omnistream-sdk - the same marketplace from TypeScript or Python
omnistream-go - the Go client

License

MIT