Use SpecStream in Grok

Add SpecStream to Grok as a custom MCP connector, or to the xAI API as a remote MCP tool. Ask for a list in your own words, approve the price, and get results with their sources.

What you need

A SpecStream account. Start free: $10 of work for 30 days, no card.

The server address is the same for every client:

Server address

https://api.specstream.ai/mcp

Connect

Go to grok.com/connectors, click New Connector, then choose Custom.
Paste the server address, sign in to SpecStream, and review what Grok asks for.
Grok finds SpecStream's tools and uses them when a question needs them.

Or use an API key

Create an API key

Open Agents & API in the workspace and choose API keys.
Choose Create API key. Give it only what the task needs: read, prepare or execute permissions, the projects it may use, an expiry and a spending limit.
Copy the key when it's shown. It isn't shown again.

On the xAI API, add SpecStream as a remote MCP tool in your request's tools, with the key in a header:

Remote MCP tool
{
  "type": "mcp",
  "server_url": "https://api.specstream.ai/mcp",
  "server_label": "specstream",
  "headers": {
    "Authorization": "Bearer YOUR_API_KEY"
  }
}

On a Grok Business or Enterprise plan, a team admin adds the connector before members can use it.

Try it

Once Grok shows SpecStream's tools, ask in your own words:

Use SpecStream to find every company that filed to raise $5M or more in the last 30 days, with the amount and the filing. Show me the price first.

SpecStream reads the request back and gives you the price. Nothing is spent until you approve a maximum, and you pay only for the matches, each with its source.

Set access and spending limits

An agent works on your account, with the same balance, permissions and spending limits you have. Give its key the least it needs: read, prepare or execute permissions, project limits, an expiry and a spending ceiling. Paid work needs an approved price with a ceiling, and reading, exporting and sharing cost nothing.