Use Emboss in Grok

Emboss runs an MCP server at https://api.getemboss.ai/mcp. Connect it once and fill PDF forms from a conversation: make a flat PDF fillable, fill it from notes or documents you paste or attach, or fill it for every row of a spreadsheet. Sign in with an Emboss account when prompted. Emboss is not yet listed in Grok's connector directory, at the time of writing.

Connect

Go to grok.com/connectors.
Choose New Connector, then Custom.
Paste the server URL: https://api.getemboss.ai/mcp.
Sign in to Emboss when prompted.

Availability

Available to all Grok users; in a Business or Enterprise workspace, an admin adds it.

What you can do

Make a flat PDF fillable. Attach a PDF and ask Grok to detect its fields; see the MCP tools reference for create_form.
Fill a form from context. Attach a form and one or more context documents; see fill_form_from_context for how the match works.
Fill a form for every row in a spreadsheet. Attach a form and a spreadsheet; see fill_batch for the mapping and row output.

For developers (xAI API)

xAI's Remote MCP Tools takes a server URL plus a static header instead of an OAuth flow. Use an Emboss API key (see Authentication) as the bearer token:

{
  "mcp_servers": [
    {
      "server_url": "https://api.getemboss.ai/mcp",
      "headers": {
        "Authorization": "Bearer sk_..."
      }
    }
  ]
}

Billing and privacy

Free tier: The first 5 form creations, 5 context fills, 5 standard fills, 5 verifications, 5 reads, and 5 packages each month are free when the job is 5 pages or fewer (a context fill counts the form and its documents together); a longer job is charged and does not use a free one. See Pricing for current rates. Only the arguments a tool call needs are sent to Emboss. Disconnect at any time from Dashboard, then Account, then Connected apps. A connection made with an API key is not listed there: revoke or turn off the key on the API Keys page instead.