API and MCP, now in beta

Powering the people (and agents) behind small business

Data on 19 million+ U.S. businesses, through our API or straight into your AI tool.

Build with agents

Join 100,000+ people supporting small business

Every business, understood.

One record brings together who a business is, what it’s worth, how it compares, what support it will need, and the potential next owners.

Riverbend CoffeeCoffee shop · Indianapolis, IN
Example record
  • Business profileActive · NAICS 722515
  • Locations2 locations · Marion County, IN
  • Brands & legalLLC · Indiana registration
  • ValuationModeled estimate: $420K – $560K
  • Market benchmarksCompared with Indiana coffee shops
  • Buyer activity3 matched buyer profiles

Ask SMB what you need to know.

A few of the questions teams bring to SMB, and what comes back.

Brokers, M&A advisors, CPAs and exit planners

Walk into every client meeting prepared.

Start with a clear profile, a modeled value range and how the business compares, before the first question.

SMB for advisors
ClaudeSMB connected

Brief me on Fieldwork Plumbing before tomorrow’s call.

Fieldwork PlumbingPlumbing · Fort Wayne, IN
Example
Modeled estimate
$1.1M – $1.4M
Compared with
Indiana plumbing businesses
Buyer interest
5 matched buyer profiles

Worth raising: two questions about recurring service revenue would narrow the range.

From one copied prompt to your first answer.

  1. Help me connect this AI app to SMB.co. SMB’s MCP server is https://api.smb.co/mcp…

    01

    Copy the prompt

    Paste it into ChatGPT, Claude, Gemini or another AI tool.

  2. Public business data
    Available after sign-in
    Your Workspace
    Only with your permission
    Passwords and keys
    Never pasted into chat
    02

    Sign in and approve access

    Your agent connects to SMB’s MCP server. You sign in and review what it can use.

  3. What’s Riverbend Coffee worth?

    Modeled estimate: $420K – $560KExample
    03

    Ask about any business

    Look it up, see a modeled value, or compare it with its market.

Building with code? Read the API quickstart

A few useful answers.

What information can I work with?

Business profiles, locations, market context, and more. The business-data catalog lists the fields currently exposed by the API, including whether they belong to public business context or a private Workspace.

Does API access include private business information?

No. Private Workspace tools require sign-in and permission. A Workspace ID selects context; it does not grant access to someone else’s information.

Can I use SMB from an AI tool?

Yes. Copy this prompt into ChatGPT, Claude, Gemini or another AI app, or add https://api.smb.co/mcp yourself. You sign in to SMB and can revoke access any time.

Build with agents
How do I get access?

Sign in or create an account, then open Settings → API keys. Workspace owners and admins can manage keys when API access is enabled for their workspace.

What will you build?

Connect your agent to SMB with one paste.

Build with agents