Read Builder Prime projects and meetings, and create or update them from chat. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Builder Prime connector, then ask in plain words. The AI picks the tools.
For home improvement contractors who track projects and sales meetings in Builder Prime.
List recently changed projects and open one to check its customer, status and value. Project lists cover changes within the past year, with additional pages available.
List meetings in a chosen date range, open a meeting for details and look up employees to identify attendees.
Read a project, then change only the fields you specify, such as its status. Account status names must match exactly; updates execute immediately and may trigger workflows.
Changes dataLook up meeting types and employees, then create a meeting for an existing client opportunity. Check dates, timezone, attendee and type first; vendor notifications may occur.
Changes dataThe login page asks for your Builder Prime subdomain and Builder Prime Open API key.
Verification limitation: real-account authentication, reads and writes have not been tested. Published example-tenant probes return a generic JSON 400 for missing and synthetic keys. This release passed mock integration and hosted Worker tests; real-tenant verification remains outstanding.
In Admin → Integrations → Open API → Generate New API Key, create a dedicated key with projects.read for login; add meetings.read, employees.read, meetingtypes.read and meetingresults.read for those tools. Add projects.create/edit or meetings.create/edit only if you need writes. Enter just the subdomain, such as johnsfloors. Requested customer/business records pass to your chosen AI client and its LLM provider. Write tools execute immediately; ask your client to show changes and request approval. Revoke this integration key in Builder Prime to stop vendor access. Billing follows the subdomain and key together; replacing the key changes billing identity. Project lists cover changes within the past year. This is an independent integration.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"builder-prime": {
"url": "https://builder-prime.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"builder-prime": {
"type": "http",
"url": "https://builder-prime.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Builder Prime subdomain and Builder Prime Open API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper tenant and API key | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per tenant and API key | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Builder Prime server only. Ask your AI to run builderprime_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with builderprime_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with builderprime_upgrade before then undoes the cancel. Or write to [email protected].
builderprime_list_projectsbuilderprime_get_projectbuilderprime_list_meetingsbuilderprime_get_meetingbuilderprime_list_employeesbuilderprime_get_employeebuilderprime_list_meeting_typesbuilderprime_get_meeting_typebuilderprime_list_meeting_resultsbuilderprime_get_meeting_resultbuilderprime_create_projectbuilderprime_update_projectbuilderprime_create_meetingbuilderprime_update_meetingbuilderprime_usage_statusbuilderprime_request_featurebuilderprime_upgradebuilderprime_cancel_subscriptionReview recent projects. Check upcoming sales meetings. Update a project after reviewing its details. Book a meeting for an existing opportunity. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Builder Prime. The server calls the Builder Prime API with your own Builder Prime access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your Builder Prime subdomain and Builder Prime Open API key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Builder Prime subdomain and Builder Prime Open API key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Builder Prime API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Builder Prime.
Yes, if you approve it. 4 of the 14 Builder Prime tools can create or change data. The other 10 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Builder Prime server only. Cancel any time: your paid plan then runs to the end of the paid period. Run builderprime_usage_status to see how many calls you used.
Ask the AI to run builderprime_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run builderprime_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with builderprime_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
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.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.