Review Open To Close properties and transaction records; add contacts and property notes. For real estate transaction coordinators and teams using Open To Close. Hosted by usefulapi — connect from Claude, ChatGPT, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"open-to-close": {
"url": "https://open-to-close.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"open-to-close": {
"type": "http",
"url": "https://open-to-close.usefulapi.io/mcp"
}
}
}No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run these commands. The second one opens the login page:
Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
List properties with their team and agent summaries, then review the related team and agent directories.
opentoclose_list_properties opentoclose_list_teams opentoclose_list_agents
List the tasks associated with a property and read a selected task’s recorded details.
opentoclose_list_property_tasks opentoclose_get_property_task
Search contacts by name or email and review the contacts associated with the selected property.
opentoclose_list_contacts opentoclose_list_property_contacts
Search existing contacts, confirm the requested details and create a new contact when needed. Creating it does not attach it to a property.
Changes data · opentoclose_list_contacts opentoclose_create_contact
Review existing notes, confirm the property, content and visibility settings, then add the requested note. Inspect current notes before retrying an uncertain result.
Changes data · opentoclose_list_property_notes opentoclose_add_property_note
The login page asks for your OpenToClose API token.
In app.opentoclose.com → Apps & API Dashboard, generate your API token. The token is used only to call OpenToClose on your behalf and is never shown to anyone. Usage and subscriptions belong to this API token; replacing it creates a separate connection identity.
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 OpenToClose API token. 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.
Turn on the Open To Close connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
opentoclose_list_agents | read | List agents List agents with name/email search and documented sorting. One offset/limit page. GET /v1/agents/. |
opentoclose_list_contacts | read | List contacts List contacts with name/email search and documented sorting. One offset/limit page. GET /v1/contacts. |
opentoclose_list_contact_roles | read | List contact roles List contact roles. GET /v1/contactRoles/. |
opentoclose_list_file_roles | read | List file roles List file roles. GET /v1/fileRoles/. |
opentoclose_list_property_fields | read | List property fields grouped into sections List property fields grouped into sections. GET /v1/propertyFields. |
opentoclose_list_property_field_groups | read | List property field groups List property field groups. GET /v1/propertyFieldGroups. |
opentoclose_list_property_field_sections | read | List property field sections List property field sections. GET /v1/propertyFieldSections. |
opentoclose_list_property_templates | read | List property templates List property templates. GET /v1/propertyTemplates/. |
opentoclose_list_teams | read | List teams and their members List teams and their members. GET /v1/teams/. |
opentoclose_list_time_zones | read | List time zones List time zones. GET /v1/timeZones/. |
opentoclose_list_tags | read | List tags List tags. GET /v1/tags. |
opentoclose_list_properties | read | List properties List properties with team/agent summaries through the current v1.1 endpoint. Maximum 50 per call. This does not return a property's full field values. GET /v1.1/properties. |
opentoclose_list_property_contacts | read | List property contacts List contacts associated with a property, optionally filtered by name/email. GET /v1/properties/{property_id}/contacts. |
opentoclose_list_property_documents | read | List property documents Read a property's document folders and document metadata/links. Does not download files. GET /v1/properties/{property_id}/documents. |
opentoclose_list_property_notes | read | List property notes List notes associated with a property. One offset/limit page. GET /v1/properties/{property_id}/notes. |
opentoclose_get_property_note | read | Get property note Read one note associated with a property. GET /v1/properties/{property_id}/notes/{record_id}. |
opentoclose_list_property_tasks | read | List property tasks List tasks associated with a property. GET /v1/properties/{property_id}/tasks. |
opentoclose_get_property_task | read | Get property task Read one task associated with a property. GET /v1/properties/{property_id}/tasks/{record_id}. |
opentoclose_create_contact | write | Create contact WRITE: create a contact. Search existing contacts first to avoid duplicates, then confirm the requested details. Creates a contact record without associating it with a property. Returns a created record ID. POST /v1/contacts. |
opentoclose_add_property_note | write | Add property note WRITE: add a note to a property. Confirm the property and note content/visibility with the user first. Adds another note on each call; inspect current notes before retrying. Optional visibility fields are omitted unless supplied; the vendor documents null defaults. POST /v1/properties/{property_id}/notes. |
opentoclose_usage_status | Usage status (free-tier meter) Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. | |
opentoclose_request_feature | Request a missing feature Tell usefulapi that the user needs something the OpenToClose tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
opentoclose_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on OpenToClose (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $39/month or $390/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter. | |
opentoclose_cancel_subscription | Cancel the Pro subscription Cancel the caller's OpenToClose Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run opentoclose_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper API token | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this Open To Close server only. Subscribe with opentoclose_upgrade (it returns a Stripe Checkout link). Cancel any time with opentoclose_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running opentoclose_upgrade before then undoes the cancel. Or write to [email protected].
Review property assignments. Inspect a property’s tasks. Find contacts for a property. Create a contact after checking for duplicates. Add a confirmed property note. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Open To Close. The server calls the Open To Close API with your own Open To Close 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 OpenToClose API token. See Before you connect for where to find it.
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 OpenToClose API token. 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 Open To Close 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 Open To Close.
Yes, if you approve it. 2 of the 20 Open To Close tools can create or change data. The other 18 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 unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Open To Close server only. Cancel any time: Pro then runs to the end of the paid period. Run opentoclose_usage_status to see how many calls you used.
Ask the AI to run opentoclose_upgrade: it returns a Stripe Checkout link. To cancel, run opentoclose_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with opentoclose_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.