Manage Benchmark Email lists and contacts, and read campaign reports: opens, clicks, bounces. Hosted by usefulapi — connect from Claude, 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": {
"benchmark-email": {
"url": "https://benchmark-email.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"benchmark-email": {
"type": "http",
"url": "https://benchmark-email.usefulapi.io/mcp"
}
}
}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.
The login page asks for your Benchmark Email API token.
Find it in Benchmark Email under Integrations (ui.benchmarkemail.com/Integrate) in the API tab. Any account type, including the free plan, has an API token. The token acts as the account owner; it is used only to call the Benchmark Email API on your behalf and is never shown to anyone.
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 Benchmark Email 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.
| Tool | Type | What it does |
|---|---|---|
benchmark_get_account | read | Get account The Benchmark Email account this token belongs to: client id, name, company, email, status, plan products, contact count and emails sent. GET /Client/ProfileDetails. |
benchmark_get_plan | read | Get plan and usage The account's email plan, add-ons and contact usage (active, account and total contacts, percent used). GET /Client/Plan. |
benchmark_get_settings | read | Get account settings Default sender settings: from name and email, signature, footer, time zone, language and company address. The API token in the reply is removed. GET /Client/Setting. |
benchmark_list_lists | read | List contact lists List contact lists with id, name, description, contact count and dates. Use the ids with the contact tools. GET /Contact/. |
benchmark_get_list | read | Get contact list One contact list: name, description, active contact count and its custom field names (Field1Name ...). GET /Contact/{list_id}. |
benchmark_get_list_fields | read | Get contact list fields The column names of a contact list (email, firstname, lastname and the custom fields). GET /Contact/{list_id}/Fields. |
benchmark_create_list | write | Create contact list WRITE: create an empty contact list. POST /Contact/. |
benchmark_list_segments | read | List segments List the saved segments (filtered subsets of lists) with id and name. GET /Contact/Segments. |
benchmark_list_contacts | read | List contacts in a list List the contacts of one list with email, name, dates and id. Filter by status (subscribed, unsubscribed, hard_bounced) or search a column. GET /Contact/{list_id}/ContactDetails. |
benchmark_get_contact | read | Get contact One contact of a list with all its fields (Field1 ... Field24 hold the custom columns). GET /Contact/{list_id}/ContactDetails/{contact_id}. |
benchmark_search_contacts | read | Search contacts by email Find an email address across all lists: one row per list it is on, with the list name, contact id and master-unsubscribe flag. GET /Contact/ContactDetails. |
benchmark_add_contact | write | Add contact to a list WRITE: add one contact to a list (or update it if the email is already there, as the vendor decides). It does not send any email. Only add people who agreed to get email. POST /Contact/{list_id}/ContactDetails. |
benchmark_update_contact | write | Update contact WRITE: change fields of one contact in one list. Only the fields you pass are sent. PATCH /Contact/{list_id}/ContactDetails/{contact_id}. |
benchmark_unsubscribe_contact | write | Unsubscribe contact WRITE: move a contact to the Do Not Contact (master unsubscribe) list, so no campaign reaches it again. The API has no undo for this. DELETE /Contact/{list_id}/MoveToDNC/{contact_id}. |
benchmark_list_emails | read | List emails (campaigns) List email campaigns with id, name, subject, type, status, dates and target lists. GET /Emails/. |
benchmark_get_email | read | Get email (campaign) One email campaign: subject, sender, target and excluded lists, dates and settings. GET /Emails/{email_id}. |
benchmark_list_email_reports | read | List email report summaries Report summaries of sent emails: sends, opens, clicks, bounces, unsubscribes and complaints per campaign. GET /Emails/Report. |
benchmark_get_email_report | read | Get email report The report summary of one email: recipients, opens, clicks, bounces, unsubscribes, forwards, complaints and rates. GET /Emails/{email_id}/Report. |
benchmark_get_email_opens | read | Get email opens Who opened an email: contact, email address, time and device. GET /Emails/{email_id}/Report/Opens. |
benchmark_get_email_clicks | read | Get email clicks Who clicked a link in an email: contact, email address and time. GET /Emails/{email_id}/Report/Clicks. |
benchmark_get_email_bounces | read | Get email bounces Which addresses bounced for an email: contact, email address, time and bounce type. GET /Emails/{email_id}/Report/Bounces. |
benchmark_get_email_unsubscribes | read | Get email unsubscribes Who unsubscribed after an email: contact, email address, time and reason, with a count per reason. GET /Emails/{email_id}/Report/Unsubscribes. |
benchmark_list_signup_forms | read | List signup forms List signup forms with id, name, date and the lists they feed. GET /SignupForm/. |
benchmark_get_signup_form | read | Get signup form One signup form with its settings and target lists. GET /SignupForm/{form_id}. |
benchmark_get_signup_form_link | read | Get signup form link The public link of a signup form. GET /SignupForm/{form_id}/Link. |
benchmark_usage_status | Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter. | |
benchmark_request_feature | Request a missing feature Tell usefulapi that the user needs something the Benchmark Email 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. | |
benchmark_upgrade | Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED Benchmark Email tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Does not count against the meter. | |
benchmark_cancel_subscription | Cancel the Pro subscription Cancel the caller's Benchmark Email Pro subscription at the end of the paid period (no refund for the current period; unlimited calls continue until then, then the free tier applies). Requires confirm: true. Run benchmark_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 100 tool calls / month |
| Proper user | $9/mo · $90/yr | Unlimited |
Pro covers this Benchmark Email server only. Subscribe with benchmark_upgrade (it returns a Stripe Checkout link). Cancel any time with benchmark_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running benchmark_upgrade before then undoes the cancel. Or write to [email protected].
No. usefulapi is an independent service. It is not affiliated with or endorsed by Benchmark Email. The server calls the Benchmark Email API with your own Benchmark Email access, so it sees only the data that your account can see.
The login page asks for your Benchmark Email 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 Benchmark Email 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 Benchmark Email 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 Benchmark Email.
Yes, if you approve it. 4 of the 25 Benchmark Email tools can create or change data. The other 21 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 100 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls, for this Benchmark Email server only. Run benchmark_usage_status to see how many calls you used.
Ask the AI to run benchmark_upgrade: it returns a Stripe Checkout link. To cancel, run benchmark_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 benchmark_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, 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.