Read Sarbacane campaigns, stats, lists and blacklists; manage contacts and draft email campaigns. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Sarbacane connector, then ask in plain words. The AI picks the tools.
For marketers who send email and SMS campaigns with Sarbacane.
The AI reads a campaign's statistics per send: delivered, opens, openers, clicks, clickers, unsubscribers, devices and operating systems.
The AI reads the remaining credits per type, such as email campaigns and SMS, with expiry date and subscription type.
The AI lists contact lists, the custom fields of a list and its contacts, filtered by email, phone, search text or modification date.
The AI lists blacklists and the entries of one by kind: bounces, unsubscribers or complaints. It helps you clean a list.
The AI adds a contact with email, phone and custom field values, or updates one when the same email and phone pair already exists. It can also record an unsubscribed contact.
Changes dataThe AI creates a draft campaign, sets its HTML content or imports a template, and attaches a contact list. It is never sent from here.
Changes dataThe login page asks for your Account id and API key.
In Sarbacane Suite open Settings → API, enable the API and create a key; the account id is shown next to it (see developers.sarbacane.com). API access depends on your plan. Your credentials are used only to call the Sarbacane API on your behalf; they are never shown to anyone.
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": {
"sarbacane": {
"url": "https://sarbacane.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"sarbacane": {
"type": "http",
"url": "https://sarbacane.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 Account id and 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 account | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per account | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Sarbacane server only. Ask your AI to run sarbacane_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 sarbacane_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 sarbacane_upgrade before then undoes the cancel. Or write to [email protected].
sarbacane_get_creditssarbacane_list_userssarbacane_list_listssarbacane_list_list_fieldssarbacane_list_contactssarbacane_list_blacklistssarbacane_list_blacklist_entriessarbacane_list_campaignssarbacane_get_campaignsarbacane_get_campaign_reportsarbacane_list_campaign_recipientssarbacane_list_webhookssarbacane_create_contactsarbacane_upsert_contactsarbacane_add_unsubscribersarbacane_create_email_campaignsarbacane_set_campaign_contentsarbacane_import_campaign_templatesarbacane_set_campaign_listsarbacane_usage_statussarbacane_request_featuresarbacane_upgradesarbacane_cancel_subscriptionCheck how a campaign performed. Check your remaining credits. Look at contact lists and their fields. Review bounces, unsubscribers and complaints. Add or update contacts, or record an unsubscribe. Prepare a draft email campaign. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Sarbacane. The server calls the Sarbacane API with your own Sarbacane 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 Account id and 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 Account id and 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 Sarbacane 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 Sarbacane.
Yes, if you approve it. 7 of the 19 Sarbacane tools can create or change data. The other 12 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 Sarbacane server only. Cancel any time: your paid plan then runs to the end of the paid period. Run sarbacane_usage_status to see how many calls you used.
Ask the AI to run sarbacane_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 sarbacane_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 sarbacane_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.