MCP server for SuperPhone — contacts, conversations, tags and consent-based text messages. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the SuperPhone connector, then ask in plain words. The AI picks the tools.
For business teams using SuperPhone for consent-based customer texting.
List conversations and inspect a selected conversation and its messages.
Find a contact by email or phone number and review its details and tags.
Add or remove tags on a selected contact. Tags may trigger automations configured in your SuperPhone account.
Changes dataReview the contact and conversation, confirm consent and opt-out status, then send a requested text. This sends a real message from your connected number.
Changes dataThe login page asks for your Superphone API key.
Find it in Superphone -> Settings -> Public API key (app.superphone.io/settings/public-api-key); generate one there if you have none. The key can read your contacts and conversations and send texts from your number, so only share it with assistants you trust. Requested contacts, conversations and message content passes to your chosen AI client and its LLM provider. Six write tools create/update contacts, add/remove tags, record purchases, or send a text from your number; recording a purchase does not charge a card. Send texts only to recipients who have consented and inspect current opt-out flags first. Updating a contact reads then writes it and may race with other edits; review changes in SuperPhone. Regenerate the key in SuperPhone to stop vendor access. Billing follows the verified user ID and survives key rotation.
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": {
"superphone": {
"url": "https://superphone.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"superphone": {
"type": "http",
"url": "https://superphone.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 Superphone 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 verified SuperPhone user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per verified SuperPhone user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this SuperPhone server only. Ask your AI to run superphone_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 superphone_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 superphone_upgrade before then undoes the cancel. Or write to [email protected].
superphone_get_accountsuperphone_list_contactssuperphone_get_contactsuperphone_find_contactsuperphone_list_conversationssuperphone_get_conversationsuperphone_get_messagesuperphone_list_formssuperphone_get_formsuperphone_list_webhookssuperphone_search_numberssuperphone_create_contactsuperphone_update_contactsuperphone_add_contact_tagssuperphone_remove_contact_tagssuperphone_add_contributionsuperphone_send_messagesuperphone_usage_statussuperphone_request_featuresuperphone_upgradesuperphone_cancel_subscriptionReview a customer conversation. Find a customer record. Maintain a customer segment. Send a requested reply. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by SuperPhone. The server calls the SuperPhone API with your own SuperPhone 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 Superphone API key. 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 Superphone 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 SuperPhone 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 SuperPhone.
Yes, if you approve it. 6 of the 17 SuperPhone tools can create or change data. The other 11 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 SuperPhone server only. Cancel any time: your paid plan then runs to the end of the paid period. Run superphone_usage_status to see how many calls you used.
Ask the AI to run superphone_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 superphone_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 superphone_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.