Read Vision6 lists, contacts, messages and reports; update contacts; send transactional email/SMS. 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": {
"vision6": {
"url": "https://vision6.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"vision6": {
"type": "http",
"url": "https://vision6.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.
The login page asks for your REST API endpoint and Vision6 API key.
In Vision6 open Integrations → API Keys, create a REST-compatible key (choose the lowest access level that covers what you need) and copy the key plus the REST API Endpoint shown there (like https://au1.api.vision6.com/v1/). Your key is used only to call the Vision6 API on your behalf; it 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 REST API endpoint and Vision6 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.
Turn on the Vision6 connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
vision6_get_account | read | Get API key details Details of the API key this server uses: the scopes it grants (e.g. list.view, contact.create, message.edit, report.view) and its creation/expiry time. Use it to see why a request is refused. GET /v1/. |
vision6_list_lists | read | List contact lists List the account's contact lists with id, name, creation/modification time and notification settings. Filter by exact name. GET /lists. |
vision6_get_list | read | Get a contact list One contact list by id. GET /lists/{list_id}. |
vision6_list_list_fields | read | List a list's fields The fields (columns) of a contact list: label, type (email, mobile, text, dropdown, date ...), allowed values and whether they are mandatory. The lowercase underscore form of a label is the key used for contact values and filters. GET /lists/{list_id}/fields. |
vision6_list_folders | read | List folders List the account's folders (list folders and message folders) with id, name, type and size. Needed for the folder id when creating a list or message. GET /folders. |
vision6_list_contacts | read | List contacts List the contacts of one list: email, mobile, subscribed/blocked status, active flag, double opt-in and the list's custom fields. Filter by email, mobile, active flag, creation/modification time or any custom field (`filters`, e.g. {"city":"Brisbane"} or {"source:ne":"promo"}). GET /lists/{list_id}/contacts. |
vision6_get_contact | read | Get a contact One contact by id within a list, with all fields. GET /lists/{list_id}/contacts/{contact_id}. |
vision6_list_messages | read | List messages List saved email and SMS messages (templates and campaigns) with id, type, name, subject and sender. Filter by type or exact name/subject. GET /messages. |
vision6_get_message | read | Get a message One message by id. With include_content=true the HTML and plain-text body is included. GET /messages/{message_id}. |
vision6_get_message_sender_defaults | read | Get default sender details The account's default from name, from address and reply-to, applied to new email messages when you omit them. GET /message-sender-defaults. |
vision6_list_reports | read | List send reports Send reports for campaigns, newest first: message name, type, sent, bounced, opened, unique clicks, unsubscribes, complaints, total recipients and last sent time. Filter by message, type, test sends or creation time. Click and domain breakdowns are only returned when requested via `fields`. GET /reports. |
vision6_get_report | read | Get a send report One send report by id with all delivery and engagement counts, per-link click counts and recipient domain distribution. Optionally includes A/B test results and social click/share statistics. GET /reports/{report_id}. |
vision6_list_sent_contacts | read | List contacts a message was sent to The contacts one message was sent to, with send time, first/last open time and open type (html, text, sms or not_opened). Use it to see who opened a campaign. GET /messages/{message_id}/sent-contacts. |
vision6_list_transactional_groups | read | List transactional groups Transactional send groups (one per group name used with vision6_send_transactional) with sent, failed, bounced, delivered, opened, clicked and unsubscribed counts. GET /transactional-groups. |
vision6_get_transactional_group | read | Get a transactional group One transactional group by id with its delivery statistics. GET /transactional-groups/{group_id}. |
vision6_create_contact | write | Create a contact WRITE: add one contact to a list (needs an email and/or mobile that matches a field of the list). May trigger the list's 'contact created' automations and notification emails. Returns the new contact. POST /lists/{list_id}/contacts. |
vision6_add_contacts | write | Add several contacts WRITE: add up to 200 contacts to a list in one request (faster than one by one). Each needs an email and/or mobile. Vision6 returns no contact data (HTTP 204), so use vision6_list_contacts to read them back. May trigger automations. POST /lists/{list_id}/contacts. |
vision6_update_contact | write | Update a contact WRITE: change one contact's email, mobile, custom field values, subscription status (email_subscribed/mobile_subscribed=false unsubscribes), active flag or double opt-in. Only the fields you pass change. May trigger 'contact updated' automations. Returns the updated contact. PATCH /lists/{list_id}/contacts/{contact_id}. |
vision6_delete_contact | write | Delete a contact WRITE, IRREVERSIBLE: permanently delete one contact from a list (for example for a privacy erasure request). To stop emailing someone but keep the record, use vision6_update_contact with email_subscribed=false instead. Pass confirm=true only after the user agreed to the deletion. DELETE /lists/{list_id}/contacts?id={contact_id}. |
vision6_create_list | write | Create a contact list WRITE: create a new, empty contact list inside a list folder (see vision6_list_folders with type list). Returns the new list. POST /lists. |
vision6_create_message | write | Create a message (draft) WRITE: save a new email or SMS message in Vision6. This only stores the message; it is NOT sent (use the Vision6 app to send a campaign, or vision6_send_transactional for a one-off send). Email needs email_type, subject and matching body fields (plain: content_text; html: content_html; plain-html: both; raw_html: content_html or content_html_raw). SMS needs content_sms. The drag-and-drop builder is not supported. POST /messages. |
vision6_update_message | write | Update a message WRITE: change a saved message's name, subject, sender, folder or body. Only the fields you pass change. It does not send anything. PATCH /messages/{message_id}. |
vision6_send_transactional | write | Send a transactional email or SMS WRITE: SENDS REAL EMAIL OR SMS to the recipients immediately (asynchronously) and USES ACCOUNT SENDING CREDITS. It cannot be recalled. Up to 100 recipients per call, each identified by exactly one of contact_id, email or mobile, plus optional personalisation values (wildcards %%key%% in the body). Either send a saved message (message_id) or custom content (subject/body_html/body_text, and for SMS body_text + from_address). Unsubscribed addresses are skipped. Email always needs list_id. Results appear in the transactional group (vision6_get_transactional_group). The account owner's email must be confirmed in Vision6 first. Pass confirm_send=true only after the user approved these recipients and this content. POST /transactional-sends. |
vision6_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. | |
vision6_request_feature | Request a missing feature Tell usefulapi that the user needs something the Vision6 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. | |
vision6_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on Vision6 (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+, $19/month or $190/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. | |
vision6_cancel_subscription | Cancel the Pro subscription Cancel the caller's Vision6 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 vision6_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 user | $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 Vision6 server only. Subscribe with vision6_upgrade (it returns a Stripe Checkout link). Cancel any time with vision6_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running vision6_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 Vision6. The server calls the Vision6 API with your own Vision6 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 REST API endpoint and Vision6 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 REST API endpoint and Vision6 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 Vision6 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 Vision6.
Yes, if you approve it. 8 of the 23 Vision6 tools can create or change data. The other 15 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 Vision6 server only. Cancel any time: Pro then runs to the end of the paid period. Run vision6_usage_status to see how many calls you used.
Ask the AI to run vision6_upgrade: it returns a Stripe Checkout link. To cancel, run vision6_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 vision6_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.