usefulapiVision6 MCP server
Read Vision6 lists, contacts, messages and reports; update contacts; send transactional email/SMS. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Vision6 connector, then ask in plain words. The AI picks the tools.
- Which of my last 5 email campaigns had the best open rate?
- Show the contacts who joined my Newsletter list this week.
- Add jo@example.com to my Customers list with first name Jo.
- Unsubscribe the contact with email sam@example.com from my main list.
What you can do with Vision6 in Claude and ChatGPT
For email and SMS marketers who manage contacts and campaigns in Vision6.
Compare the results of your last campaigns
The AI lists send reports with sent, opened, unique clicks, bounces and unsubscribes, and compares campaigns by open rate. It can read one report with per-link clicks.
See who opened a message
The AI lists the contacts one message was sent to, with send time and first and last open time, so you see who opened it.
List the contacts that joined a list
The AI lists the contacts of a list filtered by creation time, email or a custom field, with status and fields. It reads the list's fields first.
Add, update or unsubscribe contacts
The AI adds one contact or up to 200 at once to a list, or changes a contact's fields or subscription status. This may trigger the list's automations.
Changes dataSend a transactional email or SMS
The AI sends a transactional email or SMS to up to 100 recipients right away, and uses sending credits. It cannot be recalled.
Changes dataHow do I connect Vision6?
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.
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name Vision6 and this URL, then click Add:https://
vision6. usefulapi. io/ mcp - Claude opens the login page: enter your REST API endpoint and Vision6 API key.
- In a chat, click + → Connectors and turn on Vision6.
Team and Enterprise: an Owner adds the connector for the organization first.
ChatGPT chatgpt.com
- Open Plugins, click +, then Add custom MCP server.
- Enter the name Vision6 and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
vision6. usefulapi. io/ mcp - ChatGPT opens the login page: enter your REST API endpoint and Vision6 API key.
- In Plugins, install Vision6, then choose it in a chat.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Claude Code
Run this command, then run /mcp in Claude Code to log in:
Cursor
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"vision6": {
"url": "https://vision6.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"vision6": {
"type": "http",
"url": "https://vision6.usefulapi.io/mcp"
}
}
} Codex
Run these commands. The second one opens the login page:
Other clients
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 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.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Vision6 server only. Ask your AI to run vision6_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 vision6_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 vision6_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
Tools 27
Show all 27 tools (the AI picks them for you)
Read only · 15
- Get API key details
vision6_get_accountDetails 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. - List contact lists
vision6_list_listsList the account's contact lists with id, name, creation/modification time and notification settings. Filter by exact name. - Get a contact list
vision6_get_listOne contact list by id. - List a list's fields
vision6_list_list_fieldsThe 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. - List folders
vision6_list_foldersList 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. - List contacts
vision6_list_contactsList 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 a contact
vision6_get_contactOne contact by id within a list, with all fields. - List messages
vision6_list_messagesList saved email and SMS messages (templates and campaigns) with id, type, name, subject and sender. Filter by type or exact name/subject. - Get a message
vision6_get_messageOne message by id. With include_content=true the HTML and plain-text body is included. - Get default sender details
vision6_get_message_sender_defaultsThe account's default from name, from address and reply-to, applied to new email messages when you omit them. - List send reports
vision6_list_reportsSend 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 a send report
vision6_get_reportOne 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. - List contacts a message was sent to
vision6_list_sent_contactsThe 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. - List transactional groups
vision6_list_transactional_groupsTransactional send groups (one per group name used with vision6_send_transactional) with sent, failed, bounced, delivered, opened, clicked and unsubscribed counts. - Get a transactional group
vision6_get_transactional_groupOne transactional group by id with its delivery statistics.
Changes data · 8
- Create a contact
vision6_create_contactWRITE: 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. - Add several contacts
vision6_add_contactsWRITE: 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. - Update a contact
vision6_update_contactWRITE: 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. - Delete a contact
vision6_delete_contactWRITE, 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. - Create a contact list
vision6_create_listWRITE: create a new, empty contact list inside a list folder (see vision6_list_folders with type list). Returns the new list. - Create a message (draft)
vision6_create_messageWRITE: 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. - Update a message
vision6_update_messageWRITE: change a saved message's name, subject, sender, folder or body. Only the fields you pass change. It does not send anything. - Send a transactional email or SMS
vision6_send_transactionalWRITE: 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.
Your usefulapi plan · 4
- Usage status (free-tier meter)
vision6_usage_statusReport 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. - Request a missing feature
vision6_request_featureTell 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. - Upgrade to Pro or Pro+
vision6_upgradeGet a paid plan for Vision6 (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter. - Cancel the Pro subscription
vision6_cancel_subscriptionCancel 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.
FAQ
What can I do with Vision6 in Claude or ChatGPT?
Compare the results of your last campaigns. See who opened a message. List the contacts that joined a list. Add, update or unsubscribe contacts. Send a transactional email or SMS. See what you can do for the details.
Is this an official Vision6 product?
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.
Can I connect Vision6 to Claude or ChatGPT?
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.
What do I need to connect?
The login page asks for your REST API endpoint and Vision6 API key. See Before you connect for where to find them.
Do I put my Vision6 key or an Authorization header in the client config?
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.
How do you keep my Vision6 credentials?
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.
Can the AI change my Vision6 data?
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.
What does it cost?
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 Vision6 server only. Cancel any time: your paid plan then runs to the end of the paid period. Run vision6_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run vision6_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 vision6_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Vision6 tool that I need is missing?
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.
Which AI clients can I use?
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.