usefulapiChatra MCP server
Read and update Chatra visitors; send, edit and delete chat and pushed messages. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Chatra connector, then ask in plain words. The AI picks the tools.
- Show the contact details and viewed pages of Chatra visitor 5f3a9c.
- Send a Chatra message to visitor 5f3a9c as agent Liz: your refund has been issued.
- Push 'Your order has shipped, tracking number 9114 5847' to visitor 5f3a9c.
- Change the phone number and notes of visitor 5f3a9c in Chatra.
What you can do with Chatra in Claude and ChatGPT
For support and sales teams who chat with website visitors in Chatra.
Look up a chat visitor
The AI reads a visitor's name and contact details, form answers, location, browser, dashboard link and the pages viewed in the latest visit.
Update a visitor's name, email, phone or notes
The AI changes the basic info of a visitor, as an agent would in the dashboard. Only the fields you give change.
Changes dataSend a chat message to a visitor
The AI sends a message to a visitor as an agent. The visitor sees it at once in the chat window.
Changes dataPush an automated message to a visitor
The AI sends an automated message such as an order status or product update to a visitor who is linked to Chatra by a clientId.
Changes dataEdit or delete a message you sent
The AI replaces the text of a sent agent message or pushed message, or deletes one. Deleting cannot be undone.
Changes dataRead a message by its id
The AI reads one chat message or pushed message: its text, sender type, visitor, agent and time. The id comes from a send call or a webhook.
How do I connect Chatra?
Before you connect
The login page asks for your Public API key and Secret API key.
Find both keys in Chatra under Settings → Preferences → API keys. The keys act for your whole Chatra account and messages you send reach real visitors. They are used only to call the Chatra API on your behalf and are never shown to anyone.
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name Chatra and this URL, then click Add:https://
chatra. usefulapi. io/ mcp - Claude opens the login page: enter your Public API key and Secret API key.
- In a chat, click + → Connectors and turn on Chatra.
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 Chatra and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
chatra. usefulapi. io/ mcp - ChatGPT opens the login page: enter your Public API key and Secret API key.
- In Plugins, install Chatra, 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": {
"chatra": {
"url": "https://chatra.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"chatra": {
"type": "http",
"url": "https://chatra.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 Public API key and Secret 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 Chatra server only. Ask your AI to run chatra_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 chatra_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 chatra_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
Tools 14
Show all 14 tools (the AI picks them for you)
Read only · 3
- Get visitor
chatra_get_visitorA chat visitor by id: name and contact details (basicInfo, integrationData and the merged `info`), custom form answers, location, browser, the link to the chat in the Chatra dashboard, the agent group, and the pages viewed in the latest visit. The id is the `clientId` your website passed to the widget or the visitor id from a Chatra webhook; Chatra has no endpoint to list or search visitors. - Get message
chatra_get_messageOne chat message by id (a visitor's or an agent's): type (agent or client), text, visitor id, agent id, timestamp (ms) and receivedFrom. Chatra has no endpoint to list a conversation, so the id must come from a send call or a webhook. - Get pushed message
chatra_get_pushed_messageOne pushed (automated) message sent earlier by id: text, visitor id, agent id, timestamp (ms), isPushed.
Changes data · 7
- Update visitor
chatra_update_visitorWRITE: edit a visitor's basic info (name, email, phone, notes) exactly as if an agent edited it in the Chatra dashboard. Only the fields you pass change; `null` removes a value. Returns the updated visitor. - Send message as an agent
chatra_send_messageWRITE: send a chat message to a visitor as a Chatra agent. The visitor sees it immediately in their chat window as if the agent typed it, so only call it with text the user asked you to send. It cannot be unsent except by deleting it. Say which agent writes: agent_id, or agent_email + agent_name + received_from (a dummy agent is created in Chatra when the email is unknown). For automated notices (order status, announcements) use chatra_push_message instead. Returns the new message with its id. - Edit agent message
chatra_edit_messageWRITE: replace the text of an agent message that was sent earlier. Only agents' messages can be edited, not visitors'. The visitor sees the edited text. Returns the updated message. - Delete agent message
chatra_delete_messageWRITE, IRREVERSIBLE: delete an agent message from the conversation. Only agents' messages can be deleted, not visitors'. Returns the deleted message. - Push message to a visitor
chatra_push_messageWRITE: send an automated message (order status, product update, announcement) to a visitor whose account is bound to Chatra through a clientId. It is delivered into the visitor's chat on behalf of a random agent, a given agent (agent_id) or a random agent of a group (group_id). It reaches a real customer and cannot be unsent except by deleting it, so only call it with text the user asked you to send. Returns the new message with its id. - Edit pushed message
chatra_edit_pushed_messageWRITE: replace the text of a pushed message sent earlier; the visitor sees the edited text. Returns the updated message. - Delete pushed message
chatra_delete_pushed_messageWRITE, IRREVERSIBLE: delete a pushed message sent earlier. Returns the deleted message.
Your usefulapi plan · 4
- Usage status (free-tier meter)
chatra_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
chatra_request_featureTell usefulapi that the user needs something the Chatra 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+
chatra_upgradeGet a paid plan for Chatra (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
chatra_cancel_subscriptionCancel the caller's Chatra 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 chatra_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with Chatra in Claude or ChatGPT?
Look up a chat visitor. Update a visitor's name, email, phone or notes. Send a chat message to a visitor. Push an automated message to a visitor. Edit or delete a message you sent. Read a message by its id. See what you can do for the details.
Is this an official Chatra product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by Chatra. The server calls the Chatra API with your own Chatra access, so it sees only the data that your account can see.
Can I connect Chatra 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 Public API key and Secret API key. See Before you connect for where to find them.
Do I put my Chatra 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 Public API key and Secret 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 Chatra credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Chatra 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 Chatra.
Can the AI change my Chatra data?
Yes, if you approve it. 7 of the 10 Chatra tools can create or change data. The other 3 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 Chatra server only. Cancel any time: your paid plan then runs to the end of the paid period. Run chatra_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run chatra_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 chatra_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Chatra tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with chatra_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.