Customer.io MCP by usefulapi
RemoteAbout Customer.io MCP by usefulapi
Customer.io MCP by usefulapi is a hosted MCP server for managing Customer.io data and messaging from MCP clients. It provides read access to people, segments, campaigns, and messages, plus tools to send transactional email and trigger broadcasts.
Key features
- 01Search people and inspect their attributes
- 02View segments, campaigns and campaign metrics
- 03List and retrieve customer messages
- 04Send transactional email
- 05Trigger broadcasts
Use cases
- 01Review customer attributes and segments
- 02Check campaign performance and message history
- 03Send a transactional email from an MCP client
- 04Start a broadcast
MCP support
Exposes Customer.io search, reporting, and messaging tools to MCP clients through a hosted endpoint. Users connect with Customer.io API credentials.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://customerio.usefulapi.io/mcpclaude mcp add --transport http io-usefulapi-customerio https://customerio.usefulapi.io/mcp{"mcpServers":{"io-usefulapi-customerio":{"type":"http","url":"https://customerio.usefulapi.io/mcp"}}}Open in Cursor{"servers":{"io-usefulapi-customerio":{"type":"http","url":"https://customerio.usefulapi.io/mcp"}}}Open in VS Code{"mcpServers":{"io-usefulapi-customerio":{"type":"http","url":"https://customerio.usefulapi.io/mcp"}}}{"mcpServers":{"io-usefulapi-customerio":{"serverUrl":"https://customerio.usefulapi.io/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
13| Parameter | Type | Required | Description |
|---|---|---|---|
| limit | integer | No | Max people to return. |
| start | string | No | Pagination cursor from a previous response's `next`. |
| filter | object | Yes | Customer.io filter object, e.g. {"segment":{"id":7}} or {"and":[{"attribute":{"field":"email","operator":"exists"}}]}. |
Details
From the project READMECustomer.io MCP by usefulapi
Manage your Customer.io people, segments, campaigns, and messaging from Claude, Cursor, or any MCP client. Hosted, no local install — connect with your Customer.io API credentials.
Live endpoint: https://customerio.usefulapi.io/mcp · Homepage: https://usefulapi.io/customerio
Connect
- Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste
https://customerio.usefulapi.io/mcp. - Claude Code:
claude mcp add --transport http customerio https://customerio.usefulapi.io/mcp, then run/mcpto log in. - VS Code: Add to VS Code.
- Cursor and other clients: add the URL as a remote MCP server:
{
"mcpServers": {
"customerio": {
"url": "https://customerio.usefulapi.io/mcp"
}
}
}
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, and the login page asks for your Customer.io credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/customerio/
On first connect you'll paste your Customer.io API key(s). It's validated, stored per-user, and scoped to you.
Tools
| Tool | Type | What it does |
|---|---|---|
customerio_search_customers | read | Search customers |
customerio_get_customer_attributes | read | Get customer attributes |
customerio_get_customer_segments | read | Get customer segments |
customerio_get_customer_messages | read | Get customer messages |
customerio_list_segments | read | List segments |
customerio_list_campaigns | read | List campaigns |
customerio_get_campaign | read | Get campaign |
customerio_get_campaign_metrics | read | Get campaign metrics |
customerio_list_messages | read | List messages |
customerio_list_exports | read | List exports |
customerio_list_collections | read | List collections |
customerio_send_transactional_email | write | Send transactional email |
customerio_trigger_broadcast | write | Trigger broadcast |
customerio_usage_status | meta | Usage status (free-tier meter) |
customerio_request_feature | meta | Request a missing feature |
customerio_upgrade | meta | Upgrade to Pro (unlimited*) |
customerio_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro | $9/mo or $90/yr (2 months free) | Unlimited* |
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with customerio_upgrade (it returns a Stripe Checkout link). Cancel any time with customerio_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running customerio_upgrade before then undoes the cancel. Or write to [email protected].
License
MIT — see LICENSE. Documentation only; the server is hosted.
Comments
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