Productivity · Remote MCP server

HonkIO

Canadian SMS and email API for AI agents: send SMS and email, verify phones, handle CASL consent.

Visit HonkIO's website

What the MCP Registry states

The entry as published to the official MCP Registry (read 2026-10-04), latest version.

Registry name
ca.honkio/mcp
Version
1.12.1
Status
Active
Category
productivity
Transport
Streamable HTTP, stdio (local process)
Package
npm
Published
2026-10-01
Updated
2026-10-01
Publisher
ca.honkio
Website
honkio.ca/docs/mcp
Repository
github.com/jeffcaldwellca/honkio (folder mcp)
Source
Registry API entry

Remote endpoints

TransportURLHeaders declared
Streamable HTTPhttps://mcp.honkio.ca/mcpAuthorization (required, secret), X-HonkIO-Read-Inbox

Packages

RegistryPackageVersionTransportEnvironment variables
npmruntime: npx@honkio/mcp1.12.1stdioHONKIO_API_KEY (required, secret), HONKIO_MCP_READ_INBOX

How to connect HonkIO

HonkIO is a remote MCP server: there is nothing to install. Its endpoint is https://mcp.honkio.ca/mcp, served over Streamable HTTP. In an assistant that accepts remote MCP servers (often under a setting named connectors, integrations or tools), add a new server and give it this URL; in a client configured by file, add it as a remote (HTTP) server with the same URL.

The registry entry declares HTTP headers for the connection: Authorization (required, secret) and X-HonkIO-Read-Inbox. A secret header usually carries an API key or token issued by the service; clients that accept custom headers set them with the server's URL.

It can also run locally from a Node.js package published to the npm registry: @honkio/mcp version 1.12.1. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y @honkio/mcp@1.12.1. It reads these environment variables: HONKIO_API_KEY (required, secret) and HONKIO_MCP_READ_INBOX; set them in the client's configuration for this server.

In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@honkio/mcp@1.12.1"
      ],
      "env": {
        "HONKIO_API_KEY": "<secret>",
        "HONKIO_MCP_READ_INBOX": "<value>"
      }
    }
  }
}

Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect

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