PacketExchange — Claude Code MCP server: what it does, how to install
A hosted MCP server that gives AI agents tools for SMS, voice calls, and phone verification. It connects directly to telephony routes without local hosting.
claude mcp add --transport http packetexchange https://packetexchange.io/mcp/httpWhat PacketExchange does
The server operates remotely over stateless HTTP at https://packetexchange.io/mcp/http. No local build is needed. It provides 33 tools, split between 15 marketplace and account utilities and 18 Switch tools for managing carriers, routing, and billing.
Calling features include speech synthesis in six languages, audio playback, and DTMF keypad digit collection through wmmn_make_call. Text messaging via wmmn_send_sms reports the gateway submission state immediately, while final handset delivery status is queried through external REST webhooks.
Unauthenticated sessions can only access three discovery tools. Any billed action requires an account with prepaid credits and an Authorization: Bearer <API key> header set in your client configuration. Using test keys prefixed with wmmn_test_sk_ simulates traffic without spending balance, but blocks Switch modifications.
What it helps with
- verify phone numbers using spoken voice passcodes
- dispatch transactional SMS messages through external routes
- initiate phone calls with interactive keypad digit capture
- compare wholesale voice route pricing across destinations
- check prepaid account balance and transaction records
Example prompts for the agent
- Search PacketExchange for the lowest cost voice routes to Kenya
- Send an SMS verification code to +1234567890
- Initiate a call to +1987654321, speak a greeting in French, and collect keypad digits
How to install PacketExchange
Platform CLI: remote server
claude mcp add --transport http packetexchange https://packetexchange.io/mcp/httpPlatform CLI: remote server
codex mcp add packetexchange --url https://packetexchange.io/mcp/httpConfig file
{
"mcpServers": {
"packetexchange": {
"url": "https://packetexchange.io/mcp/http"
}
}
}Config file
{
"servers": {
"packetexchange": {
"type": "http",
"url": "https://packetexchange.io/mcp/http"
}
}
}Platform CLI: remote server
gemini mcp add -t http packetexchange https://packetexchange.io/mcp/httpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about PacketExchange
How to install PacketExchange in Claude Code?
Run claude mcp add --transport http packetexchange https://packetexchange.io/mcp/http in your terminal. For non-public tools, supply your API key under the Authorization: Bearer <API key> header within the client configuration.
What does PacketExchange do?
It gives your AI agent direct access to voice calling, SMS messaging, and OTP verification via an external communications marketplace.
Can I use PacketExchange without an API key?
Three market discovery tools operate freely without credentials. For full testing without incurring actual charges, test keys starting with wmmn_test_sk_ are supported.
