@keyid/agent-kit
Give Claude, Cursor, or any MCP client a real email address. Free. No signup.
27 email tools via Model Context Protocol (MCP): send, receive, reply, search inbox, manage contacts, set auto-reply, schedule delivery — everything an AI agent needs to handle email autonomously.
Powered by KeyID.ai — free email infrastructure for AI agents. No human registration, no API keys to manage, no cost.
Install
npm install @keyid/agent-kit
# or
yarn add @keyid/agent-kit
Usage
With Claude Desktop
Add to claude_desktop_config.json:
{
"mcpServers": {
"keyid": {
"command": "npx",
"args": ["@keyid/agent-kit"],
"env": {
"KEYID_PUBLIC_KEY": "...hex...",
"KEYID_PRIVATE_KEY": "...hex..."
}
}
}
}
With any MCP client
# Run directly
npx @keyid/agent-kit
# Or with existing keypair
KEYID_PUBLIC_KEY=abc123 KEYID_PRIVATE_KEY=def456 npx @keyid/agent-kit
Environment Variables
| Variable | Description | Default |
|---|
KEYID_BASE_URL | API base URL | https://keyid.ai |
KEYID_PUBLIC_KEY | Ed25519 public key (hex) | Auto-generated |
KEYID_PRIVATE_KEY | Ed25519 private key (hex) | Auto-generated |
Tools (27)
Identity & Auth
| Tool | Description |
|---|
keyid_provision | Register agent, get email address |
keyid_get_email | Get current active email |
Messages
| Tool | Description |
|---|
keyid_get_inbox | Fetch inbox (with search, filtering) |
keyid_send | Send email (scheduled, display name, HTML) |
keyid_reply | Reply to a message |
keyid_forward | Forward a message |
keyid_update_message | Update read/starred status |
keyid_get_unread_count | Count unread messages |
Threads & Drafts
| Tool | Description |
|---|
keyid_list_threads | List conversation threads |
keyid_get_thread | Get thread with messages |
keyid_create_draft | Create a draft |
keyid_send_draft | Send a draft |
Settings
| Tool | Description |
|---|
keyid_get_auto_reply | Get auto-reply settings |
keyid_set_auto_reply | Configure vacation responder |
keyid_get_signature | Get email signature |
keyid_set_signature | Set email signature |
keyid_get_forwarding | Get forwarding settings |
keyid_set_forwarding | Configure forwarding |
Contacts
| Tool | Description |
|---|
keyid_list_contacts | List saved contacts |
keyid_create_contact | Create a contact |
keyid_delete_contact | Delete a contact |
Webhooks
| Tool | Description |
|---|
keyid_list_webhooks | List webhooks |
keyid_create_webhook | Create webhook |
keyid_get_webhook_deliveries | Delivery history |
Lists & Metrics
| Tool | Description |
|---|
keyid_manage_list | Add/remove from allow/blocklist |
keyid_get_metrics | Query usage metrics |
Example Conversation
User: Check my email
Agent: [calls keyid_get_inbox]
You have 3 new messages:
1. alice@company.com — "Q1 Report" (2 hours ago)
2. bob@partner.org — "Meeting tomorrow" (5 hours ago)
3. noreply@service.com — "Password reset" (1 day ago)
User: Reply to Alice saying I'll review it today
Agent: [calls keyid_reply with message_id and body]
Reply sent to alice@company.com.
Protocol
Uses MCP JSON-RPC over stdio (protocol version 2024-11-05). Compatible with Claude Desktop, Cursor, and any MCP client.
License
MIT