x402mail
Integrates with the Coinbase Developer Platform (CDP) to facilitate crypto-based micropayments in USDC on the Base network for sending and receiving emails.
x402mail
Send and receive emails with crypto micropayments. No accounts, no API keys - just a wallet.
Built on the x402 protocol - every API call is paid with USDC on Base.
Install
pip install x402mail[cdp]Related MCP server: PipRail
Quick Start
export CDP_API_KEY_ID="your-key-id" # from cdp.coinbase.com
export CDP_API_KEY_SECRET="your-key-secret"
export CDP_WALLET_SECRET="your-wallet-secret"from x402mail import X402Mail
mail = X402Mail.from_cdp()
mail.send(
to="alice@example.com",
subject="Hello from x402mail",
body="Sent with 3 lines of Python!"
)
mail.inbox()
mail.messages(limit=5)
mail.read(message_id=1)Or with a private key: X402Mail(private_key=os.getenv("EVM_PRIVATE_KEY"))
MCP Server for AI Agents
Run a local MCP server so LLMs (Claude, GPT, etc.) can send and receive emails:
x402mail mcpAdd to your MCP config (Claude Desktop / Cursor / Claude Code):
{
"mcpServers": {
"x402mail": {
"command": "x402mail",
"args": ["mcp"],
"env": {
"CDP_API_KEY_ID": "your-key-id",
"CDP_API_KEY_SECRET": "your-key-secret",
"CDP_WALLET_SECRET": "your-wallet-secret"
}
}
}
}MCP Tools
Tool | Cost | Description |
| $0.005 | Send an email to any address |
| $0.001 | Get your inbox address and message counts |
| $0.002 | List inbox messages |
| $0.001 | Read a specific message |
Pricing
Action | Cost |
Send email | $0.005 |
Check inbox | $0.001 |
List messages | $0.002 |
Read message | $0.001 |
$1 USDC covers ~200 emails.
Wallet Setup
CDP Server Wallet (recommended): Follow the CDP quickstart guide to get API keys. No private keys to manage.
Private Key: Use any EVM wallet with USDC on Base. pip install x402mail (without [cdp]).
Links
License
MIT
This server cannot be deployed
Maintenance
Related MCP Connectors
Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.
Validates email syntax and MX records. x402 payment required (testnet USDC).
Pay-per-use web extract, token prices, and wallet balances via x402 USDC micropayments.
Email infrastructure for AI agents — send, receive, search, and reply to email over MCP.
Related MCP Servers
- AlicenseNot gradedqualityDmaintenancePublic skill package and hosted MCP email infrastructure for AI agents with inbox creation, sending, memory, recovery, and Solana USDC credit payments.1MIT
- AlicenseAqualityAmaintenanceA budget-bound x402 payment wallet for AI agents: it autonomously pays HTTP 402 payment-gated URLs across every major chain (EVM, Solana, and many non-EVM families). Self-custodial and backendless, your key, your RPC, with spend caps enforced before any on-chain send.89MIT
- AlicenseNot gradedqualityDmaintenanceEnables sending transactional emails with text or HTML body, delivery status, and message ID via Resend. Pay-per-call using x402 micropayments (USDC on Base L2), no API key or signup required.MIT
- FlicenseNot gradedqualityCmaintenanceProvides tools to look up providers, fetch receipts, and verify Ed25519 signatures for x402 payments on Base and Solana, with no API key needed for basic operations.25 npm-