@thaibulksms/tbs

Zero-dependency MCP & CLI for ThaiBulkSMS and ThaiBulkMail APIs.

![npm](https://www.npmjs.com/package/@thaibulksms/tbs) ![License: MIT](LICENSE) ![Node.js](https://nodejs.org/) ![Bun](https://bun.sh/)

README ภาษาไทย | คู่มือติดตั้ง (Thai)

Install

npm install -g @thaibulksms/tbs

Quick Start

# 1. Save credentials (from developer.thaibulksms.com)
tbs login

# 2. Use it
tbs send 0812345678 "Hello" --sender OTP_SMS     # Send SMS
tbs email a@b.com "Subject" --from s@d.com --template <uuid>  # Send email
tbs credit                                       # Check balance
tbs otp 0812345678                               # SMS OTP
tbs email-otp a@b.com --template <uuid>          # Email OTP

No install needed with npx: ``bash npx @thaibulksms/tbs login npx @thaibulksms/tbs send 0812345678 "Hello" ``

Add to AI Agent (MCP)

Claude Code

claude mcp add thaibulksms \
  -e THAIBULKSMS_API_KEY=xxx \
  -e THAIBULKSMS_API_SECRET=xxx \
  -e THAIBULKSMS_OTP_KEY=xxx \
  -e THAIBULKSMS_OTP_SECRET=xxx \
  -- npx -y @thaibulksms/tbs

Or .mcp.json (project-scoped, commit to git): ``json { "mcpServers": { "thaibulksms": { "command": "npx", "args": ["-y", "@thaibulksms/tbs"], "env": { "THAIBULKSMS_API_KEY": "${THAIBULKSMS_API_KEY}", "THAIBULKSMS_API_SECRET": "${THAIBULKSMS_API_SECRET}", "THAIBULKSMS_OTP_KEY": "${THAIBULKSMS_OTP_KEY}", "THAIBULKSMS_OTP_SECRET": "${THAIBULKSMS_OTP_SECRET}" } } } } ``

Gemini CLI

gemini mcp add thaibulksms -- npx -y @thaibulksms/tbs

OpenCode

{
  "mcp": {
    "thaibulksms": {
      "type": "local",
      "command": ["npx", "-y", "@thaibulksms/tbs"],
      "environment": {
        "THAIBULKSMS_API_KEY": "{env:THAIBULKSMS_API_KEY}",
        "THAIBULKSMS_API_SECRET": "{env:THAIBULKSMS_API_SECRET}",
        "THAIBULKSMS_OTP_KEY": "{env:THAIBULKSMS_OTP_KEY}",
        "THAIBULKSMS_OTP_SECRET": "{env:THAIBULKSMS_OTP_SECRET}"
      },
      "enabled": true
    }
  }
}

OpenClaw

OpenClaw reads .mcp.json (same as Claude Code). Drop the .mcp.json file in your project root — OpenClaw picks it up automatically.

Claude Desktop

Config: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS)

{
  "mcpServers": {
    "thaibulksms": {
      "command": "npx",
      "args": ["-y", "@thaibulksms/tbs"],
      "env": {
        "THAIBULKSMS_API_KEY": "your_key",
        "THAIBULKSMS_API_SECRET": "your_secret",
        "THAIBULKSMS_OTP_KEY": "your_otp_key",
        "THAIBULKSMS_OTP_SECRET": "your_otp_secret"
      }
    }
  }
}

Then ask your agent: "Check my SMS credit balance"

---

CLI Commands

tbs login                          Save API credentials
tbs credit                         Check SMS + email credit
tbs send <to> <message>            Send SMS
tbs email <to> <subject>           Send email (template)
tbs otp <to>                       Request SMS OTP
tbs verify <token> <pin>           Verify SMS OTP
tbs email-otp <to>                 Request email OTP
tbs email-verify <token> <code>    Verify email OTP
tbs profiles                       List saved profiles
tbs help <command>                 Per-command help

Flags

| Flag | Description | Commands | |------|-------------|----------| | --sender <id> | SMS sender ID (default: SMS.) | send | | --from <email> | Sender email address | email | | --template <uuid> | Template UUID | email, email-otp | | --json | Machine-readable output | all | | --profile <name> | Use specific profile | all |

Examples

tbs send 0812345678 "Hello" --sender OTP_SMS
tbs send 0812345678 "Hello" --json
tbs email user@example.com "Subject" --from sender@domain.com --template <uuid>
tbs credit --json
tbs otp 0812345678
tbs verify <token> 1234
tbs email-otp user@example.com --template <uuid>
tbs email-verify <token> 733923
tbs login --profile production
tbs credit --profile production

MCP Tools (8)

| Tool | Description | |------|-------------| | send_sms | Send SMS to one Thai mobile number | | send_email | Send email via ThaiBulkMail template | | check_sms_credit | Check SMS credit balance | | check_email_credit | Check email credit balance | | request_otp | Send OTP PIN via SMS | | verify_otp | Verify SMS OTP PIN | | request_email_otp | Send OTP code via email | | verify_email_otp | Verify email OTP code |

Credentials & Setup

API Keys

| What | Where to get it | |------|----------------| | SMS/Email API Key & Secret | Dashboard > Developer Settings | | SMS OTP Key & Secret | OTP Manager | | SMS Sender Name | Dashboard > Sender Name (must register before use) | | Email Template | Dashboard > Email Templates (create and copy template UUID) | | Email OTP Template | Dashboard > Email OTP (create and copy template UUID) |

Environment Variables

| Variable | For | Required | |----------|-----|:--------:| | THAIBULKSMS_API_KEY | SMS, Email | Yes | | THAIBULKSMS_API_SECRET | SMS, Email | Yes | | THAIBULKSMS_OTP_KEY | SMS OTP | For OTP | | THAIBULKSMS_OTP_SECRET | SMS OTP | For OTP |

Precedence: --profile flag > env vars > ~/.config/tbs/default.json

SMS/Email use HTTP Basic Auth. SMS OTP uses separate key/secret in request body. Email OTP uses the same Basic Auth as email.

Architecture

src/
  index.ts        Entry point — CLI commands or MCP (no args)
  cli.ts          Twilio-style CLI handlers
  profile.ts      Credential storage (~/.config/tbs/, chmod 0600)
  transport.ts    MCP JSON-RPC stdio transport (~80 lines)
  server.ts       MCP tool definitions (raw JSON Schema) + handlers
  client.ts       ThaiBulk HTTP client (fetch + Basic Auth)
  validators.ts   Phone/email validation (pure regex)

Zero runtime dependencies. No @modelcontextprotocol/sdk (26MB, 91 packages). Just ~80 lines of JSON-RPC stdio transport using Node.js built-ins.

Development

npm install            # Dev deps only
npm test               # Node.js
npm run test:bun       # Bun
npm run build          # Compile

Security

Credentials in ~/.config/tbs/ (chmod 0600) or env vars — never hardcoded
Single-recipient only — no bulk sends
Thai mobile validation, email header injection prevention
Human-in-the-loop for destructive MCP tools
Zero runtime deps = zero supply chain risk

License

MIT

thaibulksms