iletiMerkezi MCP Server

Model Context Protocol server for the iletiMerkezi SMS API. Lets MCP-aware LLM clients (Claude Desktop, Cursor, Cline, …) send SMS, query delivery reports, and manage senders / blacklists through tool calls.

iletiMerkezi is a Turkish, BTK-licensed bulk SMS / OTP / A2P platform. Tool shapes (input schemas, descriptions, doc links) are derived from a canonical API manifest that is built from the official endpoint documentation, so this server stays in lock-step with the live API by design.

Tools (MVP)

Tool	API endpoint	Notes
send_sms	POST /v1/send-sms/json	Send SMS to one or many numbers
get_report	POST /v1/get-report/json	Order delivery report (summary + per-recipient)
get_balance	POST /v1/get-balance/json	Account balance (TL + SMS credits)
get_sender	POST /v1/get-sender/json	Approved sender (header) list
get_blacklist	POST /v1/get-blacklist/json	Blocked numbers (paginated)
add_blacklist	POST /v1/add-blacklist/json	Block a number (idempotent)
delete_blacklist	POST /v1/delete-blacklist/json	Unblock a number

Installation

Add the server to your MCP client config. Example for Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

{
  "mcpServers": {
    "iletimerkezi": {
      "command": "npx",
      "args": ["-y", "@iletimerkezi/mcp-server"],
      "env": {
        "ILETIMERKEZI_API_KEY": "your-api-key",
        "ILETIMERKEZI_API_HASH": "your-api-hash"
      }
    }
  }
}

Restart your MCP client. Tools will appear under the iletimerkezi server.

Credentials

Both values come from panel.iletimerkezi.com → Settings → Security → API Access. Copy them as-is — do not hash them yourself; the panel issues a precomputed hash.

You also need to enable Allow API access under Settings → Security → Access Permissions, otherwise every call returns 401. This is the most common onboarding pitfall; the server's 401 error message points back to this toggle.

For the full authentication contract see https://www.iletimerkezi.com/docs/api/authentication.

How tool shapes stay fresh

On boot the server tries, in order:

1. Local cache at ~/.cache/iletimerkezi-mcp/manifest.json, valid for 24 hours.
2. Live fetch of https://www.iletimerkezi.com/api/manifest.json (5s timeout). On success, refreshes the cache atomically.
3. Build-time fallback (dist/manifest.fallback.json) shipped with the npm package — the manifest snapshot at the moment of npm publish.

This means new endpoints or schema changes published to the manifest propagate to running clients within 24 hours, with no npm update required. There is no manually written tool schema anywhere in this repo — the API documentation is the single source of truth.

You can override the manifest URL with ILETIMERKEZI_MANIFEST_URL for staging / preview environments.

Local development

npm install
npm run build
npm test

Smoke-test the server against the live API with credentials in your shell:

ILETIMERKEZI_API_KEY=... ILETIMERKEZI_API_HASH=... node dist/index.js

This speaks MCP over stdio. Use an MCP client to interact, or pipe a JSON-RPC handshake manually for debugging.

Reference

• MCP setup guide: https://www.iletimerkezi.com/docs/mcp (TR) · /en/docs/mcp (EN)
• Overview: https://www.iletimerkezi.com/docs/api/overview
• Authentication: https://www.iletimerkezi.com/docs/api/authentication
• Error codes: https://www.iletimerkezi.com/docs/api/error-codes
• Manifest (machine-readable): https://www.iletimerkezi.com/api/manifest.json
• Release notes: CHANGELOG.md

License

MIT — see LICENSE.