Compatible with every major AI agent and IDE
What is the SMS GSM-7 Sanitizer MCP Server?
When a Martech AI Agent drafts an SMS campaign via Twilio or Zenvia, the LLM will often include emojis (🚀) or smart quotes (” instead of "). This instantly breaks the standard 160-character GSM-7 encoding, reducing the limit to 70 characters and splitting the message into 3 parts. The client ends up paying 3x more for the campaign. This MCP solves that perfectly.
The Superpowers
- Emoji Eradication: Safely strips all emojis and zero-width characters using aggressive regular expressions.
- Unicode Transliteration: Converts complex accents and symbols into safe 7-bit ASCII (GSM-7) to guarantee maximum character limits per message segment.
Built-in capabilities (1)
Pass the draft text and the engine will strip emojis and transliterate Unicode to pure 7-bit ASCII, guaranteeing GSM-7 encoding and maximum 160-character segments. Strips emojis and complex Unicode to guarantee 100% GSM-7 compatibility. Prevents Twilio from charging 3x for multi-part SMS messages
Why Claude Desktop?
Claude Desktop is the definitive way to connect SMS GSM-7 Sanitizer to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 1 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.
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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network
SMS GSM-7 Sanitizer in Claude Desktop
SMS GSM-7 Sanitizer and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect SMS GSM-7 Sanitizer to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for SMS GSM-7 Sanitizer in Claude Desktop
The SMS GSM-7 Sanitizer MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 1 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
SMS GSM-7 Sanitizer for Claude Desktop
Every tool call from Claude Desktop to the SMS GSM-7 Sanitizer MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Why does an emoji cost more?
Emojis force the telecom provider to use UCS-2 encoding, which cuts the character limit from 160 down to 70 per message segment.
What happens to accented letters?
Using the unidecode algorithm, letters like 'ç' become 'c' and 'ã' become 'a', ensuring strict ASCII compatibility.
Is this needed for WhatsApp?
No, WhatsApp handles Unicode perfectly. This is specifically for legacy SMS gateways like Twilio and SNS.
How does Claude Desktop discover MCP tools?
When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.
What happens if the MCP server is temporarily unavailable?
Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.
Can I connect multiple MCP servers simultaneously?
Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.
Is there a limit on the number of tools per server?
Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.
Does Claude Desktop support Streamable HTTP transport?
Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.
Server not appearing after restart
Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).
Authentication error
Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.
Tools not showing in chat
Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.
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