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 Pydantic AI?
Pydantic AI validates every SMS GSM-7 Sanitizer tool response against typed schemas, catching data inconsistencies at build time. Connect 1 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.
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Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application
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Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your SMS GSM-7 Sanitizer integration code
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Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors
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Dependency injection system cleanly separates your SMS GSM-7 Sanitizer connection logic from agent behavior for testable, maintainable code
SMS GSM-7 Sanitizer in Pydantic AI
SMS GSM-7 Sanitizer and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect SMS GSM-7 Sanitizer to Pydantic AI 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 Pydantic AI
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 Pydantic AI 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 Pydantic AI
Every tool call from Pydantic AI 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 Pydantic AI discover MCP tools?
Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.
Does Pydantic AI validate MCP tool responses?
Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.
Can I switch LLM providers without changing MCP code?
Absolutely. Pydantic AI abstracts the model layer. your SMS GSM-7 Sanitizer MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.
MCPServerHTTP not found
Update: pip install --upgrade pydantic-ai
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