3,400+ MCP servers ready to use
Vinkius
G

Bring Sms Marketing
to Google ADK

Learn how to connect String to Google ADK and start using 10 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

Check String StatusCreate ContactGet ContactGet MessageList CampaignsList ContactsList ConversationsList MessagesList TagsSend Message
Use with Your AI Agent
Ask AI about this MCP Server
ChatGPT Claude Perplexity

What is the String MCP Server?

Connect your String account to any AI agent and manage business messaging.

What you can do

  • Contact Management — List, view, and create contacts
  • Messaging — Send SMS and MMS messages to any phone number
  • Conversation Tracking — View message history and active threads
  • Campaign Management — List SMS marketing campaigns
  • Tag Organization — View contact tags for segmentation
  • Health Check — Verify API connectivity

Built-in capabilities (10)

check_string_status

Verify API connectivity

create_contact

Create a contact

get_contact

Get contact details

get_message

Get message details

list_campaigns

List campaigns

list_contacts

List all contacts

list_conversations

List conversations

list_messages

List messages

list_tags

List all tags

send_message

Send a text message

Why Google ADK?

Google ADK natively supports String as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 10 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

  • —

    Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

  • —

    Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with String

  • —

    Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

  • —

    Seamless integration with Google Cloud services means you can combine String tools with BigQuery, Vertex AI, and Cloud Functions

G
See it in action

String in Google ADK

AI Agent→Vinkius
High Security·Kill Switch·Plug and Play
Why Vinkius

String and 3,400+ other MCP servers. One platform. One governance layer.

Teams that connect String to Google ADK 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.

3,400+MCP Servers ready
<40msCold start
60%Token savings
Raw MCP
Vinkius
Server catalogFind and host yourself3,400+ managed
InfrastructureSelf-hostedSandboxed V8 isolates
Credential handlingPlaintext in configVault + runtime injection
Data loss preventionNoneConfigurable DLP policies
Kill switchNoneGlobal instant shutdown
Financial circuit breakersNonePer-server limits + alerts
Audit trailNoneEd25519 signed logs
SIEM log streamingNoneSplunk, Datadog, Webhook
HoneytokensNoneCanary alerts on leak
Custom domainsNot applicableDNS challenge verified
GDPR complianceManual effortAutomated purge + export
Use with Your AI Agent View step-by-step setup guide for Google ADK →
Enterprise Security

Why teams choose Vinkius for String in Google ADK

The String 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 10 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in Google ADK 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.

Use with Your AI Agent View full String details →
String
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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

The Vinkius Advantage

How Vinkius secures String for Google ADK

Every tool call from Google ADK to the String MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

Can my AI send text messages?

Yes. Use send_message with the recipient phone number and message text. The agent delivers it via String.

02

Can I view conversation history?

Yes. list_conversations shows all active threads, and list_messages returns full message history.

03

Can I create contacts through the AI?

Yes. create_contact adds a new contact with name and phone number to your String directory.

04

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

05

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

06

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.

07

McpToolset not found

Update: pip install --upgrade google-adk