SimpleLocalize MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with SimpleLocalize MCP or direct API to manage localization keys, update translations, list languages, import files, and export translation data through natural language.

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Api Key

SimpleLocalize is a translation management platform for localization keys, translations, languages, imports, exports, and hosted environments. It helps teams ship multilingual apps faster with clean translation workflows and project-wide language control.

14 Tools

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

Every SimpleLocalize action and event your agent gets out of the box.

Create Tag

Create a project tag for organizing translation keys.

Create Translation Key

Create one translation key and optional metadata in the connected project.

Create Translation Keys

Create up to 100 translation keys and report every rejected entry; valid entries may still be created when others fail.

Delete Tag

Permanently delete one project tag by its exact name.

Delete Translation Key

Permanently delete one translation key, including all translations attached to it, by exact key and namespace.

Export Translations

Create downloadable snapshot URLs for project translations in a selected file format.

Get Project Context

Return the connected project and its current languages, tags, and hosting environments so an agent can choose valid identifiers before managing translations.

Get Translation Key

Return full metadata for one translation key selected by key and namespace.

List Activity

Return a manually selected page of recent project changes for operational visibility.

List File Formats

Return the file formats currently accepted by SimpleLocalize exports, including multi-language, beta, and deprecation metadata.

List Translation Keys

Search translation keys and return one controllable page of provider summary fields.

List Translations

Search translations by key, language, text, review state, or namespace and return one page.

Set Translation

Set the text and optional review state for one existing translation key and language.

Set Translations

Set 1 to 100 translations in one request.

SETUP GUIDE

Connect SimpleLocalize MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
Import and initialize the Composio client, then create a Tool Router session for SimpleLocalize
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Export English translations from SimpleLocalize as JSON'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect SimpleLocalize API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute SimpleLocalize Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'List all languages configured in my SimpleLocalize project'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute SimpleLocalize actions with your Agent

Why Use Composio?

AI Native SimpleLocalize Integration

  • Supports both SimpleLocalize MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable localization tool execution
  • Rich coverage for managing keys, translations, languages, imports, exports, and hosted environments

Managed Auth

  • Secure API key handling without hard-coding SimpleLocalize credentials in your agent code
  • Central place to manage, scope, and revoke SimpleLocalize access
  • Per user and per environment credentials, so dev, staging, and production stay cleanly separated

Agent Optimized Design

  • Tools are shaped so language models can understand SimpleLocalize actions and call them with the right inputs
  • Execution logs help you see which translation keys, languages, imports, or exports were touched
  • Built for real agent workflows where small localization updates need to be safe, repeatable, and easy to review

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access SimpleLocalize
  • Scoped, least privilege access to SimpleLocalize localization projects and resources
  • Full audit trail of agent actions to support release reviews and compliance checks
FAQ

Frequently asked questions

Yes, SimpleLocalize requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

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